11 files changed, 9508 insertions, 7665 deletions
diff --git a/articles/ui/ui.pdf b/articles/ui/ui.pdf
new file mode 100644
index 000000000..98ae6e2d3
--- /dev/null
+++ b/articles/ui/ui.pdf
diff --git a/lib/decl/chrome/chrome.d.ts b/lib/decl/chrome/chrome.d.ts
index dbf6a1244..5a67322f2 100755
--- a/lib/decl/chrome/chrome.d.ts
+++ b/lib/decl/chrome/chrome.d.ts
@@ -3,7 +3,6 @@
 // Definitions by: Matthew Kimber <https://github.com/matthewkimber>, otiai10 <https://github.com/otiai10>, couven92 <https://github.com/couven92>, RReverser <https://github.com/rreverser>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
-/// <reference path='../webrtc/MediaStream.d.ts'/>
 /// <reference path='../filesystem/filesystem.d.ts' />
 
 ////////////////////
diff --git a/lib/decl/lib.es6.d.ts b/lib/decl/lib.es6.d.ts
index ef3399ba8..084ed4e8a 100644
--- a/lib/decl/lib.es6.d.ts
+++ b/lib/decl/lib.es6.d.ts
@@ -13,1350 +13,16 @@ See the Apache Version 2.0 License for specific language governing permissions
 and limitations under the License.
 ***************************************************************************** */
 
-declare type PropertyKey = string | number | symbol;
-
-interface Symbol {
-    /** Returns a string representation of an object. */
-    toString(): string;
-
-    /** Returns the primitive value of the specified object. */
-    valueOf(): Object;
-
-    [Symbol.toStringTag]: "Symbol";
-}
-
-interface SymbolConstructor {
-    /** 
-      * A reference to the prototype. 
-      */
-    prototype: Symbol;
-
-    /**
-      * Returns a new unique Symbol value.
-      * @param  description Description of the new Symbol object.
-      */
-    (description?: string|number): symbol;
-
-    /**
-      * Returns a Symbol object from the global symbol registry matching the given key if found. 
-      * Otherwise, returns a new symbol with this key.
-      * @param key key to search for.
-      */
-    for(key: string): symbol;
-
-    /**
-      * Returns a key from the global symbol registry matching the given Symbol if found. 
-      * Otherwise, returns a undefined.
-      * @param sym Symbol to find the key for.
-      */
-    keyFor(sym: symbol): string;
-
-    // Well-known Symbols
-
-    /** 
-      * A method that determines if a constructor object recognizes an object as one of the 
-      * constructor’s instances. Called by the semantics of the instanceof operator. 
-      */
-    hasInstance: symbol;
-
-    /** 
-      * A Boolean value that if true indicates that an object should flatten to its array elements
-      * by Array.prototype.concat.
-      */
-    isConcatSpreadable: symbol;
-
-    /** 
-      * A method that returns the default iterator for an object. Called by the semantics of the 
-      * for-of statement.
-      */
-    iterator: symbol;
-
-    /**
-      * A regular expression method that matches the regular expression against a string. Called 
-      * by the String.prototype.match method. 
-      */
-    match: symbol;
-
-    /** 
-      * A regular expression method that replaces matched substrings of a string. Called by the 
-      * String.prototype.replace method.
-      */
-    replace: symbol;
-
-    /**
-      * A regular expression method that returns the index within a string that matches the 
-      * regular expression. Called by the String.prototype.search method.
-      */
-    search: symbol;
-
-    /** 
-      * A function valued property that is the constructor function that is used to create 
-      * derived objects.
-      */
-    species: symbol;
-
-    /**
-      * A regular expression method that splits a string at the indices that match the regular 
-      * expression. Called by the String.prototype.split method.
-      */
-    split: symbol;
-
-    /** 
-      * A method that converts an object to a corresponding primitive value.
-      * Called by the ToPrimitive abstract operation.
-      */
-    toPrimitive: symbol;
-
-    /** 
-      * A String value that is used in the creation of the default string description of an object.
-      * Called by the built-in method Object.prototype.toString.
-      */
-    toStringTag: symbol;
-
-    /**
-      * An Object whose own property names are property names that are excluded from the 'with'
-      * environment bindings of the associated objects.
-      */
-    unscopables: symbol;
-}
-declare var Symbol: SymbolConstructor;
-
-interface Object {
-    /**
-      * Determines whether an object has a property with the specified name. 
-      * @param v A property name.
-      */
-    hasOwnProperty(v: PropertyKey): boolean;
-
-    /** 
-      * Determines whether a specified property is enumerable.
-      * @param v A property name.
-      */
-    propertyIsEnumerable(v: PropertyKey): boolean;
-}
-
-interface ObjectConstructor {
-    /**
-      * Copy the values of all of the enumerable own properties from one or more source objects to a 
-      * target object. Returns the target object.
-      * @param target The target object to copy to.
-      * @param source The source object from which to copy properties.
-      */
-    assign<T, U>(target: T, source: U): T & U;
-
-    /**
-      * Copy the values of all of the enumerable own properties from one or more source objects to a 
-      * target object. Returns the target object.
-      * @param target The target object to copy to.
-      * @param source1 The first source object from which to copy properties.
-      * @param source2 The second source object from which to copy properties.
-      */
-    assign<T, U, V>(target: T, source1: U, source2: V): T & U & V;
-
-    /**
-      * Copy the values of all of the enumerable own properties from one or more source objects to a 
-      * target object. Returns the target object.
-      * @param target The target object to copy to.
-      * @param source1 The first source object from which to copy properties.
-      * @param source2 The second source object from which to copy properties.
-      * @param source3 The third source object from which to copy properties.
-      */
-    assign<T, U, V, W>(target: T, source1: U, source2: V, source3: W): T & U & V & W;
-
-    /**
-      * Copy the values of all of the enumerable own properties from one or more source objects to a 
-      * target object. Returns the target object.
-      * @param target The target object to copy to.
-      * @param sources One or more source objects from which to copy properties
-      */
-    assign(target: any, ...sources: any[]): any;
-
-    /**
-      * Returns an array of all symbol properties found directly on object o.
-      * @param o Object to retrieve the symbols from.
-      */
-    getOwnPropertySymbols(o: any): symbol[];
-
-    /**
-      * Returns true if the values are the same value, false otherwise.
-      * @param value1 The first value.
-      * @param value2 The second value.
-      */
-    is(value1: any, value2: any): boolean;
-
-    /**
-      * Sets the prototype of a specified object o to  object proto or null. Returns the object o.
-      * @param o The object to change its prototype.
-      * @param proto The value of the new prototype or null.
-      */
-    setPrototypeOf(o: any, proto: any): any;
-
-    /**
-      * Gets the own property descriptor of the specified object. 
-      * An own property descriptor is one that is defined directly on the object and is not 
-      * inherited from the object's prototype. 
-      * @param o Object that contains the property.
-      * @param p Name of the property.
-    */
-    getOwnPropertyDescriptor(o: any, propertyKey: PropertyKey): PropertyDescriptor;
-
-    /**
-      * Adds a property to an object, or modifies attributes of an existing property. 
-      * @param o Object on which to add or modify the property. This can be a native JavaScript 
-      * object (that is, a user-defined object or a built in object) or a DOM object.
-      * @param p The property name.
-      * @param attributes Descriptor for the property. It can be for a data property or an accessor
-      *  property.
-      */
-    defineProperty(o: any, propertyKey: PropertyKey, attributes: PropertyDescriptor): any;
-}
-
-interface Function {
-    /**
-      * Returns the name of the function. Function names are read-only and can not be changed.
-      */
-    name: string;
-
-    /**
-     * Determines whether the given value inherits from this function if this function was used
-     * as a constructor function.
-     *
-     * A constructor function can control which objects are recognized as its instances by
-     * 'instanceof' by overriding this method.
-     */
-    [Symbol.hasInstance](value: any): boolean;
-}
-
-interface NumberConstructor {
-    /**
-      * The value of Number.EPSILON is the difference between 1 and the smallest value greater than 1
-      * that is representable as a Number value, which is approximately: 
-      * 2.2204460492503130808472633361816 x 10‍−‍16.
-      */
-    EPSILON: number;
-
-    /**
-      * Returns true if passed value is finite.
-      * Unlike the global isFininte, Number.isFinite doesn't forcibly convert the parameter to a 
-      * number. Only finite values of the type number, result in true.
-      * @param number A numeric value.
-      */
-    isFinite(number: number): boolean;
-
-    /**
-      * Returns true if the value passed is an integer, false otherwise.
-      * @param number A numeric value.
-      */
-    isInteger(number: number): boolean;
-
-    /**
-      * Returns a Boolean value that indicates whether a value is the reserved value NaN (not a 
-      * number). Unlike the global isNaN(), Number.isNaN() doesn't forcefully convert the parameter
-      * to a number. Only values of the type number, that are also NaN, result in true.
-      * @param number A numeric value.
-      */
-    isNaN(number: number): boolean;
-
-    /**
-      * Returns true if the value passed is a safe integer.
-      * @param number A numeric value.
-      */
-    isSafeInteger(number: number): boolean;
-
-    /** 
-      * The value of the largest integer n such that n and n + 1 are both exactly representable as 
-      * a Number value. 
-      * The value of Number.MIN_SAFE_INTEGER is 9007199254740991 2^53 − 1.
-      */
-    MAX_SAFE_INTEGER: number;
-
-    /** 
-      * The value of the smallest integer n such that n and n − 1 are both exactly representable as 
-      * a Number value. 
-      * The value of Number.MIN_SAFE_INTEGER is −9007199254740991 (−(2^53 − 1)).
-      */
-    MIN_SAFE_INTEGER: number;
-
-    /**
-      * Converts a string to a floating-point number. 
-      * @param string A string that contains a floating-point number. 
-      */
-    parseFloat(string: string): number;
-
-    /**
-      * Converts A string to an integer.
-      * @param s A string to convert into a number.
-      * @param radix A value between 2 and 36 that specifies the base of the number in numString. 
-      * If this argument is not supplied, strings with a prefix of '0x' are considered hexadecimal.
-      * All other strings are considered decimal.
-      */
-    parseInt(string: string, radix?: number): number;
-}
-
-interface Array<T> {
-    /** Iterator */
-    [Symbol.iterator](): IterableIterator<T>;
-
-    /**
-     * Returns an object whose properties have the value 'true'
-     * when they will be absent when used in a 'with' statement.
-     */
-    [Symbol.unscopables](): {
-        copyWithin: boolean;
-        entries: boolean;
-        fill: boolean;
-        find: boolean;
-        findIndex: boolean;
-        keys: boolean;
-        values: boolean;
-    };
-
-    /** 
-      * Returns an array of key, value pairs for every entry in the array
-      */
-    entries(): IterableIterator<[number, T]>;
-
-    /** 
-      * Returns an list of keys in the array
-      */
-    keys(): IterableIterator<number>;
-
-    /** 
-      * Returns an list of values in the array
-      */
-    values(): IterableIterator<T>;
-
-    /** 
-      * Returns the value of the first element in the array where predicate is true, and undefined 
-      * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
-      * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
-      * predicate. If it is not provided, undefined is used instead.
-      */
-    find(predicate: (value: T, index: number, obj: Array<T>) => boolean, thisArg?: any): T;
-
-    /** 
-      * Returns the index of the first element in the array where predicate is true, and undefined 
-      * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
-      * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
-      * predicate. If it is not provided, undefined is used instead.
-      */
-    findIndex(predicate: (value: T) => boolean, thisArg?: any): number;
-
-    /**
-      * Returns the this object after filling the section identified by start and end with value
-      * @param value value to fill array section with
-      * @param start index to start filling the array at. If start is negative, it is treated as 
-      * length+start where length is the length of the array. 
-      * @param end index to stop filling the array at. If end is negative, it is treated as 
-      * length+end.
-      */
-    fill(value: T, start?: number, end?: number): T[];
-
-    /** 
-      * Returns the this object after copying a section of the array identified by start and end
-      * to the same array starting at position target
-      * @param target If target is negative, it is treated as length+target where length is the 
-      * length of the array. 
-      * @param start If start is negative, it is treated as length+start. If end is negative, it 
-      * is treated as length+end.
-      * @param end If not specified, length of the this object is used as its default value. 
-      */
-    copyWithin(target: number, start: number, end?: number): T[];
-}
-
-interface IArguments {
-    /** Iterator */
-    [Symbol.iterator](): IterableIterator<any>;
-}
-
-interface ArrayConstructor {
-    /**
-      * Creates an array from an array-like object.
-      * @param arrayLike An array-like object to convert to an array.
-      * @param mapfn A mapping function to call on every element of the array.
-      * @param thisArg Value of 'this' used to invoke the mapfn.
-      */
-    from<T, U>(arrayLike: ArrayLike<T>, mapfn: (v: T, k: number) => U, thisArg?: any): Array<U>;
-
-    /**
-      * Creates an array from an iterable object.
-      * @param iterable An iterable object to convert to an array.
-      * @param mapfn A mapping function to call on every element of the array.
-      * @param thisArg Value of 'this' used to invoke the mapfn.
-      */
-    from<T, U>(iterable: Iterable<T>, mapfn: (v: T, k: number) => U, thisArg?: any): Array<U>;
-
-    /**
-      * Creates an array from an array-like object.
-      * @param arrayLike An array-like object to convert to an array.
-      */
-    from<T>(arrayLike: ArrayLike<T>): Array<T>;
-
-    /**
-      * Creates an array from an iterable object.
-      * @param iterable An iterable object to convert to an array.
-      */
-    from<T>(iterable: Iterable<T>): Array<T>;
-
-    /**
-      * Returns a new array from a set of elements.
-      * @param items A set of elements to include in the new array object.
-      */
-    of<T>(...items: T[]): Array<T>;
-}
-
-interface String {
-    /** Iterator */
-    [Symbol.iterator](): IterableIterator<string>;
-
-    /**
-      * Returns a nonnegative integer Number less than 1114112 (0x110000) that is the code point 
-      * value of the UTF-16 encoded code point starting at the string element at position pos in 
-      * the String resulting from converting this object to a String. 
-      * If there is no element at that position, the result is undefined. 
-      * If a valid UTF-16 surrogate pair does not begin at pos, the result is the code unit at pos.
-      */
-    codePointAt(pos: number): number;
-
-    /**
-      * Returns true if searchString appears as a substring of the result of converting this 
-      * object to a String, at one or more positions that are 
-      * greater than or equal to position; otherwise, returns false.
-      * @param searchString search string 
-      * @param position If position is undefined, 0 is assumed, so as to search all of the String.
-      */
-    includes(searchString: string, position?: number): boolean;
-
-    /**
-      * Returns true if the sequence of elements of searchString converted to a String is the 
-      * same as the corresponding elements of this object (converted to a String) starting at 
-      * endPosition – length(this). Otherwise returns false.
-      */
-    endsWith(searchString: string, endPosition?: number): boolean;
-
-    /**
-      * Returns the String value result of normalizing the string into the normalization form 
-      * named by form as specified in Unicode Standard Annex #15, Unicode Normalization Forms.
-      * @param form Applicable values: "NFC", "NFD", "NFKC", or "NFKD", If not specified default
-      * is "NFC"
-      */
-    normalize(form?: string): string;
-
-    /**
-      * Returns a String value that is made from count copies appended together. If count is 0, 
-      * T is the empty String is returned.
-      * @param count number of copies to append
-      */
-    repeat(count: number): string;
-
-    /**
-      * Returns true if the sequence of elements of searchString converted to a String is the 
-      * same as the corresponding elements of this object (converted to a String) starting at 
-      * position. Otherwise returns false.
-      */
-    startsWith(searchString: string, position?: number): boolean;
-
-    // Overloads for objects with methods of well-known symbols.
-
-    /**
-      * Matches a string an object that supports being matched against, and returns an array containing the results of that search.
-      * @param matcher An object that supports being matched against.
-      */
-    match(matcher: { [Symbol.match](string: string): RegExpMatchArray; }): RegExpMatchArray;
-
-    /**
-      * Replaces text in a string, using an object that supports replacement within a string.
-      * @param searchValue A object can search for and replace matches within a string.
-      * @param replaceValue A string containing the text to replace for every successful match of searchValue in this string.
-      */
-    replace(searchValue: { [Symbol.replace](string: string, replaceValue: string): string; }, replaceValue: string): string;
-
-    /**
-      * Replaces text in a string, using an object that supports replacement within a string.
-      * @param searchValue A object can search for and replace matches within a string.
-      * @param replacer A function that returns the replacement text.
-      */
-    replace(searchValue: { [Symbol.replace](string: string, replacer: (substring: string, ...args: any[]) => string): string; }, replacer: (substring: string, ...args: any[]) => string): string;
-
-    /**
-      * Finds the first substring match in a regular expression search.
-      * @param searcher An object which supports searching within a string.
-      */
-    search(searcher: { [Symbol.search](string: string): number; }): number;
-
-    /**
-      * Split a string into substrings using the specified separator and return them as an array.
-      * @param splitter An object that can split a string.
-      * @param limit A value used to limit the number of elements returned in the array.
-      */
-    split(splitter: { [Symbol.split](string: string, limit?: number): string[]; }, limit?: number): string[];
-
-    /**
-      * Returns an <a> HTML anchor element and sets the name attribute to the text value
-      * @param name
-      */
-    anchor(name: string): string;
-
-    /** Returns a <big> HTML element */
-    big(): string;
-
-    /** Returns a <blink> HTML element */
-    blink(): string;
-
-    /** Returns a <b> HTML element */
-    bold(): string;
-
-    /** Returns a <tt> HTML element */
-    fixed(): string
-
-    /** Returns a <font> HTML element and sets the color attribute value */
-    fontcolor(color: string): string
-
-    /** Returns a <font> HTML element and sets the size attribute value */
-    fontsize(size: number): string;
-
-    /** Returns a <font> HTML element and sets the size attribute value */
-    fontsize(size: string): string;
-
-    /** Returns an <i> HTML element */
-    italics(): string;
-
-    /** Returns an <a> HTML element and sets the href attribute value */
-    link(url: string): string;
-
-    /** Returns a <small> HTML element */
-    small(): string;
-
-    /** Returns a <strike> HTML element */
-    strike(): string;
-
-    /** Returns a <sub> HTML element */
-    sub(): string;
-
-    /** Returns a <sup> HTML element */
-    sup(): string;
-}
-
-interface StringConstructor {
-    /**
-      * Return the String value whose elements are, in order, the elements in the List elements.
-      * If length is 0, the empty string is returned.
-      */
-    fromCodePoint(...codePoints: number[]): string;
-
-    /**
-      * String.raw is intended for use as a tag function of a Tagged Template String. When called
-      * as such the first argument will be a well formed template call site object and the rest 
-      * parameter will contain the substitution values.
-      * @param template A well-formed template string call site representation.
-      * @param substitutions A set of substitution values.
-      */
-    raw(template: TemplateStringsArray, ...substitutions: any[]): string;
-}
-
-interface IteratorResult<T> {
-    done: boolean;
-    value?: T;
-}
-
-interface Iterator<T> {
-    next(value?: any): IteratorResult<T>;
-    return?(value?: any): IteratorResult<T>;
-    throw?(e?: any): IteratorResult<T>;
-}
-
-interface Iterable<T> {
-    [Symbol.iterator](): Iterator<T>;
-}
-
-interface IterableIterator<T> extends Iterator<T> {
-    [Symbol.iterator](): IterableIterator<T>;
-}
-
-interface GeneratorFunction extends Function {
-    [Symbol.toStringTag]: "GeneratorFunction";
-}
-
-interface GeneratorFunctionConstructor {
-    /**
-      * Creates a new Generator function.
-      * @param args A list of arguments the function accepts.
-      */
-    new (...args: string[]): GeneratorFunction;
-    (...args: string[]): GeneratorFunction;
-    prototype: GeneratorFunction;
-}
-declare var GeneratorFunction: GeneratorFunctionConstructor;
-
-interface Math {
-    /**
-      * Returns the number of leading zero bits in the 32-bit binary representation of a number.
-      * @param x A numeric expression.
-      */
-    clz32(x: number): number;
-
-    /**
-      * Returns the result of 32-bit multiplication of two numbers.
-      * @param x First number
-      * @param y Second number
-      */
-    imul(x: number, y: number): number;
-
-    /**
-      * Returns the sign of the x, indicating whether x is positive, negative or zero.
-      * @param x The numeric expression to test
-      */
-    sign(x: number): number;
-
-    /**
-      * Returns the base 10 logarithm of a number.
-      * @param x A numeric expression.
-      */
-    log10(x: number): number;
-
-    /**
-      * Returns the base 2 logarithm of a number.
-      * @param x A numeric expression.
-      */
-    log2(x: number): number;
-
-    /**
-      * Returns the natural logarithm of 1 + x.
-      * @param x A numeric expression.
-      */
-    log1p(x: number): number;
-
-    /**
-      * Returns the result of (e^x - 1) of x (e raised to the power of x, where e is the base of 
-      * the natural logarithms).
-      * @param x A numeric expression.
-      */
-    expm1(x: number): number;
-
-    /**
-      * Returns the hyperbolic cosine of a number.
-      * @param x A numeric expression that contains an angle measured in radians.
-      */
-    cosh(x: number): number;
-
-    /**
-      * Returns the hyperbolic sine of a number.
-      * @param x A numeric expression that contains an angle measured in radians.
-      */
-    sinh(x: number): number;
-
-    /**
-      * Returns the hyperbolic tangent of a number.
-      * @param x A numeric expression that contains an angle measured in radians.
-      */
-    tanh(x: number): number;
-
-    /**
-      * Returns the inverse hyperbolic cosine of a number.
-      * @param x A numeric expression that contains an angle measured in radians.
-      */
-    acosh(x: number): number;
-
-    /**
-      * Returns the inverse hyperbolic sine of a number.
-      * @param x A numeric expression that contains an angle measured in radians.
-      */
-    asinh(x: number): number;
-
-    /**
-      * Returns the inverse hyperbolic tangent of a number.
-      * @param x A numeric expression that contains an angle measured in radians.
-      */
-    atanh(x: number): number;
-
-    /**
-      * Returns the square root of the sum of squares of its arguments.
-      * @param values Values to compute the square root for.
-      *     If no arguments are passed, the result is +0.
-      *     If there is only one argument, the result is the absolute value.
-      *     If any argument is +Infinity or -Infinity, the result is +Infinity.
-      *     If any argument is NaN, the result is NaN.
-      *     If all arguments are either +0 or −0, the result is +0.
-      */
-    hypot(...values: number[] ): number;
-
-    /**
-      * Returns the integral part of the a numeric expression, x, removing any fractional digits.
-      * If x is already an integer, the result is x.
-      * @param x A numeric expression.
-      */
-    trunc(x: number): number;
-
-    /**
-      * Returns the nearest single precision float representation of a number.
-      * @param x A numeric expression.
-      */
-    fround(x: number): number;
-
-    /**
-      * Returns an implementation-dependent approximation to the cube root of number.
-      * @param x A numeric expression.
-      */
-    cbrt(x: number): number;
-
-    [Symbol.toStringTag]: "Math";
-}
-
-interface Date {
-    /**
-     * Converts a Date object to a string.
-     */
-    [Symbol.toPrimitive](hint: "default"): string;
-    /**
-     * Converts a Date object to a string.
-     */
-    [Symbol.toPrimitive](hint: "string"): string;
-    /**
-     * Converts a Date object to a number.
-     */
-    [Symbol.toPrimitive](hint: "number"): number;
-    /**
-     * Converts a Date object to a string or number.
-     *
-     * @param hint The strings "number", "string", or "default" to specify what primitive to return.
-     *
-     * @throws {TypeError} If 'hint' was given something other than "number", "string", or "default".
-     * @returns A number if 'hint' was "number", a string if 'hint' was "string" or "default".
-     */
-    [Symbol.toPrimitive](hint: string): string | number;
-}
-
-interface RegExp {
-    /**
-      * Matches a string with this regular expression, and returns an array containing the results of
-      * that search.
-      * @param string A string to search within.
-      */
-    [Symbol.match](string: string): RegExpMatchArray;
-
-    /**
-      * Replaces text in a string, using this regular expression.
-      * @param string A String object or string literal whose contents matching against
-      *               this regular expression will be replaced
-      * @param replaceValue A String object or string literal containing the text to replace for every 
-      *                     successful match of this regular expression.
-      */
-    [Symbol.replace](string: string, replaceValue: string): string;
-
-    /**
-      * Replaces text in a string, using this regular expression.
-      * @param string A String object or string literal whose contents matching against
-      *               this regular expression will be replaced
-      * @param replacer A function that returns the replacement text.
-      */
-    [Symbol.replace](string: string, replacer: (substring: string, ...args: any[]) => string): string;
-
-    /**
-      * Finds the position beginning first substring match in a regular expression search
-      * using this regular expression.
-      *
-      * @param string The string to search within.
-      */
-    [Symbol.search](string: string): number;
-
-    /**
-      * Returns an array of substrings that were delimited by strings in the original input that
-      * match against this regular expression.
-      *
-      * If the regular expression contains capturing parentheses, then each time this
-      * regular expression matches, the results (including any undefined results) of the
-      * capturing parentheses are spliced.
-      *
-      * @param string string value to split
-      * @param limit if not undefined, the output array is truncated so that it contains no more
-      * than 'limit' elements.
-      */
-    [Symbol.split](string: string, limit?: number): string[];
-
-    /**
-      * Returns a string indicating the flags of the regular expression in question. This field is read-only.
-      * The characters in this string are sequenced and concatenated in the following order:
-      *
-      *    - "g" for global
-      *    - "i" for ignoreCase
-      *    - "m" for multiline
-      *    - "u" for unicode
-      *    - "y" for sticky
-      *
-      * If no flags are set, the value is the empty string.
-      */
-    flags: string;
-
-    /** 
-      * Returns a Boolean value indicating the state of the sticky flag (y) used with a regular 
-      * expression. Default is false. Read-only. 
-      */
-    sticky: boolean;
-
-    /** 
-      * Returns a Boolean value indicating the state of the Unicode flag (u) used with a regular 
-      * expression. Default is false. Read-only. 
-      */
-    unicode: boolean;
-}
-
-interface RegExpConstructor {
-    [Symbol.species](): RegExpConstructor;
-}
-
-interface Map<K, V> {
-    clear(): void;
-    delete(key: K): boolean;
-    entries(): IterableIterator<[K, V]>;
-    forEach(callbackfn: (value: V, index: K, map: Map<K, V>) => void, thisArg?: any): void;
-    get(key: K): V;
-    has(key: K): boolean;
-    keys(): IterableIterator<K>;
-    set(key: K, value?: V): Map<K, V>;
-    size: number;
-    values(): IterableIterator<V>;
-    [Symbol.iterator]():IterableIterator<[K,V]>;
-    [Symbol.toStringTag]: "Map";
-}
-
-interface MapConstructor {
-    new (): Map<any, any>;
-    new <K, V>(): Map<K, V>;
-    new <K, V>(iterable: Iterable<[K, V]>): Map<K, V>;
-    prototype: Map<any, any>;
-}
-declare var Map: MapConstructor;
-
-interface WeakMap<K, V> {
-    clear(): void;
-    delete(key: K): boolean;
-    get(key: K): V;
-    has(key: K): boolean;
-    set(key: K, value?: V): WeakMap<K, V>;
-    [Symbol.toStringTag]: "WeakMap";
-}
-
-interface WeakMapConstructor {
-    new (): WeakMap<any, any>;
-    new <K, V>(): WeakMap<K, V>;
-    new <K, V>(iterable: Iterable<[K, V]>): WeakMap<K, V>;
-    prototype: WeakMap<any, any>;
-}
-declare var WeakMap: WeakMapConstructor;
-
-interface Set<T> {
-    add(value: T): Set<T>;
-    clear(): void;
-    delete(value: T): boolean;
-    entries(): IterableIterator<[T, T]>;
-    forEach(callbackfn: (value: T, index: T, set: Set<T>) => void, thisArg?: any): void;
-    has(value: T): boolean;
-    keys(): IterableIterator<T>;
-    size: number;
-    values(): IterableIterator<T>;
-    [Symbol.iterator]():IterableIterator<T>;
-    [Symbol.toStringTag]: "Set";
-}
-
-interface SetConstructor {
-    new (): Set<any>;
-    new <T>(): Set<T>;
-    new <T>(iterable: Iterable<T>): Set<T>;
-    prototype: Set<any>;
-}
-declare var Set: SetConstructor;
-
-interface WeakSet<T> {
-    add(value: T): WeakSet<T>;
-    clear(): void;
-    delete(value: T): boolean;
-    has(value: T): boolean;
-    [Symbol.toStringTag]: "WeakSet";
-}
-
-interface WeakSetConstructor {
-    new (): WeakSet<any>;
-    new <T>(): WeakSet<T>;
-    new <T>(iterable: Iterable<T>): WeakSet<T>;
-    prototype: WeakSet<any>;
-}
-declare var WeakSet: WeakSetConstructor;
-
-interface JSON {
-    [Symbol.toStringTag]: "JSON";
-}
-
-/**
-  * Represents a raw buffer of binary data, which is used to store data for the 
-  * different typed arrays. ArrayBuffers cannot be read from or written to directly, 
-  * but can be passed to a typed array or DataView Object to interpret the raw 
-  * buffer as needed. 
-  */
-interface ArrayBuffer {
-    [Symbol.toStringTag]: "ArrayBuffer";
-}
-
-interface DataView {
-    [Symbol.toStringTag]: "DataView";
-}
-
-/**
-  * A typed array of 8-bit integer values. The contents are initialized to 0. If the requested 
-  * number of bytes could not be allocated an exception is raised.
-  */
-interface Int8Array {
-    /** 
-      * Returns an array of key, value pairs for every entry in the array
-      */
-    entries(): IterableIterator<[number, number]>;
-    /** 
-      * Returns an list of keys in the array
-      */
-    keys(): IterableIterator<number>;
-    /** 
-      * Returns an list of values in the array
-      */
-    values(): IterableIterator<number>;
-    [Symbol.iterator](): IterableIterator<number>;
-    [Symbol.toStringTag]: "Int8Array";
-}
-
-interface Int8ArrayConstructor {
-    new (elements: Iterable<number>): Int8Array;
-
-    /**
-      * Creates an array from an array-like or iterable object.
-      * @param arrayLike An array-like or iterable object to convert to an array.
-      * @param mapfn A mapping function to call on every element of the array.
-      * @param thisArg Value of 'this' used to invoke the mapfn.
-      */
-    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Int8Array;
-}
-
-/**
-  * A typed array of 8-bit unsigned integer values. The contents are initialized to 0. If the 
-  * requested number of bytes could not be allocated an exception is raised.
-  */
-interface Uint8Array {
-    /** 
-      * Returns an array of key, value pairs for every entry in the array
-      */
-    entries(): IterableIterator<[number, number]>;
-    /** 
-      * Returns an list of keys in the array
-      */
-    keys(): IterableIterator<number>;
-    /** 
-      * Returns an list of values in the array
-      */
-    values(): IterableIterator<number>;
-    [Symbol.iterator](): IterableIterator<number>;
-    [Symbol.toStringTag]: "UInt8Array";
-}
-
-interface Uint8ArrayConstructor {
-    new (elements: Iterable<number>): Uint8Array;
-
-    /**
-      * Creates an array from an array-like or iterable object.
-      * @param arrayLike An array-like or iterable object to convert to an array.
-      * @param mapfn A mapping function to call on every element of the array.
-      * @param thisArg Value of 'this' used to invoke the mapfn.
-      */
-    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Uint8Array;
-}
-
-/**
-  * A typed array of 8-bit unsigned integer (clamped) values. The contents are initialized to 0. 
-  * If the requested number of bytes could not be allocated an exception is raised.
-  */
-interface Uint8ClampedArray {
-    /** 
-      * Returns an array of key, value pairs for every entry in the array
-      */
-    entries(): IterableIterator<[number, number]>;
-
-    /** 
-      * Returns an list of keys in the array
-      */
-    keys(): IterableIterator<number>;
-
-    /** 
-      * Returns an list of values in the array
-      */
-    values(): IterableIterator<number>;
-
-    [Symbol.iterator](): IterableIterator<number>;
-    [Symbol.toStringTag]: "Uint8ClampedArray";
-}
-
-interface Uint8ClampedArrayConstructor {
-    new (elements: Iterable<number>): Uint8ClampedArray;
-
-
-    /**
-      * Creates an array from an array-like or iterable object.
-      * @param arrayLike An array-like or iterable object to convert to an array.
-      * @param mapfn A mapping function to call on every element of the array.
-      * @param thisArg Value of 'this' used to invoke the mapfn.
-      */
-    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Uint8ClampedArray;
-}
-
-/**
-  * A typed array of 16-bit signed integer values. The contents are initialized to 0. If the 
-  * requested number of bytes could not be allocated an exception is raised.
-  */
-interface Int16Array {
-    /** 
-      * Returns an array of key, value pairs for every entry in the array
-      */
-    entries(): IterableIterator<[number, number]>;
-
-    /** 
-      * Returns an list of keys in the array
-      */
-    keys(): IterableIterator<number>;
-
-    /** 
-      * Returns an list of values in the array
-      */
-    values(): IterableIterator<number>;
-
-
-    [Symbol.iterator](): IterableIterator<number>;
-    [Symbol.toStringTag]: "Int16Array";
-}
-
-interface Int16ArrayConstructor {
-    new (elements: Iterable<number>): Int16Array;
-
-    /**
-      * Creates an array from an array-like or iterable object.
-      * @param arrayLike An array-like or iterable object to convert to an array.
-      * @param mapfn A mapping function to call on every element of the array.
-      * @param thisArg Value of 'this' used to invoke the mapfn.
-      */
-    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Int16Array;
-}
-
-/**
-  * A typed array of 16-bit unsigned integer values. The contents are initialized to 0. If the 
-  * requested number of bytes could not be allocated an exception is raised.
-  */
-interface Uint16Array {
-    /** 
-      * Returns an array of key, value pairs for every entry in the array
-      */
-    entries(): IterableIterator<[number, number]>;
-    /** 
-      * Returns an list of keys in the array
-      */
-    keys(): IterableIterator<number>;
-    /** 
-      * Returns an list of values in the array
-      */
-    values(): IterableIterator<number>;
-    [Symbol.iterator](): IterableIterator<number>;
-    [Symbol.toStringTag]: "Uint16Array";
-}
-
-interface Uint16ArrayConstructor {
-    new (elements: Iterable<number>): Uint16Array;
-
-    /**
-      * Creates an array from an array-like or iterable object.
-      * @param arrayLike An array-like or iterable object to convert to an array.
-      * @param mapfn A mapping function to call on every element of the array.
-      * @param thisArg Value of 'this' used to invoke the mapfn.
-      */
-    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Uint16Array;
-}
-
-/**
-  * A typed array of 32-bit signed integer values. The contents are initialized to 0. If the 
-  * requested number of bytes could not be allocated an exception is raised.
-  */
-interface Int32Array {
-    /** 
-      * Returns an array of key, value pairs for every entry in the array
-      */
-    entries(): IterableIterator<[number, number]>;
-    /** 
-      * Returns an list of keys in the array
-      */
-    keys(): IterableIterator<number>;
-    /** 
-      * Returns an list of values in the array
-      */
-    values(): IterableIterator<number>;
-    [Symbol.iterator](): IterableIterator<number>;
-    [Symbol.toStringTag]: "Int32Array";
-}
-
-interface Int32ArrayConstructor {
-    new (elements: Iterable<number>): Int32Array;
-
-    /**
-      * Creates an array from an array-like or iterable object.
-      * @param arrayLike An array-like or iterable object to convert to an array.
-      * @param mapfn A mapping function to call on every element of the array.
-      * @param thisArg Value of 'this' used to invoke the mapfn.
-      */
-    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Int32Array;
-}
-
-/**
-  * A typed array of 32-bit unsigned integer values. The contents are initialized to 0. If the 
-  * requested number of bytes could not be allocated an exception is raised.
-  */
-interface Uint32Array {
-    /** 
-      * Returns an array of key, value pairs for every entry in the array
-      */
-    entries(): IterableIterator<[number, number]>;
-    /** 
-      * Returns an list of keys in the array
-      */
-    keys(): IterableIterator<number>;
-    /** 
-      * Returns an list of values in the array
-      */
-    values(): IterableIterator<number>;
-    [Symbol.iterator](): IterableIterator<number>;
-    [Symbol.toStringTag]: "Uint32Array";
-}
-
-interface Uint32ArrayConstructor {
-    new (elements: Iterable<number>): Uint32Array;
-
-    /**
-      * Creates an array from an array-like or iterable object.
-      * @param arrayLike An array-like or iterable object to convert to an array.
-      * @param mapfn A mapping function to call on every element of the array.
-      * @param thisArg Value of 'this' used to invoke the mapfn.
-      */
-    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Uint32Array;
-}
-
-/**
-  * A typed array of 32-bit float values. The contents are initialized to 0. If the requested number
-  * of bytes could not be allocated an exception is raised.
-  */
-interface Float32Array {
-    /** 
-      * Returns an array of key, value pairs for every entry in the array
-      */
-    entries(): IterableIterator<[number, number]>;
-    /** 
-      * Returns an list of keys in the array
-      */
-    keys(): IterableIterator<number>;
-    /** 
-      * Returns an list of values in the array
-      */
-    values(): IterableIterator<number>;
-    [Symbol.iterator](): IterableIterator<number>;
-    [Symbol.toStringTag]: "Float32Array";
-}
-
-interface Float32ArrayConstructor {
-    new (elements: Iterable<number>): Float32Array;
-
-    /**
-      * Creates an array from an array-like or iterable object.
-      * @param arrayLike An array-like or iterable object to convert to an array.
-      * @param mapfn A mapping function to call on every element of the array.
-      * @param thisArg Value of 'this' used to invoke the mapfn.
-      */
-    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Float32Array;
-}
-
-/**
-  * A typed array of 64-bit float values. The contents are initialized to 0. If the requested 
-  * number of bytes could not be allocated an exception is raised.
-  */
-interface Float64Array {
-    /** 
-      * Returns an array of key, value pairs for every entry in the array
-      */
-    entries(): IterableIterator<[number, number]>;
-    /** 
-      * Returns an list of keys in the array
-      */
-    keys(): IterableIterator<number>;
-    /** 
-      * Returns an list of values in the array
-      */
-    values(): IterableIterator<number>;
-    [Symbol.iterator](): IterableIterator<number>;
-    [Symbol.toStringTag]: "Float64Array";
-}
-
-interface Float64ArrayConstructor {
-    new (elements: Iterable<number>): Float64Array;
-
-    /**
-      * Creates an array from an array-like or iterable object.
-      * @param arrayLike An array-like or iterable object to convert to an array.
-      * @param mapfn A mapping function to call on every element of the array.
-      * @param thisArg Value of 'this' used to invoke the mapfn.
-      */
-    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Float64Array;
-}
-
-interface ProxyHandler<T> {
-    getPrototypeOf? (target: T): any;
-    setPrototypeOf? (target: T, v: any): boolean;
-    isExtensible? (target: T): boolean;
-    preventExtensions? (target: T): boolean;
-    getOwnPropertyDescriptor? (target: T, p: PropertyKey): PropertyDescriptor;
-    has? (target: T, p: PropertyKey): boolean;
-    get? (target: T, p: PropertyKey, receiver: any): any;
-    set? (target: T, p: PropertyKey, value: any, receiver: any): boolean;
-    deleteProperty? (target: T, p: PropertyKey): boolean;
-    defineProperty? (target: T, p: PropertyKey, attributes: PropertyDescriptor): boolean;
-    enumerate? (target: T): PropertyKey[];
-    ownKeys? (target: T): PropertyKey[];
-    apply? (target: T, thisArg: any, argArray?: any): any;
-    construct? (target: T, thisArg: any, argArray?: any): any;
-}
-
-interface ProxyConstructor {
-    revocable<T>(target: T, handler: ProxyHandler<T>): { proxy: T; revoke: () => void; };
-    new <T>(target: T, handler: ProxyHandler<T>): T
-}
-declare var Proxy: ProxyConstructor;
-
-declare namespace Reflect {
-    function apply(target: Function, thisArgument: any, argumentsList: ArrayLike<any>): any;
-    function construct(target: Function, argumentsList: ArrayLike<any>, newTarget?: any): any;
-    function defineProperty(target: any, propertyKey: PropertyKey, attributes: PropertyDescriptor): boolean;
-    function deleteProperty(target: any, propertyKey: PropertyKey): boolean;
-    function enumerate(target: any): IterableIterator<any>;
-    function get(target: any, propertyKey: PropertyKey, receiver?: any): any;
-    function getOwnPropertyDescriptor(target: any, propertyKey: PropertyKey): PropertyDescriptor;
-    function getPrototypeOf(target: any): any;
-    function has(target: any, propertyKey: string): boolean;
-    function has(target: any, propertyKey: symbol): boolean;
-    function isExtensible(target: any): boolean;
-    function ownKeys(target: any): Array<PropertyKey>;
-    function preventExtensions(target: any): boolean;
-    function set(target: any, propertyKey: PropertyKey, value: any, receiver?: any): boolean;
-    function setPrototypeOf(target: any, proto: any): boolean;
-}
-
-/**
- * Represents the completion of an asynchronous operation
- */
-interface Promise<T> {
-    /**
-    * Attaches callbacks for the resolution and/or rejection of the Promise.
-    * @param onfulfilled The callback to execute when the Promise is resolved.
-    * @param onrejected The callback to execute when the Promise is rejected.
-    * @returns A Promise for the completion of which ever callback is executed.
-    */
-    then<TResult>(onfulfilled?: (value: T) => TResult | PromiseLike<TResult>, onrejected?: (reason: any) => TResult | PromiseLike<TResult>): Promise<TResult>;
-    then<TResult>(onfulfilled?: (value: T) => TResult | PromiseLike<TResult>, onrejected?: (reason: any) => void): Promise<TResult>;
-
-    /**
-     * Attaches a callback for only the rejection of the Promise.
-     * @param onrejected The callback to execute when the Promise is rejected.
-     * @returns A Promise for the completion of the callback.
-     */
-    catch(onrejected?: (reason: any) => T | PromiseLike<T>): Promise<T>;
-    catch(onrejected?: (reason: any) => void): Promise<T>;
-
-    [Symbol.toStringTag]: "Promise";
-}
-
-interface PromiseConstructor {
-    /** 
-      * A reference to the prototype. 
-      */
-    prototype: Promise<any>;
-
-    /**
-     * Creates a new Promise.
-     * @param executor A callback used to initialize the promise. This callback is passed two arguments: 
-     * a resolve callback used resolve the promise with a value or the result of another promise, 
-     * and a reject callback used to reject the promise with a provided reason or error.
-     */
-    new <T>(executor: (resolve: (value?: T | PromiseLike<T>) => void, reject: (reason?: any) => void) => void): Promise<T>;
-
-    /**
-     * Creates a Promise that is resolved with an array of results when all of the provided Promises 
-     * resolve, or rejected when any Promise is rejected.
-     * @param values An array of Promises.
-     * @returns A new Promise.
-     */
-    all<T1, T2>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>]): Promise<[T1, T2]>;
-    all<T1, T2, T3>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>]): Promise<[T1, T2, T3]>;
-    all<T1, T2, T3, T4>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>]): Promise<[T1, T2, T3, T4]>;
-    all<T1, T2, T3, T4, T5>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>]): Promise<[T1, T2, T3, T4, T5]>;
-    all<T1, T2, T3, T4, T5, T6>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>]): Promise<[T1, T2, T3, T4, T5, T6]>;
-    all<T1, T2, T3, T4, T5, T6, T7>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>]): Promise<[T1, T2, T3, T4, T5, T6, T7]>;
-    all<T1, T2, T3, T4, T5, T6, T7, T8>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8]>;
-    all<T1, T2, T3, T4, T5, T6, T7, T8, T9>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>, T9 | PromiseLike<T9>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8, T9]>;
-    all<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>, T9 | PromiseLike<T9>, T10 | PromiseLike<T10>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10]>;
-    all<TAll>(values: Iterable<TAll | PromiseLike<TAll>>): Promise<TAll[]>;
-
-    /**
-     * Creates a Promise that is resolved or rejected when any of the provided Promises are resolved 
-     * or rejected.
-     * @param values An array of Promises.
-     * @returns A new Promise.
-     */
-    race<T>(values: Iterable<T | PromiseLike<T>>): Promise<T>;
-
-    /**
-     * Creates a new rejected promise for the provided reason.
-     * @param reason The reason the promise was rejected.
-     * @returns A new rejected Promise.
-     */
-    reject(reason: any): Promise<void>;
-
-    /**
-     * Creates a new rejected promise for the provided reason.
-     * @param reason The reason the promise was rejected.
-     * @returns A new rejected Promise.
-     */
-    reject<T>(reason: any): Promise<T>;
-
-    /**
-      * Creates a new resolved promise for the provided value.
-      * @param value A promise.
-      * @returns A promise whose internal state matches the provided promise.
-      */
-    resolve<T>(value: T | PromiseLike<T>): Promise<T>;
-
-    /**
-     * Creates a new resolved promise .
-     * @returns A resolved promise.
-     */
-    resolve(): Promise<void>;
-
-    [Symbol.species]: Function;
-}
-
-declare var Promise: PromiseConstructor;
 /// <reference no-default-lib="true"/>
-
 /////////////////////////////
 /// ECMAScript APIs
 /////////////////////////////
 
-declare var NaN: number;
-declare var Infinity: number;
+declare const NaN: number;
+declare const Infinity: number;
 
 /**
-  * Evaluates JavaScript code and executes it. 
+  * Evaluates JavaScript code and executes it.
   * @param x A String value that contains valid JavaScript code.
   */
 declare function eval(x: string): any;
@@ -1364,25 +30,25 @@ declare function eval(x: string): any;
 /**
   * Converts A string to an integer.
   * @param s A string to convert into a number.
-  * @param radix A value between 2 and 36 that specifies the base of the number in numString. 
+  * @param radix A value between 2 and 36 that specifies the base of the number in numString.
   * If this argument is not supplied, strings with a prefix of '0x' are considered hexadecimal.
   * All other strings are considered decimal.
   */
 declare function parseInt(s: string, radix?: number): number;
 
 /**
-  * Converts a string to a floating-point number. 
-  * @param string A string that contains a floating-point number. 
+  * Converts a string to a floating-point number.
+  * @param string A string that contains a floating-point number.
   */
 declare function parseFloat(string: string): number;
 
 /**
-  * Returns a Boolean value that indicates whether a value is the reserved value NaN (not a number). 
+  * Returns a Boolean value that indicates whether a value is the reserved value NaN (not a number).
   * @param number A numeric value.
   */
 declare function isNaN(number: number): boolean;
 
-/** 
+/**
   * Determines whether a supplied number is finite.
   * @param number Any numeric value.
   */
@@ -1400,7 +66,7 @@ declare function decodeURI(encodedURI: string): string;
   */
 declare function decodeURIComponent(encodedURIComponent: string): string;
 
-/** 
+/**
   * Encodes a text string as a valid Uniform Resource Identifier (URI)
   * @param uri A value representing an encoded URI.
   */
@@ -1439,18 +105,18 @@ interface Object {
     valueOf(): Object;
 
     /**
-      * Determines whether an object has a property with the specified name. 
+      * Determines whether an object has a property with the specified name.
       * @param v A property name.
       */
     hasOwnProperty(v: string): boolean;
 
     /**
-      * Determines whether an object exists in another object's prototype chain. 
+      * Determines whether an object exists in another object's prototype chain.
       * @param v Another object whose prototype chain is to be checked.
       */
     isPrototypeOf(v: Object): boolean;
 
-    /** 
+    /**
       * Determines whether a specified property is enumerable.
       * @param v A property name.
       */
@@ -1463,38 +129,50 @@ interface ObjectConstructor {
     (value: any): any;
 
     /** A reference to the prototype for a class of objects. */
-    prototype: Object;
+    readonly prototype: Object;
 
-    /** 
-      * Returns the prototype of an object. 
+    /**
+      * Returns the prototype of an object.
       * @param o The object that references the prototype.
       */
     getPrototypeOf(o: any): any;
 
     /**
-      * Gets the own property descriptor of the specified object. 
-      * An own property descriptor is one that is defined directly on the object and is not inherited from the object's prototype. 
+      * Gets the own property descriptor of the specified object.
+      * An own property descriptor is one that is defined directly on the object and is not inherited from the object's prototype.
       * @param o Object that contains the property.
       * @param p Name of the property.
     */
     getOwnPropertyDescriptor(o: any, p: string): PropertyDescriptor;
 
-    /** 
-      * Returns the names of the own properties of an object. The own properties of an object are those that are defined directly 
+    /**
+      * Returns the names of the own properties of an object. The own properties of an object are those that are defined directly
       * on that object, and are not inherited from the object's prototype. The properties of an object include both fields (objects) and functions.
       * @param o Object that contains the own properties.
       */
     getOwnPropertyNames(o: any): string[];
 
-    /** 
+    /**
+      * Creates an object that has null prototype.
+      * @param o Object to use as a prototype. May be null
+      */
+    create(o: null): any;
+
+    /**
       * Creates an object that has the specified prototype, and that optionally contains specified properties.
       * @param o Object to use as a prototype. May be null
-      * @param properties JavaScript object that contains one or more property descriptors. 
       */
-    create(o: any, properties?: PropertyDescriptorMap): any;
+    create<T>(o: T): T;
 
     /**
-      * Adds a property to an object, or modifies attributes of an existing property. 
+      * Creates an object that has the specified prototype, and that optionally contains specified properties.
+      * @param o Object to use as a prototype. May be null
+      * @param properties JavaScript object that contains one or more property descriptors.
+      */
+    create(o: any, properties: PropertyDescriptorMap): any;
+
+    /**
+      * Adds a property to an object, or modifies attributes of an existing property.
       * @param o Object on which to add or modify the property. This can be a native JavaScript object (that is, a user-defined object or a built in object) or a DOM object.
       * @param p The property name.
       * @param attributes Descriptor for the property. It can be for a data property or an accessor property.
@@ -1502,7 +180,7 @@ interface ObjectConstructor {
     defineProperty(o: any, p: string, attributes: PropertyDescriptor): any;
 
     /**
-      * Adds one or more properties to an object, and/or modifies attributes of existing properties. 
+      * Adds one or more properties to an object, and/or modifies attributes of existing properties.
       * @param o Object on which to add or modify the properties. This can be a native JavaScript object or a DOM object.
       * @param properties JavaScript object that contains one or more descriptor objects. Each descriptor object describes a data property or an accessor property.
       */
@@ -1510,7 +188,7 @@ interface ObjectConstructor {
 
     /**
       * Prevents the modification of attributes of existing properties, and prevents the addition of new properties.
-      * @param o Object on which to lock the attributes. 
+      * @param o Object on which to lock the attributes.
       */
     seal<T>(o: T): T;
 
@@ -1522,25 +200,25 @@ interface ObjectConstructor {
 
     /**
       * Prevents the addition of new properties to an object.
-      * @param o Object to make non-extensible. 
+      * @param o Object to make non-extensible.
       */
     preventExtensions<T>(o: T): T;
 
     /**
       * Returns true if existing property attributes cannot be modified in an object and new properties cannot be added to the object.
-      * @param o Object to test. 
+      * @param o Object to test.
       */
     isSealed(o: any): boolean;
 
     /**
       * Returns true if existing property attributes and values cannot be modified in an object, and new properties cannot be added to the object.
-      * @param o Object to test.  
+      * @param o Object to test.
       */
     isFrozen(o: any): boolean;
 
     /**
       * Returns a value that indicates whether new properties can be added to an object.
-      * @param o Object to test. 
+      * @param o Object to test.
       */
     isExtensible(o: any): boolean;
 
@@ -1554,7 +232,7 @@ interface ObjectConstructor {
 /**
   * Provides functionality common to all JavaScript objects.
   */
-declare var Object: ObjectConstructor;
+declare const Object: ObjectConstructor;
 
 /**
   * Creates a new function.
@@ -1565,25 +243,25 @@ interface Function {
       * @param thisArg The object to be used as the this object.
       * @param argArray A set of arguments to be passed to the function.
       */
-    apply(thisArg: any, argArray?: any): any;
+    apply(this: Function, thisArg: any, argArray?: any): any;
 
     /**
       * Calls a method of an object, substituting another object for the current object.
       * @param thisArg The object to be used as the current object.
       * @param argArray A list of arguments to be passed to the method.
       */
-    call(thisArg: any, ...argArray: any[]): any;
+    call(this: Function, thisArg: any, ...argArray: any[]): any;
 
     /**
-      * For a given function, creates a bound function that has the same body as the original function. 
+      * For a given function, creates a bound function that has the same body as the original function.
       * The this object of the bound function is associated with the specified object, and has the specified initial parameters.
       * @param thisArg An object to which the this keyword can refer inside the new function.
       * @param argArray A list of arguments to be passed to the new function.
       */
-    bind(thisArg: any, ...argArray: any[]): any;
+    bind(this: Function, thisArg: any, ...argArray: any[]): any;
 
     prototype: any;
-    length: number;
+    readonly length: number;
 
     // Non-standard extensions
     arguments: any;
@@ -1597,10 +275,10 @@ interface FunctionConstructor {
       */
     new (...args: string[]): Function;
     (...args: string[]): Function;
-    prototype: Function;
+    readonly prototype: Function;
 }
 
-declare var Function: FunctionConstructor;
+declare const Function: FunctionConstructor;
 
 interface IArguments {
     [index: number]: any;
@@ -1618,7 +296,7 @@ interface String {
       */
     charAt(pos: number): string;
 
-    /** 
+    /**
       * Returns the Unicode value of the character at the specified location.
       * @param index The zero-based index of the desired character. If there is no character at the specified index, NaN is returned.
       */
@@ -1626,12 +304,12 @@ interface String {
 
     /**
       * Returns a string that contains the concatenation of two or more strings.
-      * @param strings The strings to append to the end of the string.  
+      * @param strings The strings to append to the end of the string.
       */
     concat(...strings: string[]): string;
 
     /**
-      * Returns the position of the first occurrence of a substring. 
+      * Returns the position of the first occurrence of a substring.
       * @param searchString The substring to search for in the string
       * @param position The index at which to begin searching the String object. If omitted, search starts at the beginning of the string.
       */
@@ -1650,17 +328,17 @@ interface String {
       */
     localeCompare(that: string): number;
 
-    /** 
+    /**
       * Matches a string with a regular expression, and returns an array containing the results of that search.
       * @param regexp A variable name or string literal containing the regular expression pattern and flags.
       */
-    match(regexp: string): RegExpMatchArray;
+    match(regexp: string): RegExpMatchArray | null;
 
-    /** 
+    /**
       * Matches a string with a regular expression, and returns an array containing the results of that search.
-      * @param regexp A regular expression object that contains the regular expression pattern and applicable flags. 
+      * @param regexp A regular expression object that contains the regular expression pattern and applicable flags.
       */
-    match(regexp: RegExp): RegExpMatchArray;
+    match(regexp: RegExp): RegExpMatchArray | null;
 
     /**
       * Replaces text in a string, using a regular expression or search string.
@@ -1692,40 +370,40 @@ interface String {
 
     /**
       * Finds the first substring match in a regular expression search.
-      * @param regexp The regular expression pattern and applicable flags. 
+      * @param regexp The regular expression pattern and applicable flags.
       */
     search(regexp: string): number;
 
     /**
       * Finds the first substring match in a regular expression search.
-      * @param regexp The regular expression pattern and applicable flags. 
+      * @param regexp The regular expression pattern and applicable flags.
       */
     search(regexp: RegExp): number;
 
     /**
       * Returns a section of a string.
-      * @param start The index to the beginning of the specified portion of stringObj. 
-      * @param end The index to the end of the specified portion of stringObj. The substring includes the characters up to, but not including, the character indicated by end. 
+      * @param start The index to the beginning of the specified portion of stringObj.
+      * @param end The index to the end of the specified portion of stringObj. The substring includes the characters up to, but not including, the character indicated by end.
       * If this value is not specified, the substring continues to the end of stringObj.
       */
     slice(start?: number, end?: number): string;
 
     /**
       * Split a string into substrings using the specified separator and return them as an array.
-      * @param separator A string that identifies character or characters to use in separating the string. If omitted, a single-element array containing the entire string is returned. 
+      * @param separator A string that identifies character or characters to use in separating the string. If omitted, a single-element array containing the entire string is returned.
       * @param limit A value used to limit the number of elements returned in the array.
       */
     split(separator: string, limit?: number): string[];
 
     /**
       * Split a string into substrings using the specified separator and return them as an array.
-      * @param separator A Regular Express that identifies character or characters to use in separating the string. If omitted, a single-element array containing the entire string is returned. 
+      * @param separator A Regular Express that identifies character or characters to use in separating the string. If omitted, a single-element array containing the entire string is returned.
       * @param limit A value used to limit the number of elements returned in the array.
       */
     split(separator: RegExp, limit?: number): string[];
 
     /**
-      * Returns the substring at the specified location within a String object. 
+      * Returns the substring at the specified location within a String object.
       * @param start The zero-based index number indicating the beginning of the substring.
       * @param end Zero-based index number indicating the end of the substring. The substring includes the characters up to, but not including, the character indicated by end.
       * If end is omitted, the characters from start through the end of the original string are returned.
@@ -1748,7 +426,7 @@ interface String {
     trim(): string;
 
     /** Returns the length of a String object. */
-    length: number;
+    readonly length: number;
 
     // IE extensions
     /**
@@ -1761,20 +439,20 @@ interface String {
     /** Returns the primitive value of the specified object. */
     valueOf(): string;
 
-    [index: number]: string;
+    readonly [index: number]: string;
 }
 
 interface StringConstructor {
     new (value?: any): String;
     (value?: any): string;
-    prototype: String;
+    readonly prototype: String;
     fromCharCode(...codes: number[]): string;
 }
 
-/** 
-  * Allows manipulation and formatting of text strings and determination and location of substrings within strings. 
+/**
+  * Allows manipulation and formatting of text strings and determination and location of substrings within strings.
   */
-declare var String: StringConstructor;
+declare const String: StringConstructor;
 
 interface Boolean {
     /** Returns the primitive value of the specified object. */
@@ -1784,10 +462,10 @@ interface Boolean {
 interface BooleanConstructor {
     new (value?: any): Boolean;
     (value?: any): boolean;
-    prototype: Boolean;
+    readonly prototype: Boolean;
 }
 
-declare var Boolean: BooleanConstructor;
+declare const Boolean: BooleanConstructor;
 
 interface Number {
     /**
@@ -1796,7 +474,7 @@ interface Number {
       */
     toString(radix?: number): string;
 
-    /** 
+    /**
       * Returns a string representing a number in fixed-point notation.
       * @param fractionDigits Number of digits after the decimal point. Must be in the range 0 - 20, inclusive.
       */
@@ -1821,75 +499,75 @@ interface Number {
 interface NumberConstructor {
     new (value?: any): Number;
     (value?: any): number;
-    prototype: Number;
+    readonly prototype: Number;
 
     /** The largest number that can be represented in JavaScript. Equal to approximately 1.79E+308. */
-    MAX_VALUE: number;
+    readonly MAX_VALUE: number;
 
     /** The closest number to zero that can be represented in JavaScript. Equal to approximately 5.00E-324. */
-    MIN_VALUE: number;
+    readonly MIN_VALUE: number;
 
-    /** 
+    /**
       * A value that is not a number.
       * In equality comparisons, NaN does not equal any value, including itself. To test whether a value is equivalent to NaN, use the isNaN function.
       */
-    NaN: number;
+    readonly NaN: number;
 
-    /** 
+    /**
       * A value that is less than the largest negative number that can be represented in JavaScript.
-      * JavaScript displays NEGATIVE_INFINITY values as -infinity. 
+      * JavaScript displays NEGATIVE_INFINITY values as -infinity.
       */
-    NEGATIVE_INFINITY: number;
+    readonly NEGATIVE_INFINITY: number;
 
     /**
-      * A value greater than the largest number that can be represented in JavaScript. 
-      * JavaScript displays POSITIVE_INFINITY values as infinity. 
+      * A value greater than the largest number that can be represented in JavaScript.
+      * JavaScript displays POSITIVE_INFINITY values as infinity.
       */
-    POSITIVE_INFINITY: number;
+    readonly POSITIVE_INFINITY: number;
 }
 
 /** An object that represents a number of any kind. All JavaScript numbers are 64-bit floating-point numbers. */
-declare var Number: NumberConstructor;
+declare const Number: NumberConstructor;
 
-interface TemplateStringsArray extends Array<string> {
-    raw: string[];
+interface TemplateStringsArray extends ReadonlyArray<string> {
+    readonly raw: ReadonlyArray<string>
 }
 
 interface Math {
     /** The mathematical constant e. This is Euler's number, the base of natural logarithms. */
-    E: number;
+    readonly E: number;
     /** The natural logarithm of 10. */
-    LN10: number;
+    readonly LN10: number;
     /** The natural logarithm of 2. */
-    LN2: number;
+    readonly LN2: number;
     /** The base-2 logarithm of e. */
-    LOG2E: number;
+    readonly LOG2E: number;
     /** The base-10 logarithm of e. */
-    LOG10E: number;
+    readonly LOG10E: number;
     /** Pi. This is the ratio of the circumference of a circle to its diameter. */
-    PI: number;
+    readonly PI: number;
     /** The square root of 0.5, or, equivalently, one divided by the square root of 2. */
-    SQRT1_2: number;
+    readonly SQRT1_2: number;
     /** The square root of 2. */
-    SQRT2: number;
+    readonly SQRT2: number;
     /**
-      * Returns the absolute value of a number (the value without regard to whether it is positive or negative). 
+      * Returns the absolute value of a number (the value without regard to whether it is positive or negative).
       * For example, the absolute value of -5 is the same as the absolute value of 5.
       * @param x A numeric expression for which the absolute value is needed.
       */
     abs(x: number): number;
     /**
-      * Returns the arc cosine (or inverse cosine) of a number. 
+      * Returns the arc cosine (or inverse cosine) of a number.
       * @param x A numeric expression.
       */
     acos(x: number): number;
-    /** 
-      * Returns the arcsine of a number. 
+    /**
+      * Returns the arcsine of a number.
       * @param x A numeric expression.
       */
     asin(x: number): number;
     /**
-      * Returns the arctangent of a number. 
+      * Returns the arctangent of a number.
       * @param x A numeric expression for which the arctangent is needed.
       */
     atan(x: number): number;
@@ -1900,49 +578,49 @@ interface Math {
       */
     atan2(y: number, x: number): number;
     /**
-      * Returns the smallest number greater than or equal to its numeric argument. 
+      * Returns the smallest number greater than or equal to its numeric argument.
       * @param x A numeric expression.
       */
     ceil(x: number): number;
     /**
-      * Returns the cosine of a number. 
+      * Returns the cosine of a number.
       * @param x A numeric expression that contains an angle measured in radians.
       */
     cos(x: number): number;
     /**
-      * Returns e (the base of natural logarithms) raised to a power. 
+      * Returns e (the base of natural logarithms) raised to a power.
       * @param x A numeric expression representing the power of e.
       */
     exp(x: number): number;
     /**
-      * Returns the greatest number less than or equal to its numeric argument. 
+      * Returns the greatest number less than or equal to its numeric argument.
       * @param x A numeric expression.
       */
     floor(x: number): number;
     /**
-      * Returns the natural logarithm (base e) of a number. 
+      * Returns the natural logarithm (base e) of a number.
       * @param x A numeric expression.
       */
     log(x: number): number;
     /**
-      * Returns the larger of a set of supplied numeric expressions. 
+      * Returns the larger of a set of supplied numeric expressions.
       * @param values Numeric expressions to be evaluated.
       */
     max(...values: number[]): number;
     /**
-      * Returns the smaller of a set of supplied numeric expressions. 
+      * Returns the smaller of a set of supplied numeric expressions.
       * @param values Numeric expressions to be evaluated.
       */
     min(...values: number[]): number;
     /**
-      * Returns the value of a base expression taken to a specified power. 
+      * Returns the value of a base expression taken to a specified power.
       * @param x The base value of the expression.
       * @param y The exponent value of the expression.
       */
     pow(x: number, y: number): number;
     /** Returns a pseudorandom number between 0 and 1. */
     random(): number;
-    /** 
+    /**
       * Returns a supplied numeric expression rounded to the nearest number.
       * @param x The value to be rounded to the nearest number.
       */
@@ -1964,7 +642,7 @@ interface Math {
     tan(x: number): number;
 }
 /** An intrinsic object that provides basic mathematics functionality and constants. */
-declare var Math: Math;
+declare const Math: Math;
 
 /** Enables basic storage and retrieval of dates and times. */
 interface Date {
@@ -2018,24 +696,24 @@ interface Date {
     getUTCMilliseconds(): number;
     /** Gets the difference in minutes between the time on the local computer and Universal Coordinated Time (UTC). */
     getTimezoneOffset(): number;
-    /** 
+    /**
       * Sets the date and time value in the Date object.
-      * @param time A numeric value representing the number of elapsed milliseconds since midnight, January 1, 1970 GMT. 
+      * @param time A numeric value representing the number of elapsed milliseconds since midnight, January 1, 1970 GMT.
       */
     setTime(time: number): number;
     /**
-      * Sets the milliseconds value in the Date object using local time. 
+      * Sets the milliseconds value in the Date object using local time.
       * @param ms A numeric value equal to the millisecond value.
       */
     setMilliseconds(ms: number): number;
-    /** 
+    /**
       * Sets the milliseconds value in the Date object using Universal Coordinated Time (UTC).
-      * @param ms A numeric value equal to the millisecond value. 
+      * @param ms A numeric value equal to the millisecond value.
       */
     setUTCMilliseconds(ms: number): number;
 
     /**
-      * Sets the seconds value in the Date object using local time. 
+      * Sets the seconds value in the Date object using local time.
       * @param sec A numeric value equal to the seconds value.
       * @param ms A numeric value equal to the milliseconds value.
       */
@@ -2047,16 +725,16 @@ interface Date {
       */
     setUTCSeconds(sec: number, ms?: number): number;
     /**
-      * Sets the minutes value in the Date object using local time. 
-      * @param min A numeric value equal to the minutes value. 
-      * @param sec A numeric value equal to the seconds value. 
+      * Sets the minutes value in the Date object using local time.
+      * @param min A numeric value equal to the minutes value.
+      * @param sec A numeric value equal to the seconds value.
       * @param ms A numeric value equal to the milliseconds value.
       */
     setMinutes(min: number, sec?: number, ms?: number): number;
     /**
       * Sets the minutes value in the Date object using Universal Coordinated Time (UTC).
-      * @param min A numeric value equal to the minutes value. 
-      * @param sec A numeric value equal to the seconds value. 
+      * @param min A numeric value equal to the minutes value.
+      * @param sec A numeric value equal to the seconds value.
       * @param ms A numeric value equal to the milliseconds value.
       */
     setUTCMinutes(min: number, sec?: number, ms?: number): number;
@@ -2064,7 +742,7 @@ interface Date {
       * Sets the hour value in the Date object using local time.
       * @param hours A numeric value equal to the hours value.
       * @param min A numeric value equal to the minutes value.
-      * @param sec A numeric value equal to the seconds value. 
+      * @param sec A numeric value equal to the seconds value.
       * @param ms A numeric value equal to the milliseconds value.
       */
     setHours(hours: number, min?: number, sec?: number, ms?: number): number;
@@ -2072,23 +750,23 @@ interface Date {
       * Sets the hours value in the Date object using Universal Coordinated Time (UTC).
       * @param hours A numeric value equal to the hours value.
       * @param min A numeric value equal to the minutes value.
-      * @param sec A numeric value equal to the seconds value. 
+      * @param sec A numeric value equal to the seconds value.
       * @param ms A numeric value equal to the milliseconds value.
       */
     setUTCHours(hours: number, min?: number, sec?: number, ms?: number): number;
     /**
-      * Sets the numeric day-of-the-month value of the Date object using local time. 
+      * Sets the numeric day-of-the-month value of the Date object using local time.
       * @param date A numeric value equal to the day of the month.
       */
     setDate(date: number): number;
-    /** 
+    /**
       * Sets the numeric day of the month in the Date object using Universal Coordinated Time (UTC).
-      * @param date A numeric value equal to the day of the month. 
+      * @param date A numeric value equal to the day of the month.
       */
     setUTCDate(date: number): number;
-    /** 
-      * Sets the month value in the Date object using local time. 
-      * @param month A numeric value equal to the month. The value for January is 0, and other month values follow consecutively. 
+    /**
+      * Sets the month value in the Date object using local time.
+      * @param month A numeric value equal to the month. The value for January is 0, and other month values follow consecutively.
       * @param date A numeric value representing the day of the month. If this value is not supplied, the value from a call to the getDate method is used.
       */
     setMonth(month: number, date?: number): number;
@@ -2126,14 +804,14 @@ interface DateConstructor {
     new (value: string): Date;
     new (year: number, month: number, date?: number, hours?: number, minutes?: number, seconds?: number, ms?: number): Date;
     (): string;
-    prototype: Date;
+    readonly prototype: Date;
     /**
       * Parses a string containing a date, and returns the number of milliseconds between that date and midnight, January 1, 1970.
       * @param s A date string
       */
     parse(s: string): number;
     /**
-      * Returns the number of milliseconds between midnight, January 1, 1970 Universal Coordinated Time (UTC) (or GMT) and the specified date. 
+      * Returns the number of milliseconds between midnight, January 1, 1970 Universal Coordinated Time (UTC) (or GMT) and the specified date.
       * @param year The full year designation is required for cross-century date accuracy. If year is between 0 and 99 is used, then year is assumed to be 1900 + year.
       * @param month The month as an number between 0 and 11 (January to December).
       * @param date The date as an number between 1 and 31.
@@ -2146,7 +824,7 @@ interface DateConstructor {
     now(): number;
 }
 
-declare var Date: DateConstructor;
+declare const Date: DateConstructor;
 
 interface RegExpMatchArray extends Array<string> {
     index?: number;
@@ -2159,40 +837,42 @@ interface RegExpExecArray extends Array<string> {
 }
 
 interface RegExp {
-    /** 
+    /**
       * Executes a search on a string using a regular expression pattern, and returns an array containing the results of that search.
       * @param string The String object or string literal on which to perform the search.
       */
-    exec(string: string): RegExpExecArray;
+    exec(string: string): RegExpExecArray | null;
 
-    /** 
+    /**
       * Returns a Boolean value that indicates whether or not a pattern exists in a searched string.
       * @param string String on which to perform the search.
       */
     test(string: string): boolean;
 
     /** Returns a copy of the text of the regular expression pattern. Read-only. The regExp argument is a Regular expression object. It can be a variable name or a literal. */
-    source: string;
+    readonly source: string;
 
     /** Returns a Boolean value indicating the state of the global flag (g) used with a regular expression. Default is false. Read-only. */
-    global: boolean;
+    readonly global: boolean;
 
     /** Returns a Boolean value indicating the state of the ignoreCase flag (i) used with a regular expression. Default is false. Read-only. */
-    ignoreCase: boolean;
+    readonly ignoreCase: boolean;
 
     /** Returns a Boolean value indicating the state of the multiline flag (m) used with a regular expression. Default is false. Read-only. */
-    multiline: boolean;
+    readonly multiline: boolean;
 
     lastIndex: number;
 
     // Non-standard extensions
-    compile(): RegExp;
+    compile(): this;
 }
 
 interface RegExpConstructor {
+    new (pattern: RegExp): RegExp;
     new (pattern: string, flags?: string): RegExp;
+    (pattern: RegExp): RegExp;
     (pattern: string, flags?: string): RegExp;
-    prototype: RegExp;
+    readonly prototype: RegExp;
 
     // Non-standard extensions
     $1: string;
@@ -2207,20 +887,21 @@ interface RegExpConstructor {
     lastMatch: string;
 }
 
-declare var RegExp: RegExpConstructor;
+declare const RegExp: RegExpConstructor;
 
 interface Error {
     name: string;
     message: string;
+    stack?: string;
 }
 
 interface ErrorConstructor {
     new (message?: string): Error;
     (message?: string): Error;
-    prototype: Error;
+    readonly prototype: Error;
 }
 
-declare var Error: ErrorConstructor;
+declare const Error: ErrorConstructor;
 
 interface EvalError extends Error {
 }
@@ -2228,10 +909,10 @@ interface EvalError extends Error {
 interface EvalErrorConstructor {
     new (message?: string): EvalError;
     (message?: string): EvalError;
-    prototype: EvalError;
+    readonly prototype: EvalError;
 }
 
-declare var EvalError: EvalErrorConstructor;
+declare const EvalError: EvalErrorConstructor;
 
 interface RangeError extends Error {
 }
@@ -2239,10 +920,10 @@ interface RangeError extends Error {
 interface RangeErrorConstructor {
     new (message?: string): RangeError;
     (message?: string): RangeError;
-    prototype: RangeError;
+    readonly prototype: RangeError;
 }
 
-declare var RangeError: RangeErrorConstructor;
+declare const RangeError: RangeErrorConstructor;
 
 interface ReferenceError extends Error {
 }
@@ -2250,10 +931,10 @@ interface ReferenceError extends Error {
 interface ReferenceErrorConstructor {
     new (message?: string): ReferenceError;
     (message?: string): ReferenceError;
-    prototype: ReferenceError;
+    readonly prototype: ReferenceError;
 }
 
-declare var ReferenceError: ReferenceErrorConstructor;
+declare const ReferenceError: ReferenceErrorConstructor;
 
 interface SyntaxError extends Error {
 }
@@ -2261,10 +942,10 @@ interface SyntaxError extends Error {
 interface SyntaxErrorConstructor {
     new (message?: string): SyntaxError;
     (message?: string): SyntaxError;
-    prototype: SyntaxError;
+    readonly prototype: SyntaxError;
 }
 
-declare var SyntaxError: SyntaxErrorConstructor;
+declare const SyntaxError: SyntaxErrorConstructor;
 
 interface TypeError extends Error {
 }
@@ -2272,10 +953,10 @@ interface TypeError extends Error {
 interface TypeErrorConstructor {
     new (message?: string): TypeError;
     (message?: string): TypeError;
-    prototype: TypeError;
+    readonly prototype: TypeError;
 }
 
-declare var TypeError: TypeErrorConstructor;
+declare const TypeError: TypeErrorConstructor;
 
 interface URIError extends Error {
 }
@@ -2283,61 +964,152 @@ interface URIError extends Error {
 interface URIErrorConstructor {
     new (message?: string): URIError;
     (message?: string): URIError;
-    prototype: URIError;
+    readonly prototype: URIError;
 }
 
-declare var URIError: URIErrorConstructor;
+declare const URIError: URIErrorConstructor;
 
 interface JSON {
     /**
       * Converts a JavaScript Object Notation (JSON) string into an object.
       * @param text A valid JSON string.
-      * @param reviver A function that transforms the results. This function is called for each member of the object. 
-      * If a member contains nested objects, the nested objects are transformed before the parent object is. 
+      * @param reviver A function that transforms the results. This function is called for each member of the object.
+      * If a member contains nested objects, the nested objects are transformed before the parent object is.
       */
     parse(text: string, reviver?: (key: any, value: any) => any): any;
     /**
       * Converts a JavaScript value to a JavaScript Object Notation (JSON) string.
       * @param value A JavaScript value, usually an object or array, to be converted.
-      */
-    stringify(value: any): string;
-    /**
-      * Converts a JavaScript value to a JavaScript Object Notation (JSON) string.
-      * @param value A JavaScript value, usually an object or array, to be converted.
-      * @param replacer A function that transforms the results.
-      */
-    stringify(value: any, replacer: (key: string, value: any) => any): string;
-    /**
-      * Converts a JavaScript value to a JavaScript Object Notation (JSON) string.
-      * @param value A JavaScript value, usually an object or array, to be converted.
-      * @param replacer Array that transforms the results.
-      */
-    stringify(value: any, replacer: any[]): string;
-    /**
-      * Converts a JavaScript value to a JavaScript Object Notation (JSON) string.
-      * @param value A JavaScript value, usually an object or array, to be converted.
       * @param replacer A function that transforms the results.
       * @param space Adds indentation, white space, and line break characters to the return-value JSON text to make it easier to read.
       */
-    stringify(value: any, replacer: (key: string, value: any) => any, space: string | number): string;
+    stringify(value: any, replacer?: (key: string, value: any) => any, space?: string | number): string;
     /**
       * Converts a JavaScript value to a JavaScript Object Notation (JSON) string.
       * @param value A JavaScript value, usually an object or array, to be converted.
-      * @param replacer Array that transforms the results.
+      * @param replacer An array of strings and numbers that acts as a approved list for selecting the object properties that will be stringified.
       * @param space Adds indentation, white space, and line break characters to the return-value JSON text to make it easier to read.
       */
-    stringify(value: any, replacer: any[], space: string | number): string;
+    stringify(value: any, replacer?: (number | string)[] | null, space?: string | number): string;
 }
+
 /**
   * An intrinsic object that provides functions to convert JavaScript values to and from the JavaScript Object Notation (JSON) format.
   */
-declare var JSON: JSON;
+declare const JSON: JSON;
 
 
 /////////////////////////////
 /// ECMAScript Array API (specially handled by compiler)
 /////////////////////////////
 
+interface ReadonlyArray<T> {
+    /**
+      * Gets the length of the array. This is a number one higher than the highest element defined in an array.
+      */
+    readonly length: number;
+    /**
+      * Returns a string representation of an array.
+      */
+    toString(): string;
+    toLocaleString(): string;
+    /**
+      * Combines two or more arrays.
+      * @param items Additional items to add to the end of array1.
+      */
+    concat<U extends ReadonlyArray<T>>(...items: U[]): T[];
+    /**
+      * Combines two or more arrays.
+      * @param items Additional items to add to the end of array1.
+      */
+    concat(...items: T[][]): T[];
+    /**
+      * Combines two or more arrays.
+      * @param items Additional items to add to the end of array1.
+      */
+    concat(...items: (T | T[])[]): T[];
+    /**
+      * Adds all the elements of an array separated by the specified separator string.
+      * @param separator A string used to separate one element of an array from the next in the resulting String. If omitted, the array elements are separated with a comma.
+      */
+    join(separator?: string): string;
+    /**
+      * Returns a section of an array.
+      * @param start The beginning of the specified portion of the array.
+      * @param end The end of the specified portion of the array.
+      */
+    slice(start?: number, end?: number): T[];
+    /**
+      * Returns the index of the first occurrence of a value in an array.
+      * @param searchElement The value to locate in the array.
+      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the search starts at index 0.
+      */
+    indexOf(searchElement: T, fromIndex?: number): number;
+
+    /**
+      * Returns the index of the last occurrence of a specified value in an array.
+      * @param searchElement The value to locate in the array.
+      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the search starts at the last index in the array.
+      */
+    lastIndexOf(searchElement: T, fromIndex?: number): number;
+    /**
+      * Determines whether all the members of an array satisfy the specified test.
+      * @param callbackfn A function that accepts up to three arguments. The every method calls the callbackfn function for each element in array1 until the callbackfn returns false, or until the end of the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
+      */
+    every(callbackfn: (value: T, index: number, array: ReadonlyArray<T>) => boolean, thisArg?: any): boolean;
+    /**
+      * Determines whether the specified callback function returns true for any element of an array.
+      * @param callbackfn A function that accepts up to three arguments. The some method calls the callbackfn function for each element in array1 until the callbackfn returns true, or until the end of the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
+      */
+    some(callbackfn: (value: T, index: number, array: ReadonlyArray<T>) => boolean, thisArg?: any): boolean;
+    /**
+      * Performs the specified action for each element in an array.
+      * @param callbackfn  A function that accepts up to three arguments. forEach calls the callbackfn function one time for each element in the array.
+      * @param thisArg  An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
+      */
+    forEach(callbackfn: (value: T, index: number, array: ReadonlyArray<T>) => void, thisArg?: any): void;
+    /**
+      * Calls a defined callback function on each element of an array, and returns an array that contains the results.
+      * @param callbackfn A function that accepts up to three arguments. The map method calls the callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
+      */
+    map<U>(callbackfn: (value: T, index: number, array: ReadonlyArray<T>) => U, thisArg?: any): U[];
+    /**
+      * Returns the elements of an array that meet the condition specified in a callback function.
+      * @param callbackfn A function that accepts up to three arguments. The filter method calls the callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
+      */
+    filter(callbackfn: (value: T, index: number, array: ReadonlyArray<T>) => any, thisArg?: any): T[];
+    /**
+      * Calls the specified callback function for all the elements in an array. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start the accumulation. The first call to the callbackfn function provides this value as an argument instead of an array value.
+      */
+    reduce(callbackfn: (previousValue: T, currentValue: T, currentIndex: number, array: ReadonlyArray<T>) => T, initialValue?: T): T;
+    /**
+      * Calls the specified callback function for all the elements in an array. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start the accumulation. The first call to the callbackfn function provides this value as an argument instead of an array value.
+      */
+    reduce<U>(callbackfn: (previousValue: U, currentValue: T, currentIndex: number, array: ReadonlyArray<T>) => U, initialValue: U): U;
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
+      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start the accumulation. The first call to the callbackfn function provides this value as an argument instead of an array value.
+      */
+    reduceRight(callbackfn: (previousValue: T, currentValue: T, currentIndex: number, array: ReadonlyArray<T>) => T, initialValue?: T): T;
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
+      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start the accumulation. The first call to the callbackfn function provides this value as an argument instead of an array value.
+      */
+    reduceRight<U>(callbackfn: (previousValue: U, currentValue: T, currentIndex: number, array: ReadonlyArray<T>) => U, initialValue: U): U;
+
+    readonly [n: number]: T;
+}
+
 interface Array<T> {
     /**
       * Gets or sets the length of the array. This is a number one higher than the highest element defined in an array.
@@ -2356,49 +1128,46 @@ interface Array<T> {
     /**
       * Removes the last element from an array and returns it.
       */
-    pop(): T;
+    pop(): T | undefined;
     /**
       * Combines two or more arrays.
       * @param items Additional items to add to the end of array1.
       */
-    concat<U extends T[]>(...items: U[]): T[];
+    concat(...items: T[][]): T[];
     /**
       * Combines two or more arrays.
       * @param items Additional items to add to the end of array1.
       */
-    concat(...items: T[]): T[];
+    concat(...items: (T | T[])[]): T[];
     /**
       * Adds all the elements of an array separated by the specified separator string.
       * @param separator A string used to separate one element of an array from the next in the resulting String. If omitted, the array elements are separated with a comma.
       */
     join(separator?: string): string;
     /**
-      * Reverses the elements in an Array. 
+      * Reverses the elements in an Array.
       */
     reverse(): T[];
     /**
       * Removes the first element from an array and returns it.
       */
-    shift(): T;
-    /** 
+    shift(): T | undefined;
+    /**
       * Returns a section of an array.
       * @param start The beginning of the specified portion of the array.
       * @param end The end of the specified portion of the array.
       */
     slice(start?: number, end?: number): T[];
-
     /**
       * Sorts an array.
       * @param compareFn The name of the function used to determine the order of the elements. If omitted, the elements are sorted in ascending, ASCII character order.
       */
-    sort(compareFn?: (a: T, b: T) => number): T[];
-
+    sort(compareFn?: (a: T, b: T) => number): this;
     /**
       * Removes elements from an array and, if necessary, inserts new elements in their place, returning the deleted elements.
       * @param start The zero-based location in the array from which to start removing elements.
       */
     splice(start: number): T[];
-
     /**
       * Removes elements from an array and, if necessary, inserts new elements in their place, returning the deleted elements.
       * @param start The zero-based location in the array from which to start removing elements.
@@ -2406,62 +1175,53 @@ interface Array<T> {
       * @param items Elements to insert into the array in place of the deleted elements.
       */
     splice(start: number, deleteCount: number, ...items: T[]): T[];
-
     /**
       * Inserts new elements at the start of an array.
       * @param items  Elements to insert at the start of the Array.
       */
     unshift(...items: T[]): number;
-
     /**
       * Returns the index of the first occurrence of a value in an array.
       * @param searchElement The value to locate in the array.
       * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the search starts at index 0.
       */
     indexOf(searchElement: T, fromIndex?: number): number;
-
     /**
       * Returns the index of the last occurrence of a specified value in an array.
       * @param searchElement The value to locate in the array.
       * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the search starts at the last index in the array.
       */
     lastIndexOf(searchElement: T, fromIndex?: number): number;
-
     /**
       * Determines whether all the members of an array satisfy the specified test.
       * @param callbackfn A function that accepts up to three arguments. The every method calls the callbackfn function for each element in array1 until the callbackfn returns false, or until the end of the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
     every(callbackfn: (value: T, index: number, array: T[]) => boolean, thisArg?: any): boolean;
-
     /**
       * Determines whether the specified callback function returns true for any element of an array.
       * @param callbackfn A function that accepts up to three arguments. The some method calls the callbackfn function for each element in array1 until the callbackfn returns true, or until the end of the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
     some(callbackfn: (value: T, index: number, array: T[]) => boolean, thisArg?: any): boolean;
-
     /**
       * Performs the specified action for each element in an array.
-      * @param callbackfn  A function that accepts up to three arguments. forEach calls the callbackfn function one time for each element in the array. 
+      * @param callbackfn  A function that accepts up to three arguments. forEach calls the callbackfn function one time for each element in the array.
       * @param thisArg  An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
     forEach(callbackfn: (value: T, index: number, array: T[]) => void, thisArg?: any): void;
-
     /**
       * Calls a defined callback function on each element of an array, and returns an array that contains the results.
-      * @param callbackfn A function that accepts up to three arguments. The map method calls the callbackfn function one time for each element in the array. 
+      * @param callbackfn A function that accepts up to three arguments. The map method calls the callbackfn function one time for each element in the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
     map<U>(callbackfn: (value: T, index: number, array: T[]) => U, thisArg?: any): U[];
-
     /**
-      * Returns the elements of an array that meet the condition specified in a callback function. 
-      * @param callbackfn A function that accepts up to three arguments. The filter method calls the callbackfn function one time for each element in the array. 
+      * Returns the elements of an array that meet the condition specified in a callback function.
+      * @param callbackfn A function that accepts up to three arguments. The filter method calls the callbackfn function one time for each element in the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function. If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (value: T, index: number, array: T[]) => boolean, thisArg?: any): T[];
-
+    filter(callbackfn: (value: T, index: number, array: T[]) => any, thisArg?: any): T[];
     /**
       * Calls the specified callback function for all the elements in an array. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
       * @param callbackfn A function that accepts up to four arguments. The reduce method calls the callbackfn function one time for each element in the array.
@@ -2474,16 +1234,15 @@ interface Array<T> {
       * @param initialValue If initialValue is specified, it is used as the initial value to start the accumulation. The first call to the callbackfn function provides this value as an argument instead of an array value.
       */
     reduce<U>(callbackfn: (previousValue: U, currentValue: T, currentIndex: number, array: T[]) => U, initialValue: U): U;
-
-    /** 
+    /**
       * Calls the specified callback function for all the elements in an array, in descending order. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls the callbackfn function one time for each element in the array. 
+      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls the callbackfn function one time for each element in the array.
       * @param initialValue If initialValue is specified, it is used as the initial value to start the accumulation. The first call to the callbackfn function provides this value as an argument instead of an array value.
       */
     reduceRight(callbackfn: (previousValue: T, currentValue: T, currentIndex: number, array: T[]) => T, initialValue?: T): T;
-    /** 
+    /**
       * Calls the specified callback function for all the elements in an array, in descending order. The return value of the callback function is the accumulated result, and is provided as an argument in the next call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls the callbackfn function one time for each element in the array. 
+      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls the callbackfn function one time for each element in the array.
       * @param initialValue If initialValue is specified, it is used as the initial value to start the accumulation. The first call to the callbackfn function provides this value as an argument instead of an array value.
       */
     reduceRight<U>(callbackfn: (previousValue: U, currentValue: T, currentIndex: number, array: T[]) => U, initialValue: U): U;
@@ -2499,10 +1258,10 @@ interface ArrayConstructor {
     <T>(arrayLength: number): T[];
     <T>(...items: T[]): T[];
     isArray(arg: any): arg is Array<any>;
-    prototype: Array<any>;
+    readonly prototype: Array<any>;
 }
 
-declare var Array: ArrayConstructor;
+declare const Array: ArrayConstructor;
 
 interface TypedPropertyDescriptor<T> {
     enumerable?: boolean;
@@ -2532,22 +1291,21 @@ interface PromiseLike<T> {
 }
 
 interface ArrayLike<T> {
-    length: number;
-    [n: number]: T;
+    readonly length: number;
+    readonly [n: number]: T;
 }
 
-
 /**
-  * Represents a raw buffer of binary data, which is used to store data for the 
-  * different typed arrays. ArrayBuffers cannot be read from or written to directly, 
-  * but can be passed to a typed array or DataView Object to interpret the raw 
-  * buffer as needed. 
+  * Represents a raw buffer of binary data, which is used to store data for the
+  * different typed arrays. ArrayBuffers cannot be read from or written to directly,
+  * but can be passed to a typed array or DataView Object to interpret the raw
+  * buffer as needed.
   */
 interface ArrayBuffer {
     /**
       * Read-only. The length of the ArrayBuffer (in bytes).
       */
-    byteLength: number;
+    readonly byteLength: number;
 
     /**
       * Returns a section of an ArrayBuffer.
@@ -2556,15 +1314,15 @@ interface ArrayBuffer {
 }
 
 interface ArrayBufferConstructor {
-    prototype: ArrayBuffer;
+    readonly prototype: ArrayBuffer;
     new (byteLength: number): ArrayBuffer;
     isView(arg: any): arg is ArrayBufferView;
 }
-declare var ArrayBuffer: ArrayBufferConstructor;
+declare const ArrayBuffer: ArrayBufferConstructor;
 
 interface ArrayBufferView {
     /**
-      * The ArrayBuffer instance referenced by the array. 
+      * The ArrayBuffer instance referenced by the array.
       */
     buffer: ArrayBuffer;
 
@@ -2580,128 +1338,128 @@ interface ArrayBufferView {
 }
 
 interface DataView {
-    buffer: ArrayBuffer;
-    byteLength: number;
-    byteOffset: number;
+    readonly buffer: ArrayBuffer;
+    readonly byteLength: number;
+    readonly byteOffset: number;
     /**
-      * Gets the Float32 value at the specified byte offset from the start of the view. There is 
-      * no alignment constraint; multi-byte values may be fetched from any offset. 
+      * Gets the Float32 value at the specified byte offset from the start of the view. There is
+      * no alignment constraint; multi-byte values may be fetched from any offset.
       * @param byteOffset The place in the buffer at which the value should be retrieved.
       */
     getFloat32(byteOffset: number, littleEndian?: boolean): number;
 
     /**
       * Gets the Float64 value at the specified byte offset from the start of the view. There is
-      * no alignment constraint; multi-byte values may be fetched from any offset. 
+      * no alignment constraint; multi-byte values may be fetched from any offset.
       * @param byteOffset The place in the buffer at which the value should be retrieved.
       */
     getFloat64(byteOffset: number, littleEndian?: boolean): number;
 
     /**
-      * Gets the Int8 value at the specified byte offset from the start of the view. There is 
-      * no alignment constraint; multi-byte values may be fetched from any offset. 
+      * Gets the Int8 value at the specified byte offset from the start of the view. There is
+      * no alignment constraint; multi-byte values may be fetched from any offset.
       * @param byteOffset The place in the buffer at which the value should be retrieved.
       */
     getInt8(byteOffset: number): number;
 
     /**
-      * Gets the Int16 value at the specified byte offset from the start of the view. There is 
-      * no alignment constraint; multi-byte values may be fetched from any offset. 
+      * Gets the Int16 value at the specified byte offset from the start of the view. There is
+      * no alignment constraint; multi-byte values may be fetched from any offset.
       * @param byteOffset The place in the buffer at which the value should be retrieved.
       */
     getInt16(byteOffset: number, littleEndian?: boolean): number;
     /**
-      * Gets the Int32 value at the specified byte offset from the start of the view. There is 
-      * no alignment constraint; multi-byte values may be fetched from any offset. 
+      * Gets the Int32 value at the specified byte offset from the start of the view. There is
+      * no alignment constraint; multi-byte values may be fetched from any offset.
       * @param byteOffset The place in the buffer at which the value should be retrieved.
       */
     getInt32(byteOffset: number, littleEndian?: boolean): number;
 
     /**
-      * Gets the Uint8 value at the specified byte offset from the start of the view. There is 
-      * no alignment constraint; multi-byte values may be fetched from any offset. 
+      * Gets the Uint8 value at the specified byte offset from the start of the view. There is
+      * no alignment constraint; multi-byte values may be fetched from any offset.
       * @param byteOffset The place in the buffer at which the value should be retrieved.
       */
     getUint8(byteOffset: number): number;
 
     /**
-      * Gets the Uint16 value at the specified byte offset from the start of the view. There is 
-      * no alignment constraint; multi-byte values may be fetched from any offset. 
+      * Gets the Uint16 value at the specified byte offset from the start of the view. There is
+      * no alignment constraint; multi-byte values may be fetched from any offset.
       * @param byteOffset The place in the buffer at which the value should be retrieved.
       */
     getUint16(byteOffset: number, littleEndian?: boolean): number;
 
     /**
-      * Gets the Uint32 value at the specified byte offset from the start of the view. There is 
-      * no alignment constraint; multi-byte values may be fetched from any offset. 
+      * Gets the Uint32 value at the specified byte offset from the start of the view. There is
+      * no alignment constraint; multi-byte values may be fetched from any offset.
       * @param byteOffset The place in the buffer at which the value should be retrieved.
       */
     getUint32(byteOffset: number, littleEndian?: boolean): number;
 
     /**
-      * Stores an Float32 value at the specified byte offset from the start of the view. 
+      * Stores an Float32 value at the specified byte offset from the start of the view.
       * @param byteOffset The place in the buffer at which the value should be set.
       * @param value The value to set.
-      * @param littleEndian If false or undefined, a big-endian value should be written, 
+      * @param littleEndian If false or undefined, a big-endian value should be written,
       * otherwise a little-endian value should be written.
       */
     setFloat32(byteOffset: number, value: number, littleEndian?: boolean): void;
 
     /**
-      * Stores an Float64 value at the specified byte offset from the start of the view. 
+      * Stores an Float64 value at the specified byte offset from the start of the view.
       * @param byteOffset The place in the buffer at which the value should be set.
       * @param value The value to set.
-      * @param littleEndian If false or undefined, a big-endian value should be written, 
+      * @param littleEndian If false or undefined, a big-endian value should be written,
       * otherwise a little-endian value should be written.
       */
     setFloat64(byteOffset: number, value: number, littleEndian?: boolean): void;
 
     /**
-      * Stores an Int8 value at the specified byte offset from the start of the view. 
+      * Stores an Int8 value at the specified byte offset from the start of the view.
       * @param byteOffset The place in the buffer at which the value should be set.
       * @param value The value to set.
       */
     setInt8(byteOffset: number, value: number): void;
 
     /**
-      * Stores an Int16 value at the specified byte offset from the start of the view. 
+      * Stores an Int16 value at the specified byte offset from the start of the view.
       * @param byteOffset The place in the buffer at which the value should be set.
       * @param value The value to set.
-      * @param littleEndian If false or undefined, a big-endian value should be written, 
+      * @param littleEndian If false or undefined, a big-endian value should be written,
       * otherwise a little-endian value should be written.
       */
     setInt16(byteOffset: number, value: number, littleEndian?: boolean): void;
 
     /**
-      * Stores an Int32 value at the specified byte offset from the start of the view. 
+      * Stores an Int32 value at the specified byte offset from the start of the view.
       * @param byteOffset The place in the buffer at which the value should be set.
       * @param value The value to set.
-      * @param littleEndian If false or undefined, a big-endian value should be written, 
+      * @param littleEndian If false or undefined, a big-endian value should be written,
       * otherwise a little-endian value should be written.
       */
     setInt32(byteOffset: number, value: number, littleEndian?: boolean): void;
 
     /**
-      * Stores an Uint8 value at the specified byte offset from the start of the view. 
+      * Stores an Uint8 value at the specified byte offset from the start of the view.
       * @param byteOffset The place in the buffer at which the value should be set.
       * @param value The value to set.
       */
     setUint8(byteOffset: number, value: number): void;
 
     /**
-      * Stores an Uint16 value at the specified byte offset from the start of the view. 
+      * Stores an Uint16 value at the specified byte offset from the start of the view.
       * @param byteOffset The place in the buffer at which the value should be set.
       * @param value The value to set.
-      * @param littleEndian If false or undefined, a big-endian value should be written, 
+      * @param littleEndian If false or undefined, a big-endian value should be written,
       * otherwise a little-endian value should be written.
       */
     setUint16(byteOffset: number, value: number, littleEndian?: boolean): void;
 
     /**
-      * Stores an Uint32 value at the specified byte offset from the start of the view. 
+      * Stores an Uint32 value at the specified byte offset from the start of the view.
       * @param byteOffset The place in the buffer at which the value should be set.
       * @param value The value to set.
-      * @param littleEndian If false or undefined, a big-endian value should be written, 
+      * @param littleEndian If false or undefined, a big-endian value should be written,
       * otherwise a little-endian value should be written.
       */
     setUint32(byteOffset: number, value: number, littleEndian?: boolean): void;
@@ -2710,48 +1468,48 @@ interface DataView {
 interface DataViewConstructor {
     new (buffer: ArrayBuffer, byteOffset?: number, byteLength?: number): DataView;
 }
-declare var DataView: DataViewConstructor;
+declare const DataView: DataViewConstructor;
 
 /**
-  * A typed array of 8-bit integer values. The contents are initialized to 0. If the requested 
+  * A typed array of 8-bit integer values. The contents are initialized to 0. If the requested
   * number of bytes could not be allocated an exception is raised.
   */
 interface Int8Array {
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
-      * The ArrayBuffer instance referenced by the array. 
+      * The ArrayBuffer instance referenced by the array.
       */
-    buffer: ArrayBuffer;
+    readonly buffer: ArrayBuffer;
 
     /**
       * The length in bytes of the array.
       */
-    byteLength: number;
+    readonly byteLength: number;
 
     /**
       * The offset in bytes of the array.
       */
-    byteOffset: number;
+    readonly byteOffset: number;
 
-    /** 
+    /**
       * Returns the this object after copying a section of the array identified by start and end
       * to the same array starting at position target
-      * @param target If target is negative, it is treated as length+target where length is the 
-      * length of the array. 
-      * @param start If start is negative, it is treated as length+start. If end is negative, it 
+      * @param target If target is negative, it is treated as length+target where length is the
+      * length of the array.
+      * @param start If start is negative, it is treated as length+start. If end is negative, it
       * is treated as length+end.
-      * @param end If not specified, length of the this object is used as its default value. 
+      * @param end If not specified, length of the this object is used as its default value.
       */
-    copyWithin(target: number, start: number, end?: number): Int8Array;
+    copyWithin(target: number, start: number, end?: number): this;
 
     /**
       * Determines whether all the members of an array satisfy the specified test.
-      * @param callbackfn A function that accepts up to three arguments. The every method calls 
-      * the callbackfn function for each element in array1 until the callbackfn returns false, 
+      * @param callbackfn A function that accepts up to three arguments. The every method calls
+      * the callbackfn function for each element in array1 until the callbackfn returns false,
       * or until the end of the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
@@ -2761,49 +1519,49 @@ interface Int8Array {
     /**
         * Returns the this object after filling the section identified by start and end with value
         * @param value value to fill array section with
-        * @param start index to start filling the array at. If start is negative, it is treated as 
-        * length+start where length is the length of the array. 
-        * @param end index to stop filling the array at. If end is negative, it is treated as 
+        * @param start index to start filling the array at. If start is negative, it is treated as
+        * length+start where length is the length of the array.
+        * @param end index to stop filling the array at. If end is negative, it is treated as
         * length+end.
         */
-    fill(value: number, start?: number, end?: number): Int8Array;
+    fill(value: number, start?: number, end?: number): this;
 
     /**
-      * Returns the elements of an array that meet the condition specified in a callback function. 
-      * @param callbackfn A function that accepts up to three arguments. The filter method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * Returns the elements of an array that meet the condition specified in a callback function.
+      * @param callbackfn A function that accepts up to three arguments. The filter method calls
+      * the callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (value: number, index: number, array: Int8Array) => boolean, thisArg?: any): Int8Array;
+    filter(callbackfn: (value: number, index: number, array: Int8Array) => any, thisArg?: any): Int8Array;
 
-    /** 
-      * Returns the value of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the value of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found, find
       * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
 
-    /** 
-      * Returns the index of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the index of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
-      * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found,
+      * findIndex immediately returns that element index. Otherwise, findIndex returns -1.
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
     findIndex(predicate: (value: number) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
-      * @param callbackfn  A function that accepts up to three arguments. forEach calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg  An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn  A function that accepts up to three arguments. forEach calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     forEach(callbackfn: (value: number, index: number, array: Int8Array) => void, thisArg?: any): void;
@@ -2818,7 +1576,7 @@ interface Int8Array {
 
     /**
       * Adds all the elements of an array separated by the specified separator string.
-      * @param separator A string used to separate one element of an array from the next in the 
+      * @param separator A string used to separate one element of an array from the next in the
       * resulting String. If omitted, the array elements are separated with a comma.
       */
     join(separator?: string): string;
@@ -2826,7 +1584,7 @@ interface Int8Array {
     /**
       * Returns the index of the last occurrence of a value in an array.
       * @param searchElement The value to locate in the array.
-      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the 
+      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the
       * search starts at index 0.
       */
     lastIndexOf(searchElement: number, fromIndex?: number): number;
@@ -2834,68 +1592,68 @@ interface Int8Array {
     /**
       * The length of the array.
       */
-    length: number;
+    readonly length: number;
 
     /**
-      * Calls a defined callback function on each element of an array, and returns an array that 
+      * Calls a defined callback function on each element of an array, and returns an array that
       * contains the results.
-      * @param callbackfn A function that accepts up to three arguments. The map method calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn A function that accepts up to three arguments. The map method calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     map(callbackfn: (value: number, index: number, array: Int8Array) => number, thisArg?: any): Int8Array;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Int8Array) => number, initialValue?: number): number;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an argument 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Int8Array) => U, initialValue: U): U;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an 
+      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an
       * argument instead of an array value.
       */
     reduceRight(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Int8Array) => number, initialValue?: number): number;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
       * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduceRight<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Int8Array) => U, initialValue: U): U;
 
     /**
-      * Reverses the elements in an Array. 
+      * Reverses the elements in an Array.
       */
     reverse(): Int8Array;
 
@@ -2913,7 +1671,7 @@ interface Int8Array {
       */
     set(array: ArrayLike<number>, offset?: number): void;
 
-    /** 
+    /**
       * Returns a section of an array.
       * @param start The beginning of the specified portion of the array.
       * @param end The end of the specified portion of the array.
@@ -2922,31 +1680,31 @@ interface Int8Array {
 
     /**
       * Determines whether the specified callback function returns true for any element of an array.
-      * @param callbackfn A function that accepts up to three arguments. The some method calls the 
-      * callbackfn function for each element in array1 until the callbackfn returns true, or until 
+      * @param callbackfn A function that accepts up to three arguments. The some method calls the
+      * callbackfn function for each element in array1 until the callbackfn returns true, or until
       * the end of the array.
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     some(callbackfn: (value: number, index: number, array: Int8Array) => boolean, thisArg?: any): boolean;
 
     /**
       * Sorts an array.
-      * @param compareFn The name of the function used to determine the order of the elements. If 
+      * @param compareFn The name of the function used to determine the order of the elements. If
       * omitted, the elements are sorted in ascending, ASCII character order.
       */
-    sort(compareFn?: (a: number, b: number) => number): Int8Array;
+    sort(compareFn?: (a: number, b: number) => number): this;
 
     /**
       * Gets a new Int8Array view of the ArrayBuffer store for this array, referencing the elements
-      * at begin, inclusive, up to end, exclusive. 
+      * at begin, inclusive, up to end, exclusive.
       * @param begin The index of the beginning of the array.
       * @param end The index of the end of the array.
       */
     subarray(begin: number, end?: number): Int8Array;
 
     /**
-      * Converts a number to a string by using the current locale. 
+      * Converts a number to a string by using the current locale.
       */
     toLocaleString(): string;
 
@@ -2958,22 +1716,22 @@ interface Int8Array {
     [index: number]: number;
 }
 interface Int8ArrayConstructor {
-    prototype: Int8Array;
+    readonly prototype: Int8Array;
     new (length: number): Int8Array;
     new (array: ArrayLike<number>): Int8Array;
     new (buffer: ArrayBuffer, byteOffset?: number, length?: number): Int8Array;
 
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
       * Returns a new array from a set of elements.
       * @param items A set of elements to include in the new array object.
       */
     of(...items: number[]): Int8Array;
-    
+
     /**
       * Creates an array from an array-like or iterable object.
       * @param arrayLike An array-like or iterable object to convert to an array.
@@ -2983,48 +1741,48 @@ interface Int8ArrayConstructor {
     from(arrayLike: ArrayLike<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Int8Array;
 
 }
-declare var Int8Array: Int8ArrayConstructor;
+declare const Int8Array: Int8ArrayConstructor;
 
 /**
-  * A typed array of 8-bit unsigned integer values. The contents are initialized to 0. If the 
+  * A typed array of 8-bit unsigned integer values. The contents are initialized to 0. If the
   * requested number of bytes could not be allocated an exception is raised.
   */
 interface Uint8Array {
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
-      * The ArrayBuffer instance referenced by the array. 
+      * The ArrayBuffer instance referenced by the array.
       */
-    buffer: ArrayBuffer;
+    readonly buffer: ArrayBuffer;
 
     /**
       * The length in bytes of the array.
       */
-    byteLength: number;
+    readonly byteLength: number;
 
     /**
       * The offset in bytes of the array.
       */
-    byteOffset: number;
+    readonly byteOffset: number;
 
-    /** 
+    /**
       * Returns the this object after copying a section of the array identified by start and end
       * to the same array starting at position target
-      * @param target If target is negative, it is treated as length+target where length is the 
-      * length of the array. 
-      * @param start If start is negative, it is treated as length+start. If end is negative, it 
+      * @param target If target is negative, it is treated as length+target where length is the
+      * length of the array.
+      * @param start If start is negative, it is treated as length+start. If end is negative, it
       * is treated as length+end.
-      * @param end If not specified, length of the this object is used as its default value. 
+      * @param end If not specified, length of the this object is used as its default value.
       */
-    copyWithin(target: number, start: number, end?: number): Uint8Array;
+    copyWithin(target: number, start: number, end?: number): this;
 
     /**
       * Determines whether all the members of an array satisfy the specified test.
-      * @param callbackfn A function that accepts up to three arguments. The every method calls 
-      * the callbackfn function for each element in array1 until the callbackfn returns false, 
+      * @param callbackfn A function that accepts up to three arguments. The every method calls
+      * the callbackfn function for each element in array1 until the callbackfn returns false,
       * or until the end of the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
@@ -3034,49 +1792,49 @@ interface Uint8Array {
     /**
         * Returns the this object after filling the section identified by start and end with value
         * @param value value to fill array section with
-        * @param start index to start filling the array at. If start is negative, it is treated as 
-        * length+start where length is the length of the array. 
-        * @param end index to stop filling the array at. If end is negative, it is treated as 
+        * @param start index to start filling the array at. If start is negative, it is treated as
+        * length+start where length is the length of the array.
+        * @param end index to stop filling the array at. If end is negative, it is treated as
         * length+end.
         */
-    fill(value: number, start?: number, end?: number): Uint8Array;
+    fill(value: number, start?: number, end?: number): this;
 
     /**
-      * Returns the elements of an array that meet the condition specified in a callback function. 
-      * @param callbackfn A function that accepts up to three arguments. The filter method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * Returns the elements of an array that meet the condition specified in a callback function.
+      * @param callbackfn A function that accepts up to three arguments. The filter method calls
+      * the callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (value: number, index: number, array: Uint8Array) => boolean, thisArg?: any): Uint8Array;
+    filter(callbackfn: (value: number, index: number, array: Uint8Array) => any, thisArg?: any): Uint8Array;
 
-    /** 
-      * Returns the value of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the value of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found, find
       * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
 
-    /** 
-      * Returns the index of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the index of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
-      * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found,
+      * findIndex immediately returns that element index. Otherwise, findIndex returns -1.
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
     findIndex(predicate: (value: number) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
-      * @param callbackfn  A function that accepts up to three arguments. forEach calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg  An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn  A function that accepts up to three arguments. forEach calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     forEach(callbackfn: (value: number, index: number, array: Uint8Array) => void, thisArg?: any): void;
@@ -3091,7 +1849,7 @@ interface Uint8Array {
 
     /**
       * Adds all the elements of an array separated by the specified separator string.
-      * @param separator A string used to separate one element of an array from the next in the 
+      * @param separator A string used to separate one element of an array from the next in the
       * resulting String. If omitted, the array elements are separated with a comma.
       */
     join(separator?: string): string;
@@ -3099,7 +1857,7 @@ interface Uint8Array {
     /**
       * Returns the index of the last occurrence of a value in an array.
       * @param searchElement The value to locate in the array.
-      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the 
+      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the
       * search starts at index 0.
       */
     lastIndexOf(searchElement: number, fromIndex?: number): number;
@@ -3107,68 +1865,68 @@ interface Uint8Array {
     /**
       * The length of the array.
       */
-    length: number;
+    readonly length: number;
 
     /**
-      * Calls a defined callback function on each element of an array, and returns an array that 
+      * Calls a defined callback function on each element of an array, and returns an array that
       * contains the results.
-      * @param callbackfn A function that accepts up to three arguments. The map method calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn A function that accepts up to three arguments. The map method calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     map(callbackfn: (value: number, index: number, array: Uint8Array) => number, thisArg?: any): Uint8Array;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Uint8Array) => number, initialValue?: number): number;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an argument 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Uint8Array) => U, initialValue: U): U;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an 
+      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an
       * argument instead of an array value.
       */
     reduceRight(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Uint8Array) => number, initialValue?: number): number;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
       * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduceRight<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Uint8Array) => U, initialValue: U): U;
 
     /**
-      * Reverses the elements in an Array. 
+      * Reverses the elements in an Array.
       */
     reverse(): Uint8Array;
 
@@ -3186,7 +1944,7 @@ interface Uint8Array {
       */
     set(array: ArrayLike<number>, offset?: number): void;
 
-    /** 
+    /**
       * Returns a section of an array.
       * @param start The beginning of the specified portion of the array.
       * @param end The end of the specified portion of the array.
@@ -3195,31 +1953,31 @@ interface Uint8Array {
 
     /**
       * Determines whether the specified callback function returns true for any element of an array.
-      * @param callbackfn A function that accepts up to three arguments. The some method calls the 
-      * callbackfn function for each element in array1 until the callbackfn returns true, or until 
+      * @param callbackfn A function that accepts up to three arguments. The some method calls the
+      * callbackfn function for each element in array1 until the callbackfn returns true, or until
       * the end of the array.
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     some(callbackfn: (value: number, index: number, array: Uint8Array) => boolean, thisArg?: any): boolean;
 
     /**
       * Sorts an array.
-      * @param compareFn The name of the function used to determine the order of the elements. If 
+      * @param compareFn The name of the function used to determine the order of the elements. If
       * omitted, the elements are sorted in ascending, ASCII character order.
       */
-    sort(compareFn?: (a: number, b: number) => number): Uint8Array;
+    sort(compareFn?: (a: number, b: number) => number): this;
 
     /**
       * Gets a new Uint8Array view of the ArrayBuffer store for this array, referencing the elements
-      * at begin, inclusive, up to end, exclusive. 
+      * at begin, inclusive, up to end, exclusive.
       * @param begin The index of the beginning of the array.
       * @param end The index of the end of the array.
       */
     subarray(begin: number, end?: number): Uint8Array;
 
     /**
-      * Converts a number to a string by using the current locale. 
+      * Converts a number to a string by using the current locale.
       */
     toLocaleString(): string;
 
@@ -3232,22 +1990,22 @@ interface Uint8Array {
 }
 
 interface Uint8ArrayConstructor {
-    prototype: Uint8Array;
+    readonly prototype: Uint8Array;
     new (length: number): Uint8Array;
     new (array: ArrayLike<number>): Uint8Array;
     new (buffer: ArrayBuffer, byteOffset?: number, length?: number): Uint8Array;
 
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
       * Returns a new array from a set of elements.
       * @param items A set of elements to include in the new array object.
       */
     of(...items: number[]): Uint8Array;
-    
+
     /**
       * Creates an array from an array-like or iterable object.
       * @param arrayLike An array-like or iterable object to convert to an array.
@@ -3257,48 +2015,48 @@ interface Uint8ArrayConstructor {
     from(arrayLike: ArrayLike<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Uint8Array;
 
 }
-declare var Uint8Array: Uint8ArrayConstructor;
+declare const Uint8Array: Uint8ArrayConstructor;
 
 /**
-  * A typed array of 8-bit unsigned integer (clamped) values. The contents are initialized to 0. 
+  * A typed array of 8-bit unsigned integer (clamped) values. The contents are initialized to 0.
   * If the requested number of bytes could not be allocated an exception is raised.
   */
 interface Uint8ClampedArray {
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
-      * The ArrayBuffer instance referenced by the array. 
+      * The ArrayBuffer instance referenced by the array.
       */
-    buffer: ArrayBuffer;
+    readonly buffer: ArrayBuffer;
 
     /**
       * The length in bytes of the array.
       */
-    byteLength: number;
+    readonly byteLength: number;
 
     /**
       * The offset in bytes of the array.
       */
-    byteOffset: number;
+    readonly byteOffset: number;
 
-    /** 
+    /**
       * Returns the this object after copying a section of the array identified by start and end
       * to the same array starting at position target
-      * @param target If target is negative, it is treated as length+target where length is the 
-      * length of the array. 
-      * @param start If start is negative, it is treated as length+start. If end is negative, it 
+      * @param target If target is negative, it is treated as length+target where length is the
+      * length of the array.
+      * @param start If start is negative, it is treated as length+start. If end is negative, it
       * is treated as length+end.
-      * @param end If not specified, length of the this object is used as its default value. 
+      * @param end If not specified, length of the this object is used as its default value.
       */
-    copyWithin(target: number, start: number, end?: number): Uint8ClampedArray;
+    copyWithin(target: number, start: number, end?: number): this;
 
     /**
       * Determines whether all the members of an array satisfy the specified test.
-      * @param callbackfn A function that accepts up to three arguments. The every method calls 
-      * the callbackfn function for each element in array1 until the callbackfn returns false, 
+      * @param callbackfn A function that accepts up to three arguments. The every method calls
+      * the callbackfn function for each element in array1 until the callbackfn returns false,
       * or until the end of the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
@@ -3308,49 +2066,49 @@ interface Uint8ClampedArray {
     /**
         * Returns the this object after filling the section identified by start and end with value
         * @param value value to fill array section with
-        * @param start index to start filling the array at. If start is negative, it is treated as 
-        * length+start where length is the length of the array. 
-        * @param end index to stop filling the array at. If end is negative, it is treated as 
+        * @param start index to start filling the array at. If start is negative, it is treated as
+        * length+start where length is the length of the array.
+        * @param end index to stop filling the array at. If end is negative, it is treated as
         * length+end.
         */
-    fill(value: number, start?: number, end?: number): Uint8ClampedArray;
+    fill(value: number, start?: number, end?: number): this;
 
     /**
-      * Returns the elements of an array that meet the condition specified in a callback function. 
-      * @param callbackfn A function that accepts up to three arguments. The filter method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * Returns the elements of an array that meet the condition specified in a callback function.
+      * @param callbackfn A function that accepts up to three arguments. The filter method calls
+      * the callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (value: number, index: number, array: Uint8ClampedArray) => boolean, thisArg?: any): Uint8ClampedArray;
+    filter(callbackfn: (value: number, index: number, array: Uint8ClampedArray) => any, thisArg?: any): Uint8ClampedArray;
 
-    /** 
-      * Returns the value of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the value of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found, find
       * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
 
-    /** 
-      * Returns the index of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the index of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
-      * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found,
+      * findIndex immediately returns that element index. Otherwise, findIndex returns -1.
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
     findIndex(predicate: (value: number) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
-      * @param callbackfn  A function that accepts up to three arguments. forEach calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg  An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn  A function that accepts up to three arguments. forEach calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     forEach(callbackfn: (value: number, index: number, array: Uint8ClampedArray) => void, thisArg?: any): void;
@@ -3365,7 +2123,7 @@ interface Uint8ClampedArray {
 
     /**
       * Adds all the elements of an array separated by the specified separator string.
-      * @param separator A string used to separate one element of an array from the next in the 
+      * @param separator A string used to separate one element of an array from the next in the
       * resulting String. If omitted, the array elements are separated with a comma.
       */
     join(separator?: string): string;
@@ -3373,7 +2131,7 @@ interface Uint8ClampedArray {
     /**
       * Returns the index of the last occurrence of a value in an array.
       * @param searchElement The value to locate in the array.
-      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the 
+      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the
       * search starts at index 0.
       */
     lastIndexOf(searchElement: number, fromIndex?: number): number;
@@ -3381,68 +2139,68 @@ interface Uint8ClampedArray {
     /**
       * The length of the array.
       */
-    length: number;
+    readonly length: number;
 
     /**
-      * Calls a defined callback function on each element of an array, and returns an array that 
+      * Calls a defined callback function on each element of an array, and returns an array that
       * contains the results.
-      * @param callbackfn A function that accepts up to three arguments. The map method calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn A function that accepts up to three arguments. The map method calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     map(callbackfn: (value: number, index: number, array: Uint8ClampedArray) => number, thisArg?: any): Uint8ClampedArray;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Uint8ClampedArray) => number, initialValue?: number): number;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an argument 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Uint8ClampedArray) => U, initialValue: U): U;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an 
+      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an
       * argument instead of an array value.
       */
     reduceRight(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Uint8ClampedArray) => number, initialValue?: number): number;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
       * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduceRight<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Uint8ClampedArray) => U, initialValue: U): U;
 
     /**
-      * Reverses the elements in an Array. 
+      * Reverses the elements in an Array.
       */
     reverse(): Uint8ClampedArray;
 
@@ -3460,7 +2218,7 @@ interface Uint8ClampedArray {
       */
     set(array: Uint8ClampedArray, offset?: number): void;
 
-    /** 
+    /**
       * Returns a section of an array.
       * @param start The beginning of the specified portion of the array.
       * @param end The end of the specified portion of the array.
@@ -3469,31 +2227,31 @@ interface Uint8ClampedArray {
 
     /**
       * Determines whether the specified callback function returns true for any element of an array.
-      * @param callbackfn A function that accepts up to three arguments. The some method calls the 
-      * callbackfn function for each element in array1 until the callbackfn returns true, or until 
+      * @param callbackfn A function that accepts up to three arguments. The some method calls the
+      * callbackfn function for each element in array1 until the callbackfn returns true, or until
       * the end of the array.
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     some(callbackfn: (value: number, index: number, array: Uint8ClampedArray) => boolean, thisArg?: any): boolean;
 
     /**
       * Sorts an array.
-      * @param compareFn The name of the function used to determine the order of the elements. If 
+      * @param compareFn The name of the function used to determine the order of the elements. If
       * omitted, the elements are sorted in ascending, ASCII character order.
       */
-    sort(compareFn?: (a: number, b: number) => number): Uint8ClampedArray;
+    sort(compareFn?: (a: number, b: number) => number): this;
 
     /**
       * Gets a new Uint8ClampedArray view of the ArrayBuffer store for this array, referencing the elements
-      * at begin, inclusive, up to end, exclusive. 
+      * at begin, inclusive, up to end, exclusive.
       * @param begin The index of the beginning of the array.
       * @param end The index of the end of the array.
       */
     subarray(begin: number, end?: number): Uint8ClampedArray;
 
     /**
-      * Converts a number to a string by using the current locale. 
+      * Converts a number to a string by using the current locale.
       */
     toLocaleString(): string;
 
@@ -3506,15 +2264,15 @@ interface Uint8ClampedArray {
 }
 
 interface Uint8ClampedArrayConstructor {
-    prototype: Uint8ClampedArray;
+    readonly prototype: Uint8ClampedArray;
     new (length: number): Uint8ClampedArray;
     new (array: ArrayLike<number>): Uint8ClampedArray;
     new (buffer: ArrayBuffer, byteOffset?: number, length?: number): Uint8ClampedArray;
 
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
       * Returns a new array from a set of elements.
@@ -3530,48 +2288,48 @@ interface Uint8ClampedArrayConstructor {
       */
     from(arrayLike: ArrayLike<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Uint8ClampedArray;
 }
-declare var Uint8ClampedArray: Uint8ClampedArrayConstructor;
+declare const Uint8ClampedArray: Uint8ClampedArrayConstructor;
 
 /**
-  * A typed array of 16-bit signed integer values. The contents are initialized to 0. If the 
+  * A typed array of 16-bit signed integer values. The contents are initialized to 0. If the
   * requested number of bytes could not be allocated an exception is raised.
   */
 interface Int16Array {
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
-      * The ArrayBuffer instance referenced by the array. 
+      * The ArrayBuffer instance referenced by the array.
       */
-    buffer: ArrayBuffer;
+    readonly buffer: ArrayBuffer;
 
     /**
       * The length in bytes of the array.
       */
-    byteLength: number;
+    readonly byteLength: number;
 
     /**
       * The offset in bytes of the array.
       */
-    byteOffset: number;
+    readonly byteOffset: number;
 
-    /** 
+    /**
       * Returns the this object after copying a section of the array identified by start and end
       * to the same array starting at position target
-      * @param target If target is negative, it is treated as length+target where length is the 
-      * length of the array. 
-      * @param start If start is negative, it is treated as length+start. If end is negative, it 
+      * @param target If target is negative, it is treated as length+target where length is the
+      * length of the array.
+      * @param start If start is negative, it is treated as length+start. If end is negative, it
       * is treated as length+end.
-      * @param end If not specified, length of the this object is used as its default value. 
+      * @param end If not specified, length of the this object is used as its default value.
       */
-    copyWithin(target: number, start: number, end?: number): Int16Array;
+    copyWithin(target: number, start: number, end?: number): this;
 
     /**
       * Determines whether all the members of an array satisfy the specified test.
-      * @param callbackfn A function that accepts up to three arguments. The every method calls 
-      * the callbackfn function for each element in array1 until the callbackfn returns false, 
+      * @param callbackfn A function that accepts up to three arguments. The every method calls
+      * the callbackfn function for each element in array1 until the callbackfn returns false,
       * or until the end of the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
@@ -3581,49 +2339,49 @@ interface Int16Array {
     /**
         * Returns the this object after filling the section identified by start and end with value
         * @param value value to fill array section with
-        * @param start index to start filling the array at. If start is negative, it is treated as 
-        * length+start where length is the length of the array. 
-        * @param end index to stop filling the array at. If end is negative, it is treated as 
+        * @param start index to start filling the array at. If start is negative, it is treated as
+        * length+start where length is the length of the array.
+        * @param end index to stop filling the array at. If end is negative, it is treated as
         * length+end.
         */
-    fill(value: number, start?: number, end?: number): Int16Array;
+    fill(value: number, start?: number, end?: number): this;
 
     /**
-      * Returns the elements of an array that meet the condition specified in a callback function. 
-      * @param callbackfn A function that accepts up to three arguments. The filter method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * Returns the elements of an array that meet the condition specified in a callback function.
+      * @param callbackfn A function that accepts up to three arguments. The filter method calls
+      * the callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (value: number, index: number, array: Int16Array) => boolean, thisArg?: any): Int16Array;
+    filter(callbackfn: (value: number, index: number, array: Int16Array) => any, thisArg?: any): Int16Array;
 
-    /** 
-      * Returns the value of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the value of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found, find
       * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
 
-    /** 
-      * Returns the index of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the index of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
-      * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found,
+      * findIndex immediately returns that element index. Otherwise, findIndex returns -1.
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
     findIndex(predicate: (value: number) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
-      * @param callbackfn  A function that accepts up to three arguments. forEach calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg  An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn  A function that accepts up to three arguments. forEach calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     forEach(callbackfn: (value: number, index: number, array: Int16Array) => void, thisArg?: any): void;
@@ -3638,7 +2396,7 @@ interface Int16Array {
 
     /**
       * Adds all the elements of an array separated by the specified separator string.
-      * @param separator A string used to separate one element of an array from the next in the 
+      * @param separator A string used to separate one element of an array from the next in the
       * resulting String. If omitted, the array elements are separated with a comma.
       */
     join(separator?: string): string;
@@ -3646,7 +2404,7 @@ interface Int16Array {
     /**
       * Returns the index of the last occurrence of a value in an array.
       * @param searchElement The value to locate in the array.
-      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the 
+      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the
       * search starts at index 0.
       */
     lastIndexOf(searchElement: number, fromIndex?: number): number;
@@ -3654,68 +2412,68 @@ interface Int16Array {
     /**
       * The length of the array.
       */
-    length: number;
+    readonly length: number;
 
     /**
-      * Calls a defined callback function on each element of an array, and returns an array that 
+      * Calls a defined callback function on each element of an array, and returns an array that
       * contains the results.
-      * @param callbackfn A function that accepts up to three arguments. The map method calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn A function that accepts up to three arguments. The map method calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     map(callbackfn: (value: number, index: number, array: Int16Array) => number, thisArg?: any): Int16Array;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Int16Array) => number, initialValue?: number): number;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an argument 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Int16Array) => U, initialValue: U): U;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an 
+      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an
       * argument instead of an array value.
       */
     reduceRight(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Int16Array) => number, initialValue?: number): number;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
       * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduceRight<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Int16Array) => U, initialValue: U): U;
 
     /**
-      * Reverses the elements in an Array. 
+      * Reverses the elements in an Array.
       */
     reverse(): Int16Array;
 
@@ -3733,7 +2491,7 @@ interface Int16Array {
       */
     set(array: ArrayLike<number>, offset?: number): void;
 
-    /** 
+    /**
       * Returns a section of an array.
       * @param start The beginning of the specified portion of the array.
       * @param end The end of the specified portion of the array.
@@ -3742,31 +2500,31 @@ interface Int16Array {
 
     /**
       * Determines whether the specified callback function returns true for any element of an array.
-      * @param callbackfn A function that accepts up to three arguments. The some method calls the 
-      * callbackfn function for each element in array1 until the callbackfn returns true, or until 
+      * @param callbackfn A function that accepts up to three arguments. The some method calls the
+      * callbackfn function for each element in array1 until the callbackfn returns true, or until
       * the end of the array.
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     some(callbackfn: (value: number, index: number, array: Int16Array) => boolean, thisArg?: any): boolean;
 
     /**
       * Sorts an array.
-      * @param compareFn The name of the function used to determine the order of the elements. If 
+      * @param compareFn The name of the function used to determine the order of the elements. If
       * omitted, the elements are sorted in ascending, ASCII character order.
       */
-    sort(compareFn?: (a: number, b: number) => number): Int16Array;
+    sort(compareFn?: (a: number, b: number) => number): this;
 
     /**
       * Gets a new Int16Array view of the ArrayBuffer store for this array, referencing the elements
-      * at begin, inclusive, up to end, exclusive. 
+      * at begin, inclusive, up to end, exclusive.
       * @param begin The index of the beginning of the array.
       * @param end The index of the end of the array.
       */
     subarray(begin: number, end?: number): Int16Array;
 
     /**
-      * Converts a number to a string by using the current locale. 
+      * Converts a number to a string by using the current locale.
       */
     toLocaleString(): string;
 
@@ -3779,22 +2537,22 @@ interface Int16Array {
 }
 
 interface Int16ArrayConstructor {
-    prototype: Int16Array;
+    readonly prototype: Int16Array;
     new (length: number): Int16Array;
     new (array: ArrayLike<number>): Int16Array;
     new (buffer: ArrayBuffer, byteOffset?: number, length?: number): Int16Array;
 
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
       * Returns a new array from a set of elements.
       * @param items A set of elements to include in the new array object.
       */
     of(...items: number[]): Int16Array;
-    
+
     /**
       * Creates an array from an array-like or iterable object.
       * @param arrayLike An array-like or iterable object to convert to an array.
@@ -3804,48 +2562,48 @@ interface Int16ArrayConstructor {
     from(arrayLike: ArrayLike<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Int16Array;
 
 }
-declare var Int16Array: Int16ArrayConstructor;
+declare const Int16Array: Int16ArrayConstructor;
 
 /**
-  * A typed array of 16-bit unsigned integer values. The contents are initialized to 0. If the 
+  * A typed array of 16-bit unsigned integer values. The contents are initialized to 0. If the
   * requested number of bytes could not be allocated an exception is raised.
   */
 interface Uint16Array {
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
-      * The ArrayBuffer instance referenced by the array. 
+      * The ArrayBuffer instance referenced by the array.
       */
-    buffer: ArrayBuffer;
+    readonly buffer: ArrayBuffer;
 
     /**
       * The length in bytes of the array.
       */
-    byteLength: number;
+    readonly byteLength: number;
 
     /**
       * The offset in bytes of the array.
       */
-    byteOffset: number;
+    readonly byteOffset: number;
 
-    /** 
+    /**
       * Returns the this object after copying a section of the array identified by start and end
       * to the same array starting at position target
-      * @param target If target is negative, it is treated as length+target where length is the 
-      * length of the array. 
-      * @param start If start is negative, it is treated as length+start. If end is negative, it 
+      * @param target If target is negative, it is treated as length+target where length is the
+      * length of the array.
+      * @param start If start is negative, it is treated as length+start. If end is negative, it
       * is treated as length+end.
-      * @param end If not specified, length of the this object is used as its default value. 
+      * @param end If not specified, length of the this object is used as its default value.
       */
-    copyWithin(target: number, start: number, end?: number): Uint16Array;
+    copyWithin(target: number, start: number, end?: number): this;
 
     /**
       * Determines whether all the members of an array satisfy the specified test.
-      * @param callbackfn A function that accepts up to three arguments. The every method calls 
-      * the callbackfn function for each element in array1 until the callbackfn returns false, 
+      * @param callbackfn A function that accepts up to three arguments. The every method calls
+      * the callbackfn function for each element in array1 until the callbackfn returns false,
       * or until the end of the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
@@ -3855,49 +2613,49 @@ interface Uint16Array {
     /**
         * Returns the this object after filling the section identified by start and end with value
         * @param value value to fill array section with
-        * @param start index to start filling the array at. If start is negative, it is treated as 
-        * length+start where length is the length of the array. 
-        * @param end index to stop filling the array at. If end is negative, it is treated as 
+        * @param start index to start filling the array at. If start is negative, it is treated as
+        * length+start where length is the length of the array.
+        * @param end index to stop filling the array at. If end is negative, it is treated as
         * length+end.
         */
-    fill(value: number, start?: number, end?: number): Uint16Array;
+    fill(value: number, start?: number, end?: number): this;
 
     /**
-      * Returns the elements of an array that meet the condition specified in a callback function. 
-      * @param callbackfn A function that accepts up to three arguments. The filter method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * Returns the elements of an array that meet the condition specified in a callback function.
+      * @param callbackfn A function that accepts up to three arguments. The filter method calls
+      * the callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (value: number, index: number, array: Uint16Array) => boolean, thisArg?: any): Uint16Array;
+    filter(callbackfn: (value: number, index: number, array: Uint16Array) => any, thisArg?: any): Uint16Array;
 
-    /** 
-      * Returns the value of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the value of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found, find
       * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
 
-    /** 
-      * Returns the index of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the index of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
-      * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found,
+      * findIndex immediately returns that element index. Otherwise, findIndex returns -1.
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
     findIndex(predicate: (value: number) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
-      * @param callbackfn  A function that accepts up to three arguments. forEach calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg  An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn  A function that accepts up to three arguments. forEach calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     forEach(callbackfn: (value: number, index: number, array: Uint16Array) => void, thisArg?: any): void;
@@ -3912,7 +2670,7 @@ interface Uint16Array {
 
     /**
       * Adds all the elements of an array separated by the specified separator string.
-      * @param separator A string used to separate one element of an array from the next in the 
+      * @param separator A string used to separate one element of an array from the next in the
       * resulting String. If omitted, the array elements are separated with a comma.
       */
     join(separator?: string): string;
@@ -3920,7 +2678,7 @@ interface Uint16Array {
     /**
       * Returns the index of the last occurrence of a value in an array.
       * @param searchElement The value to locate in the array.
-      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the 
+      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the
       * search starts at index 0.
       */
     lastIndexOf(searchElement: number, fromIndex?: number): number;
@@ -3928,68 +2686,68 @@ interface Uint16Array {
     /**
       * The length of the array.
       */
-    length: number;
+    readonly length: number;
 
     /**
-      * Calls a defined callback function on each element of an array, and returns an array that 
+      * Calls a defined callback function on each element of an array, and returns an array that
       * contains the results.
-      * @param callbackfn A function that accepts up to three arguments. The map method calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn A function that accepts up to three arguments. The map method calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     map(callbackfn: (value: number, index: number, array: Uint16Array) => number, thisArg?: any): Uint16Array;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Uint16Array) => number, initialValue?: number): number;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an argument 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Uint16Array) => U, initialValue: U): U;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an 
+      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an
       * argument instead of an array value.
       */
     reduceRight(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Uint16Array) => number, initialValue?: number): number;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
       * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduceRight<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Uint16Array) => U, initialValue: U): U;
 
     /**
-      * Reverses the elements in an Array. 
+      * Reverses the elements in an Array.
       */
     reverse(): Uint16Array;
 
@@ -4007,7 +2765,7 @@ interface Uint16Array {
       */
     set(array: ArrayLike<number>, offset?: number): void;
 
-    /** 
+    /**
       * Returns a section of an array.
       * @param start The beginning of the specified portion of the array.
       * @param end The end of the specified portion of the array.
@@ -4016,31 +2774,31 @@ interface Uint16Array {
 
     /**
       * Determines whether the specified callback function returns true for any element of an array.
-      * @param callbackfn A function that accepts up to three arguments. The some method calls the 
-      * callbackfn function for each element in array1 until the callbackfn returns true, or until 
+      * @param callbackfn A function that accepts up to three arguments. The some method calls the
+      * callbackfn function for each element in array1 until the callbackfn returns true, or until
       * the end of the array.
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     some(callbackfn: (value: number, index: number, array: Uint16Array) => boolean, thisArg?: any): boolean;
 
     /**
       * Sorts an array.
-      * @param compareFn The name of the function used to determine the order of the elements. If 
+      * @param compareFn The name of the function used to determine the order of the elements. If
       * omitted, the elements are sorted in ascending, ASCII character order.
       */
-    sort(compareFn?: (a: number, b: number) => number): Uint16Array;
+    sort(compareFn?: (a: number, b: number) => number): this;
 
     /**
       * Gets a new Uint16Array view of the ArrayBuffer store for this array, referencing the elements
-      * at begin, inclusive, up to end, exclusive. 
+      * at begin, inclusive, up to end, exclusive.
       * @param begin The index of the beginning of the array.
       * @param end The index of the end of the array.
       */
     subarray(begin: number, end?: number): Uint16Array;
 
     /**
-      * Converts a number to a string by using the current locale. 
+      * Converts a number to a string by using the current locale.
       */
     toLocaleString(): string;
 
@@ -4053,22 +2811,22 @@ interface Uint16Array {
 }
 
 interface Uint16ArrayConstructor {
-    prototype: Uint16Array;
+    readonly prototype: Uint16Array;
     new (length: number): Uint16Array;
     new (array: ArrayLike<number>): Uint16Array;
     new (buffer: ArrayBuffer, byteOffset?: number, length?: number): Uint16Array;
 
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
       * Returns a new array from a set of elements.
       * @param items A set of elements to include in the new array object.
       */
     of(...items: number[]): Uint16Array;
-    
+
     /**
       * Creates an array from an array-like or iterable object.
       * @param arrayLike An array-like or iterable object to convert to an array.
@@ -4078,47 +2836,47 @@ interface Uint16ArrayConstructor {
     from(arrayLike: ArrayLike<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Uint16Array;
 
 }
-declare var Uint16Array: Uint16ArrayConstructor;
+declare const Uint16Array: Uint16ArrayConstructor;
 /**
-  * A typed array of 32-bit signed integer values. The contents are initialized to 0. If the 
+  * A typed array of 32-bit signed integer values. The contents are initialized to 0. If the
   * requested number of bytes could not be allocated an exception is raised.
   */
 interface Int32Array {
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
-      * The ArrayBuffer instance referenced by the array. 
+      * The ArrayBuffer instance referenced by the array.
       */
-    buffer: ArrayBuffer;
+    readonly buffer: ArrayBuffer;
 
     /**
       * The length in bytes of the array.
       */
-    byteLength: number;
+    readonly byteLength: number;
 
     /**
       * The offset in bytes of the array.
       */
-    byteOffset: number;
+    readonly byteOffset: number;
 
-    /** 
+    /**
       * Returns the this object after copying a section of the array identified by start and end
       * to the same array starting at position target
-      * @param target If target is negative, it is treated as length+target where length is the 
-      * length of the array. 
-      * @param start If start is negative, it is treated as length+start. If end is negative, it 
+      * @param target If target is negative, it is treated as length+target where length is the
+      * length of the array.
+      * @param start If start is negative, it is treated as length+start. If end is negative, it
       * is treated as length+end.
-      * @param end If not specified, length of the this object is used as its default value. 
+      * @param end If not specified, length of the this object is used as its default value.
       */
-    copyWithin(target: number, start: number, end?: number): Int32Array;
+    copyWithin(target: number, start: number, end?: number): this;
 
     /**
       * Determines whether all the members of an array satisfy the specified test.
-      * @param callbackfn A function that accepts up to three arguments. The every method calls 
-      * the callbackfn function for each element in array1 until the callbackfn returns false, 
+      * @param callbackfn A function that accepts up to three arguments. The every method calls
+      * the callbackfn function for each element in array1 until the callbackfn returns false,
       * or until the end of the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
@@ -4128,49 +2886,49 @@ interface Int32Array {
     /**
         * Returns the this object after filling the section identified by start and end with value
         * @param value value to fill array section with
-        * @param start index to start filling the array at. If start is negative, it is treated as 
-        * length+start where length is the length of the array. 
-        * @param end index to stop filling the array at. If end is negative, it is treated as 
+        * @param start index to start filling the array at. If start is negative, it is treated as
+        * length+start where length is the length of the array.
+        * @param end index to stop filling the array at. If end is negative, it is treated as
         * length+end.
         */
-    fill(value: number, start?: number, end?: number): Int32Array;
+    fill(value: number, start?: number, end?: number): this;
 
     /**
-      * Returns the elements of an array that meet the condition specified in a callback function. 
-      * @param callbackfn A function that accepts up to three arguments. The filter method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * Returns the elements of an array that meet the condition specified in a callback function.
+      * @param callbackfn A function that accepts up to three arguments. The filter method calls
+      * the callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (value: number, index: number, array: Int32Array) => boolean, thisArg?: any): Int32Array;
+    filter(callbackfn: (value: number, index: number, array: Int32Array) => any, thisArg?: any): Int32Array;
 
-    /** 
-      * Returns the value of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the value of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found, find
       * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
 
-    /** 
-      * Returns the index of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the index of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
-      * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found,
+      * findIndex immediately returns that element index. Otherwise, findIndex returns -1.
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
     findIndex(predicate: (value: number) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
-      * @param callbackfn  A function that accepts up to three arguments. forEach calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg  An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn  A function that accepts up to three arguments. forEach calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     forEach(callbackfn: (value: number, index: number, array: Int32Array) => void, thisArg?: any): void;
@@ -4185,7 +2943,7 @@ interface Int32Array {
 
     /**
       * Adds all the elements of an array separated by the specified separator string.
-      * @param separator A string used to separate one element of an array from the next in the 
+      * @param separator A string used to separate one element of an array from the next in the
       * resulting String. If omitted, the array elements are separated with a comma.
       */
     join(separator?: string): string;
@@ -4193,7 +2951,7 @@ interface Int32Array {
     /**
       * Returns the index of the last occurrence of a value in an array.
       * @param searchElement The value to locate in the array.
-      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the 
+      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the
       * search starts at index 0.
       */
     lastIndexOf(searchElement: number, fromIndex?: number): number;
@@ -4201,68 +2959,68 @@ interface Int32Array {
     /**
       * The length of the array.
       */
-    length: number;
+    readonly length: number;
 
     /**
-      * Calls a defined callback function on each element of an array, and returns an array that 
+      * Calls a defined callback function on each element of an array, and returns an array that
       * contains the results.
-      * @param callbackfn A function that accepts up to three arguments. The map method calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn A function that accepts up to three arguments. The map method calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     map(callbackfn: (value: number, index: number, array: Int32Array) => number, thisArg?: any): Int32Array;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Int32Array) => number, initialValue?: number): number;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an argument 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Int32Array) => U, initialValue: U): U;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an 
+      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an
       * argument instead of an array value.
       */
     reduceRight(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Int32Array) => number, initialValue?: number): number;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
       * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduceRight<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Int32Array) => U, initialValue: U): U;
 
     /**
-      * Reverses the elements in an Array. 
+      * Reverses the elements in an Array.
       */
     reverse(): Int32Array;
 
@@ -4280,7 +3038,7 @@ interface Int32Array {
       */
     set(array: ArrayLike<number>, offset?: number): void;
 
-    /** 
+    /**
       * Returns a section of an array.
       * @param start The beginning of the specified portion of the array.
       * @param end The end of the specified portion of the array.
@@ -4289,31 +3047,31 @@ interface Int32Array {
 
     /**
       * Determines whether the specified callback function returns true for any element of an array.
-      * @param callbackfn A function that accepts up to three arguments. The some method calls the 
-      * callbackfn function for each element in array1 until the callbackfn returns true, or until 
+      * @param callbackfn A function that accepts up to three arguments. The some method calls the
+      * callbackfn function for each element in array1 until the callbackfn returns true, or until
       * the end of the array.
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     some(callbackfn: (value: number, index: number, array: Int32Array) => boolean, thisArg?: any): boolean;
 
     /**
       * Sorts an array.
-      * @param compareFn The name of the function used to determine the order of the elements. If 
+      * @param compareFn The name of the function used to determine the order of the elements. If
       * omitted, the elements are sorted in ascending, ASCII character order.
       */
-    sort(compareFn?: (a: number, b: number) => number): Int32Array;
+    sort(compareFn?: (a: number, b: number) => number): this;
 
     /**
       * Gets a new Int32Array view of the ArrayBuffer store for this array, referencing the elements
-      * at begin, inclusive, up to end, exclusive. 
+      * at begin, inclusive, up to end, exclusive.
       * @param begin The index of the beginning of the array.
       * @param end The index of the end of the array.
       */
     subarray(begin: number, end?: number): Int32Array;
 
     /**
-      * Converts a number to a string by using the current locale. 
+      * Converts a number to a string by using the current locale.
       */
     toLocaleString(): string;
 
@@ -4326,22 +3084,22 @@ interface Int32Array {
 }
 
 interface Int32ArrayConstructor {
-    prototype: Int32Array;
+    readonly prototype: Int32Array;
     new (length: number): Int32Array;
     new (array: ArrayLike<number>): Int32Array;
     new (buffer: ArrayBuffer, byteOffset?: number, length?: number): Int32Array;
 
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
       * Returns a new array from a set of elements.
       * @param items A set of elements to include in the new array object.
       */
     of(...items: number[]): Int32Array;
-    
+
     /**
       * Creates an array from an array-like or iterable object.
       * @param arrayLike An array-like or iterable object to convert to an array.
@@ -4350,48 +3108,48 @@ interface Int32ArrayConstructor {
       */
     from(arrayLike: ArrayLike<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Int32Array;
 }
-declare var Int32Array: Int32ArrayConstructor;
+declare const Int32Array: Int32ArrayConstructor;
 
 /**
-  * A typed array of 32-bit unsigned integer values. The contents are initialized to 0. If the 
+  * A typed array of 32-bit unsigned integer values. The contents are initialized to 0. If the
   * requested number of bytes could not be allocated an exception is raised.
   */
 interface Uint32Array {
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
-      * The ArrayBuffer instance referenced by the array. 
+      * The ArrayBuffer instance referenced by the array.
       */
-    buffer: ArrayBuffer;
+    readonly buffer: ArrayBuffer;
 
     /**
       * The length in bytes of the array.
       */
-    byteLength: number;
+    readonly byteLength: number;
 
     /**
       * The offset in bytes of the array.
       */
-    byteOffset: number;
+    readonly byteOffset: number;
 
-    /** 
+    /**
       * Returns the this object after copying a section of the array identified by start and end
       * to the same array starting at position target
-      * @param target If target is negative, it is treated as length+target where length is the 
-      * length of the array. 
-      * @param start If start is negative, it is treated as length+start. If end is negative, it 
+      * @param target If target is negative, it is treated as length+target where length is the
+      * length of the array.
+      * @param start If start is negative, it is treated as length+start. If end is negative, it
       * is treated as length+end.
-      * @param end If not specified, length of the this object is used as its default value. 
+      * @param end If not specified, length of the this object is used as its default value.
       */
-    copyWithin(target: number, start: number, end?: number): Uint32Array;
+    copyWithin(target: number, start: number, end?: number): this;
 
     /**
       * Determines whether all the members of an array satisfy the specified test.
-      * @param callbackfn A function that accepts up to three arguments. The every method calls 
-      * the callbackfn function for each element in array1 until the callbackfn returns false, 
+      * @param callbackfn A function that accepts up to three arguments. The every method calls
+      * the callbackfn function for each element in array1 until the callbackfn returns false,
       * or until the end of the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
@@ -4401,49 +3159,49 @@ interface Uint32Array {
     /**
         * Returns the this object after filling the section identified by start and end with value
         * @param value value to fill array section with
-        * @param start index to start filling the array at. If start is negative, it is treated as 
-        * length+start where length is the length of the array. 
-        * @param end index to stop filling the array at. If end is negative, it is treated as 
+        * @param start index to start filling the array at. If start is negative, it is treated as
+        * length+start where length is the length of the array.
+        * @param end index to stop filling the array at. If end is negative, it is treated as
         * length+end.
         */
-    fill(value: number, start?: number, end?: number): Uint32Array;
+    fill(value: number, start?: number, end?: number): this;
 
     /**
-      * Returns the elements of an array that meet the condition specified in a callback function. 
-      * @param callbackfn A function that accepts up to three arguments. The filter method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * Returns the elements of an array that meet the condition specified in a callback function.
+      * @param callbackfn A function that accepts up to three arguments. The filter method calls
+      * the callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (value: number, index: number, array: Uint32Array) => boolean, thisArg?: any): Uint32Array;
+    filter(callbackfn: (value: number, index: number, array: Uint32Array) => any, thisArg?: any): Uint32Array;
 
-    /** 
-      * Returns the value of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the value of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found, find
       * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
 
-    /** 
-      * Returns the index of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the index of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
-      * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found,
+      * findIndex immediately returns that element index. Otherwise, findIndex returns -1.
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
     findIndex(predicate: (value: number) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
-      * @param callbackfn  A function that accepts up to three arguments. forEach calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg  An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn  A function that accepts up to three arguments. forEach calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     forEach(callbackfn: (value: number, index: number, array: Uint32Array) => void, thisArg?: any): void;
@@ -4458,7 +3216,7 @@ interface Uint32Array {
 
     /**
       * Adds all the elements of an array separated by the specified separator string.
-      * @param separator A string used to separate one element of an array from the next in the 
+      * @param separator A string used to separate one element of an array from the next in the
       * resulting String. If omitted, the array elements are separated with a comma.
       */
     join(separator?: string): string;
@@ -4466,7 +3224,7 @@ interface Uint32Array {
     /**
       * Returns the index of the last occurrence of a value in an array.
       * @param searchElement The value to locate in the array.
-      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the 
+      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the
       * search starts at index 0.
       */
     lastIndexOf(searchElement: number, fromIndex?: number): number;
@@ -4474,68 +3232,68 @@ interface Uint32Array {
     /**
       * The length of the array.
       */
-    length: number;
+    readonly length: number;
 
     /**
-      * Calls a defined callback function on each element of an array, and returns an array that 
+      * Calls a defined callback function on each element of an array, and returns an array that
       * contains the results.
-      * @param callbackfn A function that accepts up to three arguments. The map method calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn A function that accepts up to three arguments. The map method calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     map(callbackfn: (value: number, index: number, array: Uint32Array) => number, thisArg?: any): Uint32Array;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Uint32Array) => number, initialValue?: number): number;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an argument 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Uint32Array) => U, initialValue: U): U;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an 
+      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an
       * argument instead of an array value.
       */
     reduceRight(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Uint32Array) => number, initialValue?: number): number;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
       * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduceRight<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Uint32Array) => U, initialValue: U): U;
 
     /**
-      * Reverses the elements in an Array. 
+      * Reverses the elements in an Array.
       */
     reverse(): Uint32Array;
 
@@ -4553,7 +3311,7 @@ interface Uint32Array {
       */
     set(array: ArrayLike<number>, offset?: number): void;
 
-    /** 
+    /**
       * Returns a section of an array.
       * @param start The beginning of the specified portion of the array.
       * @param end The end of the specified portion of the array.
@@ -4562,31 +3320,31 @@ interface Uint32Array {
 
     /**
       * Determines whether the specified callback function returns true for any element of an array.
-      * @param callbackfn A function that accepts up to three arguments. The some method calls the 
-      * callbackfn function for each element in array1 until the callbackfn returns true, or until 
+      * @param callbackfn A function that accepts up to three arguments. The some method calls the
+      * callbackfn function for each element in array1 until the callbackfn returns true, or until
       * the end of the array.
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     some(callbackfn: (value: number, index: number, array: Uint32Array) => boolean, thisArg?: any): boolean;
 
     /**
       * Sorts an array.
-      * @param compareFn The name of the function used to determine the order of the elements. If 
+      * @param compareFn The name of the function used to determine the order of the elements. If
       * omitted, the elements are sorted in ascending, ASCII character order.
       */
-    sort(compareFn?: (a: number, b: number) => number): Uint32Array;
+    sort(compareFn?: (a: number, b: number) => number): this;
 
     /**
       * Gets a new Uint32Array view of the ArrayBuffer store for this array, referencing the elements
-      * at begin, inclusive, up to end, exclusive. 
+      * at begin, inclusive, up to end, exclusive.
       * @param begin The index of the beginning of the array.
       * @param end The index of the end of the array.
       */
     subarray(begin: number, end?: number): Uint32Array;
 
     /**
-      * Converts a number to a string by using the current locale. 
+      * Converts a number to a string by using the current locale.
       */
     toLocaleString(): string;
 
@@ -4599,22 +3357,22 @@ interface Uint32Array {
 }
 
 interface Uint32ArrayConstructor {
-    prototype: Uint32Array;
+    readonly prototype: Uint32Array;
     new (length: number): Uint32Array;
     new (array: ArrayLike<number>): Uint32Array;
     new (buffer: ArrayBuffer, byteOffset?: number, length?: number): Uint32Array;
 
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
       * Returns a new array from a set of elements.
       * @param items A set of elements to include in the new array object.
       */
     of(...items: number[]): Uint32Array;
-    
+
     /**
       * Creates an array from an array-like or iterable object.
       * @param arrayLike An array-like or iterable object to convert to an array.
@@ -4623,7 +3381,7 @@ interface Uint32ArrayConstructor {
       */
     from(arrayLike: ArrayLike<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Uint32Array;
 }
-declare var Uint32Array: Uint32ArrayConstructor;
+declare const Uint32Array: Uint32ArrayConstructor;
 
 /**
   * A typed array of 32-bit float values. The contents are initialized to 0. If the requested number
@@ -4631,40 +3389,40 @@ declare var Uint32Array: Uint32ArrayConstructor;
   */
 interface Float32Array {
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
-      * The ArrayBuffer instance referenced by the array. 
+      * The ArrayBuffer instance referenced by the array.
       */
-    buffer: ArrayBuffer;
+    readonly buffer: ArrayBuffer;
 
     /**
       * The length in bytes of the array.
       */
-    byteLength: number;
+    readonly byteLength: number;
 
     /**
       * The offset in bytes of the array.
       */
-    byteOffset: number;
+    readonly byteOffset: number;
 
-    /** 
+    /**
       * Returns the this object after copying a section of the array identified by start and end
       * to the same array starting at position target
-      * @param target If target is negative, it is treated as length+target where length is the 
-      * length of the array. 
-      * @param start If start is negative, it is treated as length+start. If end is negative, it 
+      * @param target If target is negative, it is treated as length+target where length is the
+      * length of the array.
+      * @param start If start is negative, it is treated as length+start. If end is negative, it
       * is treated as length+end.
-      * @param end If not specified, length of the this object is used as its default value. 
+      * @param end If not specified, length of the this object is used as its default value.
       */
-    copyWithin(target: number, start: number, end?: number): Float32Array;
+    copyWithin(target: number, start: number, end?: number): this;
 
     /**
       * Determines whether all the members of an array satisfy the specified test.
-      * @param callbackfn A function that accepts up to three arguments. The every method calls 
-      * the callbackfn function for each element in array1 until the callbackfn returns false, 
+      * @param callbackfn A function that accepts up to three arguments. The every method calls
+      * the callbackfn function for each element in array1 until the callbackfn returns false,
       * or until the end of the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
@@ -4674,49 +3432,49 @@ interface Float32Array {
     /**
         * Returns the this object after filling the section identified by start and end with value
         * @param value value to fill array section with
-        * @param start index to start filling the array at. If start is negative, it is treated as 
-        * length+start where length is the length of the array. 
-        * @param end index to stop filling the array at. If end is negative, it is treated as 
+        * @param start index to start filling the array at. If start is negative, it is treated as
+        * length+start where length is the length of the array.
+        * @param end index to stop filling the array at. If end is negative, it is treated as
         * length+end.
         */
-    fill(value: number, start?: number, end?: number): Float32Array;
+    fill(value: number, start?: number, end?: number): this;
 
     /**
-      * Returns the elements of an array that meet the condition specified in a callback function. 
-      * @param callbackfn A function that accepts up to three arguments. The filter method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * Returns the elements of an array that meet the condition specified in a callback function.
+      * @param callbackfn A function that accepts up to three arguments. The filter method calls
+      * the callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (value: number, index: number, array: Float32Array) => boolean, thisArg?: any): Float32Array;
+    filter(callbackfn: (value: number, index: number, array: Float32Array) => any, thisArg?: any): Float32Array;
 
-    /** 
-      * Returns the value of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the value of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found, find
       * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
 
-    /** 
-      * Returns the index of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the index of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
-      * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found,
+      * findIndex immediately returns that element index. Otherwise, findIndex returns -1.
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
     findIndex(predicate: (value: number) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
-      * @param callbackfn  A function that accepts up to three arguments. forEach calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg  An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn  A function that accepts up to three arguments. forEach calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     forEach(callbackfn: (value: number, index: number, array: Float32Array) => void, thisArg?: any): void;
@@ -4731,7 +3489,7 @@ interface Float32Array {
 
     /**
       * Adds all the elements of an array separated by the specified separator string.
-      * @param separator A string used to separate one element of an array from the next in the 
+      * @param separator A string used to separate one element of an array from the next in the
       * resulting String. If omitted, the array elements are separated with a comma.
       */
     join(separator?: string): string;
@@ -4739,7 +3497,7 @@ interface Float32Array {
     /**
       * Returns the index of the last occurrence of a value in an array.
       * @param searchElement The value to locate in the array.
-      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the 
+      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the
       * search starts at index 0.
       */
     lastIndexOf(searchElement: number, fromIndex?: number): number;
@@ -4747,68 +3505,68 @@ interface Float32Array {
     /**
       * The length of the array.
       */
-    length: number;
+    readonly length: number;
 
     /**
-      * Calls a defined callback function on each element of an array, and returns an array that 
+      * Calls a defined callback function on each element of an array, and returns an array that
       * contains the results.
-      * @param callbackfn A function that accepts up to three arguments. The map method calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn A function that accepts up to three arguments. The map method calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     map(callbackfn: (value: number, index: number, array: Float32Array) => number, thisArg?: any): Float32Array;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Float32Array) => number, initialValue?: number): number;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an argument 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Float32Array) => U, initialValue: U): U;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an 
+      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an
       * argument instead of an array value.
       */
     reduceRight(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Float32Array) => number, initialValue?: number): number;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
       * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduceRight<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Float32Array) => U, initialValue: U): U;
 
     /**
-      * Reverses the elements in an Array. 
+      * Reverses the elements in an Array.
       */
     reverse(): Float32Array;
 
@@ -4826,7 +3584,7 @@ interface Float32Array {
       */
     set(array: ArrayLike<number>, offset?: number): void;
 
-    /** 
+    /**
       * Returns a section of an array.
       * @param start The beginning of the specified portion of the array.
       * @param end The end of the specified portion of the array.
@@ -4835,31 +3593,31 @@ interface Float32Array {
 
     /**
       * Determines whether the specified callback function returns true for any element of an array.
-      * @param callbackfn A function that accepts up to three arguments. The some method calls the 
-      * callbackfn function for each element in array1 until the callbackfn returns true, or until 
+      * @param callbackfn A function that accepts up to three arguments. The some method calls the
+      * callbackfn function for each element in array1 until the callbackfn returns true, or until
       * the end of the array.
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     some(callbackfn: (value: number, index: number, array: Float32Array) => boolean, thisArg?: any): boolean;
 
     /**
       * Sorts an array.
-      * @param compareFn The name of the function used to determine the order of the elements. If 
+      * @param compareFn The name of the function used to determine the order of the elements. If
       * omitted, the elements are sorted in ascending, ASCII character order.
       */
-    sort(compareFn?: (a: number, b: number) => number): Float32Array;
+    sort(compareFn?: (a: number, b: number) => number): this;
 
     /**
       * Gets a new Float32Array view of the ArrayBuffer store for this array, referencing the elements
-      * at begin, inclusive, up to end, exclusive. 
+      * at begin, inclusive, up to end, exclusive.
       * @param begin The index of the beginning of the array.
       * @param end The index of the end of the array.
       */
     subarray(begin: number, end?: number): Float32Array;
 
     /**
-      * Converts a number to a string by using the current locale. 
+      * Converts a number to a string by using the current locale.
       */
     toLocaleString(): string;
 
@@ -4872,22 +3630,22 @@ interface Float32Array {
 }
 
 interface Float32ArrayConstructor {
-    prototype: Float32Array;
+    readonly prototype: Float32Array;
     new (length: number): Float32Array;
     new (array: ArrayLike<number>): Float32Array;
     new (buffer: ArrayBuffer, byteOffset?: number, length?: number): Float32Array;
 
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
       * Returns a new array from a set of elements.
       * @param items A set of elements to include in the new array object.
       */
     of(...items: number[]): Float32Array;
-    
+
     /**
       * Creates an array from an array-like or iterable object.
       * @param arrayLike An array-like or iterable object to convert to an array.
@@ -4897,48 +3655,48 @@ interface Float32ArrayConstructor {
     from(arrayLike: ArrayLike<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Float32Array;
 
 }
-declare var Float32Array: Float32ArrayConstructor;
+declare const Float32Array: Float32ArrayConstructor;
 
 /**
-  * A typed array of 64-bit float values. The contents are initialized to 0. If the requested 
+  * A typed array of 64-bit float values. The contents are initialized to 0. If the requested
   * number of bytes could not be allocated an exception is raised.
   */
 interface Float64Array {
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
-      * The ArrayBuffer instance referenced by the array. 
+      * The ArrayBuffer instance referenced by the array.
       */
-    buffer: ArrayBuffer;
+    readonly buffer: ArrayBuffer;
 
     /**
       * The length in bytes of the array.
       */
-    byteLength: number;
+    readonly byteLength: number;
 
     /**
       * The offset in bytes of the array.
       */
-    byteOffset: number;
+    readonly byteOffset: number;
 
-    /** 
+    /**
       * Returns the this object after copying a section of the array identified by start and end
       * to the same array starting at position target
-      * @param target If target is negative, it is treated as length+target where length is the 
-      * length of the array. 
-      * @param start If start is negative, it is treated as length+start. If end is negative, it 
+      * @param target If target is negative, it is treated as length+target where length is the
+      * length of the array.
+      * @param start If start is negative, it is treated as length+start. If end is negative, it
       * is treated as length+end.
-      * @param end If not specified, length of the this object is used as its default value. 
+      * @param end If not specified, length of the this object is used as its default value.
       */
-    copyWithin(target: number, start: number, end?: number): Float64Array;
+    copyWithin(target: number, start: number, end?: number): this;
 
     /**
       * Determines whether all the members of an array satisfy the specified test.
-      * @param callbackfn A function that accepts up to three arguments. The every method calls 
-      * the callbackfn function for each element in array1 until the callbackfn returns false, 
+      * @param callbackfn A function that accepts up to three arguments. The every method calls
+      * the callbackfn function for each element in array1 until the callbackfn returns false,
       * or until the end of the array.
       * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
@@ -4948,49 +3706,49 @@ interface Float64Array {
     /**
         * Returns the this object after filling the section identified by start and end with value
         * @param value value to fill array section with
-        * @param start index to start filling the array at. If start is negative, it is treated as 
-        * length+start where length is the length of the array. 
-        * @param end index to stop filling the array at. If end is negative, it is treated as 
+        * @param start index to start filling the array at. If start is negative, it is treated as
+        * length+start where length is the length of the array.
+        * @param end index to stop filling the array at. If end is negative, it is treated as
         * length+end.
         */
-    fill(value: number, start?: number, end?: number): Float64Array;
+    fill(value: number, start?: number, end?: number): this;
 
     /**
-      * Returns the elements of an array that meet the condition specified in a callback function. 
-      * @param callbackfn A function that accepts up to three arguments. The filter method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * Returns the elements of an array that meet the condition specified in a callback function.
+      * @param callbackfn A function that accepts up to three arguments. The filter method calls
+      * the callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
-    filter(callbackfn: (value: number, index: number, array: Float64Array) => boolean, thisArg?: any): Float64Array;
+    filter(callbackfn: (value: number, index: number, array: Float64Array) => any, thisArg?: any): Float64Array;
 
-    /** 
-      * Returns the value of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the value of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found, find
       * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
 
-    /** 
-      * Returns the index of the first element in the array where predicate is true, and undefined 
+    /**
+      * Returns the index of the first element in the array where predicate is true, and undefined
       * otherwise.
-      * @param predicate find calls predicate once for each element of the array, in ascending 
-      * order, until it finds one where predicate returns true. If such an element is found, find 
-      * immediately returns that element value. Otherwise, find returns undefined.
-      * @param thisArg If provided, it will be used as the this value for each invocation of 
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found,
+      * findIndex immediately returns that element index. Otherwise, findIndex returns -1.
+      * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
     findIndex(predicate: (value: number) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
-      * @param callbackfn  A function that accepts up to three arguments. forEach calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg  An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn  A function that accepts up to three arguments. forEach calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg  An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     forEach(callbackfn: (value: number, index: number, array: Float64Array) => void, thisArg?: any): void;
@@ -5005,7 +3763,7 @@ interface Float64Array {
 
     /**
       * Adds all the elements of an array separated by the specified separator string.
-      * @param separator A string used to separate one element of an array from the next in the 
+      * @param separator A string used to separate one element of an array from the next in the
       * resulting String. If omitted, the array elements are separated with a comma.
       */
     join(separator?: string): string;
@@ -5013,7 +3771,7 @@ interface Float64Array {
     /**
       * Returns the index of the last occurrence of a value in an array.
       * @param searchElement The value to locate in the array.
-      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the 
+      * @param fromIndex The array index at which to begin the search. If fromIndex is omitted, the
       * search starts at index 0.
       */
     lastIndexOf(searchElement: number, fromIndex?: number): number;
@@ -5021,68 +3779,68 @@ interface Float64Array {
     /**
       * The length of the array.
       */
-    length: number;
+    readonly length: number;
 
     /**
-      * Calls a defined callback function on each element of an array, and returns an array that 
+      * Calls a defined callback function on each element of an array, and returns an array that
       * contains the results.
-      * @param callbackfn A function that accepts up to three arguments. The map method calls the 
-      * callbackfn function one time for each element in the array. 
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param callbackfn A function that accepts up to three arguments. The map method calls the
+      * callbackfn function one time for each element in the array.
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     map(callbackfn: (value: number, index: number, array: Float64Array) => number, thisArg?: any): Float64Array;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Float64Array) => number, initialValue?: number): number;
 
     /**
-      * Calls the specified callback function for all the elements in an array. The return value of 
-      * the callback function is the accumulated result, and is provided as an argument in the next 
+      * Calls the specified callback function for all the elements in an array. The return value of
+      * the callback function is the accumulated result, and is provided as an argument in the next
       * call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the 
+      * @param callbackfn A function that accepts up to four arguments. The reduce method calls the
       * callbackfn function one time for each element in the array.
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an argument 
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduce<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Float64Array) => U, initialValue: U): U;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
-      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls 
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
-      * the accumulation. The first call to the callbackfn function provides this value as an 
+      * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
+      * the accumulation. The first call to the callbackfn function provides this value as an
       * argument instead of an array value.
       */
     reduceRight(callbackfn: (previousValue: number, currentValue: number, currentIndex: number, array: Float64Array) => number, initialValue?: number): number;
 
-    /** 
-      * Calls the specified callback function for all the elements in an array, in descending order. 
-      * The return value of the callback function is the accumulated result, and is provided as an 
+    /**
+      * Calls the specified callback function for all the elements in an array, in descending order.
+      * The return value of the callback function is the accumulated result, and is provided as an
       * argument in the next call to the callback function.
       * @param callbackfn A function that accepts up to four arguments. The reduceRight method calls
-      * the callbackfn function one time for each element in the array. 
-      * @param initialValue If initialValue is specified, it is used as the initial value to start 
+      * the callbackfn function one time for each element in the array.
+      * @param initialValue If initialValue is specified, it is used as the initial value to start
       * the accumulation. The first call to the callbackfn function provides this value as an argument
       * instead of an array value.
       */
     reduceRight<U>(callbackfn: (previousValue: U, currentValue: number, currentIndex: number, array: Float64Array) => U, initialValue: U): U;
 
     /**
-      * Reverses the elements in an Array. 
+      * Reverses the elements in an Array.
       */
     reverse(): Float64Array;
 
@@ -5100,7 +3858,7 @@ interface Float64Array {
       */
     set(array: ArrayLike<number>, offset?: number): void;
 
-    /** 
+    /**
       * Returns a section of an array.
       * @param start The beginning of the specified portion of the array.
       * @param end The end of the specified portion of the array.
@@ -5109,31 +3867,31 @@ interface Float64Array {
 
     /**
       * Determines whether the specified callback function returns true for any element of an array.
-      * @param callbackfn A function that accepts up to three arguments. The some method calls the 
-      * callbackfn function for each element in array1 until the callbackfn returns true, or until 
+      * @param callbackfn A function that accepts up to three arguments. The some method calls the
+      * callbackfn function for each element in array1 until the callbackfn returns true, or until
       * the end of the array.
-      * @param thisArg An object to which the this keyword can refer in the callbackfn function. 
+      * @param thisArg An object to which the this keyword can refer in the callbackfn function.
       * If thisArg is omitted, undefined is used as the this value.
       */
     some(callbackfn: (value: number, index: number, array: Float64Array) => boolean, thisArg?: any): boolean;
 
     /**
       * Sorts an array.
-      * @param compareFn The name of the function used to determine the order of the elements. If 
+      * @param compareFn The name of the function used to determine the order of the elements. If
       * omitted, the elements are sorted in ascending, ASCII character order.
       */
-    sort(compareFn?: (a: number, b: number) => number): Float64Array;
+    sort(compareFn?: (a: number, b: number) => number): this;
 
     /**
       * Gets a new Float64Array view of the ArrayBuffer store for this array, referencing the elements
-      * at begin, inclusive, up to end, exclusive. 
+      * at begin, inclusive, up to end, exclusive.
       * @param begin The index of the beginning of the array.
       * @param end The index of the end of the array.
       */
     subarray(begin: number, end?: number): Float64Array;
 
     /**
-      * Converts a number to a string by using the current locale. 
+      * Converts a number to a string by using the current locale.
       */
     toLocaleString(): string;
 
@@ -5146,22 +3904,22 @@ interface Float64Array {
 }
 
 interface Float64ArrayConstructor {
-    prototype: Float64Array;
+    readonly prototype: Float64Array;
     new (length: number): Float64Array;
     new (array: ArrayLike<number>): Float64Array;
     new (buffer: ArrayBuffer, byteOffset?: number, length?: number): Float64Array;
 
     /**
-      * The size in bytes of each element in the array. 
+      * The size in bytes of each element in the array.
       */
-    BYTES_PER_ELEMENT: number;
+    readonly BYTES_PER_ELEMENT: number;
 
     /**
       * Returns a new array from a set of elements.
       * @param items A set of elements to include in the new array object.
       */
     of(...items: number[]): Float64Array;
-    
+
     /**
       * Creates an array from an array-like or iterable object.
       * @param arrayLike An array-like or iterable object to convert to an array.
@@ -5170,9 +3928,10 @@ interface Float64ArrayConstructor {
       */
     from(arrayLike: ArrayLike<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Float64Array;
 }
-declare var Float64Array: Float64ArrayConstructor;
+declare const Float64Array: Float64ArrayConstructor;
+
 /////////////////////////////
-/// ECMAScript Internationalization API 
+/// ECMAScript Internationalization API
 /////////////////////////////
 
 declare module Intl {
@@ -5315,14 +4074,14 @@ interface String {
 
 interface Number {
     /**
-      * Converts a number to a string by using the current or specified locale. 
+      * Converts a number to a string by using the current or specified locale.
       * @param locales An array of locale strings that contain one or more language or locale tags. If you include more than one locale string, list them in descending order of priority so that the first entry is the preferred locale. If you omit this parameter, the default locale of the JavaScript runtime is used.
       * @param options An object that contains one or more properties that specify comparison options.
       */
     toLocaleString(locales?: string[], options?: Intl.NumberFormatOptions): string;
 
     /**
-      * Converts a number to a string by using the current or specified locale. 
+      * Converts a number to a string by using the current or specified locale.
       * @param locale Locale tag. If you omit this parameter, the default locale of the JavaScript runtime is used.
       * @param options An object that contains one or more properties that specify comparison options.
       */
@@ -5331,54 +4090,1661 @@ interface Number {
 
 interface Date {
     /**
-      * Converts a date and time to a string by using the current or specified locale.  
+      * Converts a date and time to a string by using the current or specified locale.
       * @param locales An array of locale strings that contain one or more language or locale tags. If you include more than one locale string, list them in descending order of priority so that the first entry is the preferred locale. If you omit this parameter, the default locale of the JavaScript runtime is used.
       * @param options An object that contains one or more properties that specify comparison options.
       */
     toLocaleString(locales?: string[], options?: Intl.DateTimeFormatOptions): string;
     /**
-      * Converts a date to a string by using the current or specified locale.  
+      * Converts a date to a string by using the current or specified locale.
       * @param locales An array of locale strings that contain one or more language or locale tags. If you include more than one locale string, list them in descending order of priority so that the first entry is the preferred locale. If you omit this parameter, the default locale of the JavaScript runtime is used.
       * @param options An object that contains one or more properties that specify comparison options.
       */
     toLocaleDateString(locales?: string[], options?: Intl.DateTimeFormatOptions): string;
 
     /**
-      * Converts a time to a string by using the current or specified locale.  
+      * Converts a time to a string by using the current or specified locale.
       * @param locale Locale tag. If you omit this parameter, the default locale of the JavaScript runtime is used.
       * @param options An object that contains one or more properties that specify comparison options.
       */
     toLocaleTimeString(locale?: string[], options?: Intl.DateTimeFormatOptions): string;
-    
+
     /**
-      * Converts a date and time to a string by using the current or specified locale.  
+      * Converts a date and time to a string by using the current or specified locale.
       * @param locale Locale tag. If you omit this parameter, the default locale of the JavaScript runtime is used.
       * @param options An object that contains one or more properties that specify comparison options.
       */
     toLocaleString(locale?: string, options?: Intl.DateTimeFormatOptions): string;
-    
+
     /**
-      * Converts a date to a string by using the current or specified locale.  
+      * Converts a date to a string by using the current or specified locale.
       * @param locale Locale tag. If you omit this parameter, the default locale of the JavaScript runtime is used.
       * @param options An object that contains one or more properties that specify comparison options.
       */
     toLocaleDateString(locale?: string, options?: Intl.DateTimeFormatOptions): string;
 
     /**
-      * Converts a time to a string by using the current or specified locale.  
+      * Converts a time to a string by using the current or specified locale.
       * @param locale Locale tag. If you omit this parameter, the default locale of the JavaScript runtime is used.
       * @param options An object that contains one or more properties that specify comparison options.
       */
     toLocaleTimeString(locale?: string, options?: Intl.DateTimeFormatOptions): string;
 }
+declare type PropertyKey = string | number | symbol;
+
+interface Array<T> {
+    /**
+      * Returns the value of the first element in the array where predicate is true, and undefined
+      * otherwise.
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found, find
+      * immediately returns that element value. Otherwise, find returns undefined.
+      * @param thisArg If provided, it will be used as the this value for each invocation of
+      * predicate. If it is not provided, undefined is used instead.
+      */
+    find(predicate: (value: T, index: number, obj: Array<T>) => boolean, thisArg?: any): T | undefined;
+
+    /**
+      * Returns the index of the first element in the array where predicate is true, and undefined
+      * otherwise.
+      * @param predicate find calls predicate once for each element of the array, in ascending
+      * order, until it finds one where predicate returns true. If such an element is found, 
+      * findIndex immediately returns that element index. Otherwise, findIndex returns -1.
+      * @param thisArg If provided, it will be used as the this value for each invocation of
+      * predicate. If it is not provided, undefined is used instead.
+      */
+    findIndex(predicate: (value: T) => boolean, thisArg?: any): number;
+
+    /**
+      * Returns the this object after filling the section identified by start and end with value
+      * @param value value to fill array section with
+      * @param start index to start filling the array at. If start is negative, it is treated as
+      * length+start where length is the length of the array.
+      * @param end index to stop filling the array at. If end is negative, it is treated as
+      * length+end.
+      */
+    fill(value: T, start?: number, end?: number): this;
+
+    /**
+      * Returns the this object after copying a section of the array identified by start and end
+      * to the same array starting at position target
+      * @param target If target is negative, it is treated as length+target where length is the
+      * length of the array.
+      * @param start If start is negative, it is treated as length+start. If end is negative, it
+      * is treated as length+end.
+      * @param end If not specified, length of the this object is used as its default value.
+      */
+    copyWithin(target: number, start: number, end?: number): this;
+}
+
+interface ArrayConstructor {
+    /**
+      * Creates an array from an array-like object.
+      * @param arrayLike An array-like object to convert to an array.
+      * @param mapfn A mapping function to call on every element of the array.
+      * @param thisArg Value of 'this' used to invoke the mapfn.
+      */
+    from<T, U>(arrayLike: ArrayLike<T>, mapfn: (v: T, k: number) => U, thisArg?: any): Array<U>;
+
+
+    /**
+      * Creates an array from an array-like object.
+      * @param arrayLike An array-like object to convert to an array.
+      */
+    from<T>(arrayLike: ArrayLike<T>): Array<T>;
+
+    /**
+      * Returns a new array from a set of elements.
+      * @param items A set of elements to include in the new array object.
+      */
+    of<T>(...items: T[]): Array<T>;
+}
+
+interface DateConstructor {
+    new (value: Date): Date;
+}
+
+interface Function {
+    /**
+      * Returns the name of the function. Function names are read-only and can not be changed.
+      */
+    readonly name: string;
+}
+
+interface Math {
+    /**
+      * Returns the number of leading zero bits in the 32-bit binary representation of a number.
+      * @param x A numeric expression.
+      */
+    clz32(x: number): number;
+
+    /**
+      * Returns the result of 32-bit multiplication of two numbers.
+      * @param x First number
+      * @param y Second number
+      */
+    imul(x: number, y: number): number;
+
+    /**
+      * Returns the sign of the x, indicating whether x is positive, negative or zero.
+      * @param x The numeric expression to test
+      */
+    sign(x: number): number;
+
+    /**
+      * Returns the base 10 logarithm of a number.
+      * @param x A numeric expression.
+      */
+    log10(x: number): number;
+
+    /**
+      * Returns the base 2 logarithm of a number.
+      * @param x A numeric expression.
+      */
+    log2(x: number): number;
+
+    /**
+      * Returns the natural logarithm of 1 + x.
+      * @param x A numeric expression.
+      */
+    log1p(x: number): number;
+
+    /**
+      * Returns the result of (e^x - 1) of x (e raised to the power of x, where e is the base of
+      * the natural logarithms).
+      * @param x A numeric expression.
+      */
+    expm1(x: number): number;
+
+    /**
+      * Returns the hyperbolic cosine of a number.
+      * @param x A numeric expression that contains an angle measured in radians.
+      */
+    cosh(x: number): number;
+
+    /**
+      * Returns the hyperbolic sine of a number.
+      * @param x A numeric expression that contains an angle measured in radians.
+      */
+    sinh(x: number): number;
+
+    /**
+      * Returns the hyperbolic tangent of a number.
+      * @param x A numeric expression that contains an angle measured in radians.
+      */
+    tanh(x: number): number;
+
+    /**
+      * Returns the inverse hyperbolic cosine of a number.
+      * @param x A numeric expression that contains an angle measured in radians.
+      */
+    acosh(x: number): number;
+
+    /**
+      * Returns the inverse hyperbolic sine of a number.
+      * @param x A numeric expression that contains an angle measured in radians.
+      */
+    asinh(x: number): number;
+
+    /**
+      * Returns the inverse hyperbolic tangent of a number.
+      * @param x A numeric expression that contains an angle measured in radians.
+      */
+    atanh(x: number): number;
+
+    /**
+      * Returns the square root of the sum of squares of its arguments.
+      * @param values Values to compute the square root for.
+      *     If no arguments are passed, the result is +0.
+      *     If there is only one argument, the result is the absolute value.
+      *     If any argument is +Infinity or -Infinity, the result is +Infinity.
+      *     If any argument is NaN, the result is NaN.
+      *     If all arguments are either +0 or −0, the result is +0.
+      */
+    hypot(...values: number[] ): number;
+
+    /**
+      * Returns the integral part of the a numeric expression, x, removing any fractional digits.
+      * If x is already an integer, the result is x.
+      * @param x A numeric expression.
+      */
+    trunc(x: number): number;
+
+    /**
+      * Returns the nearest single precision float representation of a number.
+      * @param x A numeric expression.
+      */
+    fround(x: number): number;
+
+    /**
+      * Returns an implementation-dependent approximation to the cube root of number.
+      * @param x A numeric expression.
+      */
+    cbrt(x: number): number;
+}
+
+interface NumberConstructor {
+    /**
+      * The value of Number.EPSILON is the difference between 1 and the smallest value greater than 1
+      * that is representable as a Number value, which is approximately:
+      * 2.2204460492503130808472633361816 x 10‍−‍16.
+      */
+    readonly EPSILON: number;
+
+    /**
+      * Returns true if passed value is finite.
+      * Unlike the global isFininte, Number.isFinite doesn't forcibly convert the parameter to a
+      * number. Only finite values of the type number, result in true.
+      * @param number A numeric value.
+      */
+    isFinite(number: number): boolean;
+
+    /**
+      * Returns true if the value passed is an integer, false otherwise.
+      * @param number A numeric value.
+      */
+    isInteger(number: number): boolean;
+
+    /**
+      * Returns a Boolean value that indicates whether a value is the reserved value NaN (not a
+      * number). Unlike the global isNaN(), Number.isNaN() doesn't forcefully convert the parameter
+      * to a number. Only values of the type number, that are also NaN, result in true.
+      * @param number A numeric value.
+      */
+    isNaN(number: number): boolean;
+
+    /**
+      * Returns true if the value passed is a safe integer.
+      * @param number A numeric value.
+      */
+    isSafeInteger(number: number): boolean;
+
+    /**
+      * The value of the largest integer n such that n and n + 1 are both exactly representable as
+      * a Number value.
+      * The value of Number.MAX_SAFE_INTEGER is 9007199254740991 2^53 − 1.
+      */
+    readonly MAX_SAFE_INTEGER: number;
+
+    /**
+      * The value of the smallest integer n such that n and n − 1 are both exactly representable as
+      * a Number value.
+      * The value of Number.MIN_SAFE_INTEGER is −9007199254740991 (−(2^53 − 1)).
+      */
+    readonly MIN_SAFE_INTEGER: number;
+
+    /**
+      * Converts a string to a floating-point number.
+      * @param string A string that contains a floating-point number.
+      */
+    parseFloat(string: string): number;
+
+    /**
+      * Converts A string to an integer.
+      * @param s A string to convert into a number.
+      * @param radix A value between 2 and 36 that specifies the base of the number in numString.
+      * If this argument is not supplied, strings with a prefix of '0x' are considered hexadecimal.
+      * All other strings are considered decimal.
+      */
+    parseInt(string: string, radix?: number): number;
+}
+
+interface Object {
+    /**
+      * Determines whether an object has a property with the specified name.
+      * @param v A property name.
+      */
+    hasOwnProperty(v: PropertyKey): boolean
+
+    /**
+      * Determines whether a specified property is enumerable.
+      * @param v A property name.
+      */
+    propertyIsEnumerable(v: PropertyKey): boolean;
+}
+
+interface ObjectConstructor {
+    /**
+      * Copy the values of all of the enumerable own properties from one or more source objects to a
+      * target object. Returns the target object.
+      * @param target The target object to copy to.
+      * @param source The source object from which to copy properties.
+      */
+    assign<T, U>(target: T, source: U): T & U;
+
+    /**
+      * Copy the values of all of the enumerable own properties from one or more source objects to a
+      * target object. Returns the target object.
+      * @param target The target object to copy to.
+      * @param source1 The first source object from which to copy properties.
+      * @param source2 The second source object from which to copy properties.
+      */
+    assign<T, U, V>(target: T, source1: U, source2: V): T & U & V;
+
+    /**
+      * Copy the values of all of the enumerable own properties from one or more source objects to a
+      * target object. Returns the target object.
+      * @param target The target object to copy to.
+      * @param source1 The first source object from which to copy properties.
+      * @param source2 The second source object from which to copy properties.
+      * @param source3 The third source object from which to copy properties.
+      */
+    assign<T, U, V, W>(target: T, source1: U, source2: V, source3: W): T & U & V & W;
+
+    /**
+      * Copy the values of all of the enumerable own properties from one or more source objects to a
+      * target object. Returns the target object.
+      * @param target The target object to copy to.
+      * @param sources One or more source objects from which to copy properties
+      */
+    assign(target: any, ...sources: any[]): any;
+
+    /**
+      * Returns an array of all symbol properties found directly on object o.
+      * @param o Object to retrieve the symbols from.
+      */
+    getOwnPropertySymbols(o: any): symbol[];
+
+    /**
+      * Returns true if the values are the same value, false otherwise.
+      * @param value1 The first value.
+      * @param value2 The second value.
+      */
+    is(value1: any, value2: any): boolean;
+
+    /**
+      * Sets the prototype of a specified object o to  object proto or null. Returns the object o.
+      * @param o The object to change its prototype.
+      * @param proto The value of the new prototype or null.
+      */
+    setPrototypeOf(o: any, proto: any): any;
+
+    /**
+      * Gets the own property descriptor of the specified object.
+      * An own property descriptor is one that is defined directly on the object and is not
+      * inherited from the object's prototype.
+      * @param o Object that contains the property.
+      * @param p Name of the property.
+    */
+    getOwnPropertyDescriptor(o: any, propertyKey: PropertyKey): PropertyDescriptor;
+
+    /**
+      * Adds a property to an object, or modifies attributes of an existing property.
+      * @param o Object on which to add or modify the property. This can be a native JavaScript
+      * object (that is, a user-defined object or a built in object) or a DOM object.
+      * @param p The property name.
+      * @param attributes Descriptor for the property. It can be for a data property or an accessor
+      *  property.
+      */
+    defineProperty(o: any, propertyKey: PropertyKey, attributes: PropertyDescriptor): any;
+}
+
+interface ReadonlyArray<T> {
+  /**
+    * Returns the value of the first element in the array where predicate is true, and undefined
+    * otherwise.
+    * @param predicate find calls predicate once for each element of the array, in ascending
+    * order, until it finds one where predicate returns true. If such an element is found, find
+    * immediately returns that element value. Otherwise, find returns undefined.
+    * @param thisArg If provided, it will be used as the this value for each invocation of
+    * predicate. If it is not provided, undefined is used instead.
+    */
+  find(predicate: (value: T, index: number, obj: ReadonlyArray<T>) => boolean, thisArg?: any): T | undefined;
+
+  /**
+    * Returns the index of the first element in the array where predicate is true, and undefined
+    * otherwise.
+    * @param predicate find calls predicate once for each element of the array, in ascending
+    * order, until it finds one where predicate returns true. If such an element is found, 
+    * findIndex immediately returns that element index. Otherwise, findIndex returns -1.
+    * @param thisArg If provided, it will be used as the this value for each invocation of
+    * predicate. If it is not provided, undefined is used instead.
+    */
+  findIndex(predicate: (value: T) => boolean, thisArg?: any): number;
+}
+
+interface RegExp {
+    /**
+      * Returns a string indicating the flags of the regular expression in question. This field is read-only.
+      * The characters in this string are sequenced and concatenated in the following order:
+      *
+      *    - "g" for global
+      *    - "i" for ignoreCase
+      *    - "m" for multiline
+      *    - "u" for unicode
+      *    - "y" for sticky
+      *
+      * If no flags are set, the value is the empty string.
+      */
+    readonly flags: string;
+
+    /**
+      * Returns a Boolean value indicating the state of the sticky flag (y) used with a regular
+      * expression. Default is false. Read-only.
+      */
+    readonly sticky: boolean;
+
+    /**
+      * Returns a Boolean value indicating the state of the Unicode flag (u) used with a regular
+      * expression. Default is false. Read-only.
+      */
+    readonly unicode: boolean;
+}
+
+interface RegExpConstructor {
+    new (pattern: RegExp, flags?: string): RegExp;
+    (pattern: RegExp, flags?: string): RegExp;
+}
+
+interface String {
+    /**
+      * Returns a nonnegative integer Number less than 1114112 (0x110000) that is the code point
+      * value of the UTF-16 encoded code point starting at the string element at position pos in
+      * the String resulting from converting this object to a String.
+      * If there is no element at that position, the result is undefined.
+      * If a valid UTF-16 surrogate pair does not begin at pos, the result is the code unit at pos.
+      */
+    codePointAt(pos: number): number | undefined;
+
+    /**
+      * Returns true if searchString appears as a substring of the result of converting this
+      * object to a String, at one or more positions that are
+      * greater than or equal to position; otherwise, returns false.
+      * @param searchString search string
+      * @param position If position is undefined, 0 is assumed, so as to search all of the String.
+      */
+    includes(searchString: string, position?: number): boolean;
+
+    /**
+      * Returns true if the sequence of elements of searchString converted to a String is the
+      * same as the corresponding elements of this object (converted to a String) starting at
+      * endPosition – length(this). Otherwise returns false.
+      */
+    endsWith(searchString: string, endPosition?: number): boolean;
+
+    /**
+      * Returns the String value result of normalizing the string into the normalization form
+      * named by form as specified in Unicode Standard Annex #15, Unicode Normalization Forms.
+      * @param form Applicable values: "NFC", "NFD", "NFKC", or "NFKD", If not specified default
+      * is "NFC"
+      */
+    normalize(form: "NFC" | "NFD" | "NFKC" | "NFKD"): string;
+
+    /**
+      * Returns the String value result of normalizing the string into the normalization form
+      * named by form as specified in Unicode Standard Annex #15, Unicode Normalization Forms.
+      * @param form Applicable values: "NFC", "NFD", "NFKC", or "NFKD", If not specified default
+      * is "NFC"
+      */
+    normalize(form?: string): string;
+
+    /**
+      * Returns a String value that is made from count copies appended together. If count is 0,
+      * T is the empty String is returned.
+      * @param count number of copies to append
+      */
+    repeat(count: number): string;
+
+    /**
+      * Returns true if the sequence of elements of searchString converted to a String is the
+      * same as the corresponding elements of this object (converted to a String) starting at
+      * position. Otherwise returns false.
+      */
+    startsWith(searchString: string, position?: number): boolean;
+
+    /**
+      * Returns an <a> HTML anchor element and sets the name attribute to the text value
+      * @param name
+      */
+    anchor(name: string): string;
+
+    /** Returns a <big> HTML element */
+    big(): string;
+
+    /** Returns a <blink> HTML element */
+    blink(): string;
+
+    /** Returns a <b> HTML element */
+    bold(): string;
+
+    /** Returns a <tt> HTML element */
+    fixed(): string
+
+    /** Returns a <font> HTML element and sets the color attribute value */
+    fontcolor(color: string): string
+
+    /** Returns a <font> HTML element and sets the size attribute value */
+    fontsize(size: number): string;
+
+    /** Returns a <font> HTML element and sets the size attribute value */
+    fontsize(size: string): string;
+
+    /** Returns an <i> HTML element */
+    italics(): string;
+
+    /** Returns an <a> HTML element and sets the href attribute value */
+    link(url: string): string;
+
+    /** Returns a <small> HTML element */
+    small(): string;
+
+    /** Returns a <strike> HTML element */
+    strike(): string;
+
+    /** Returns a <sub> HTML element */
+    sub(): string;
+
+    /** Returns a <sup> HTML element */
+    sup(): string;
+}
+
+interface StringConstructor {
+    /**
+      * Return the String value whose elements are, in order, the elements in the List elements.
+      * If length is 0, the empty string is returned.
+      */
+    fromCodePoint(...codePoints: number[]): string;
+
+    /**
+      * String.raw is intended for use as a tag function of a Tagged Template String. When called
+      * as such the first argument will be a well formed template call site object and the rest
+      * parameter will contain the substitution values.
+      * @param template A well-formed template string call site representation.
+      * @param substitutions A set of substitution values.
+      */
+    raw(template: TemplateStringsArray, ...substitutions: any[]): string;
+}
+interface Map<K, V> {
+    clear(): void;
+    delete(key: K): boolean;
+    forEach(callbackfn: (value: V, index: K, map: Map<K, V>) => void, thisArg?: any): void;
+    get(key: K): V | undefined;
+    has(key: K): boolean;
+    set(key: K, value?: V): this;
+    readonly size: number;
+}
+
+interface MapConstructor {
+    new (): Map<any, any>;
+    new <K, V>(entries?: [K, V][]): Map<K, V>;
+    readonly prototype: Map<any, any>;
+}
+declare var Map: MapConstructor;
+
+interface WeakMap<K, V> {
+    clear(): void;
+    delete(key: K): boolean;
+    get(key: K): V | undefined;
+    has(key: K): boolean;
+    set(key: K, value?: V): this;
+}
+
+interface WeakMapConstructor {
+    new (): WeakMap<any, any>;
+    new <K, V>(entries?: [K, V][]): WeakMap<K, V>;
+    readonly prototype: WeakMap<any, any>;
+}
+declare var WeakMap: WeakMapConstructor;
+
+interface Set<T> {
+    add(value: T): this;
+    clear(): void;
+    delete(value: T): boolean;
+    forEach(callbackfn: (value: T, index: T, set: Set<T>) => void, thisArg?: any): void;
+    has(value: T): boolean;
+    readonly size: number;
+}
+
+interface SetConstructor {
+    new (): Set<any>;
+    new <T>(values?: T[]): Set<T>;
+    readonly prototype: Set<any>;
+}
+declare var Set: SetConstructor;
+
+interface WeakSet<T> {
+    add(value: T): this;
+    clear(): void;
+    delete(value: T): boolean;
+    has(value: T): boolean;
+}
+
+interface WeakSetConstructor {
+    new (): WeakSet<any>;
+    new <T>(values?: T[]): WeakSet<T>;
+    readonly prototype: WeakSet<any>;
+}
+declare var WeakSet: WeakSetConstructor;
+interface GeneratorFunction extends Function { }
+
+interface GeneratorFunctionConstructor {
+    /**
+      * Creates a new Generator function.
+      * @param args A list of arguments the function accepts.
+      */
+    new (...args: string[]): GeneratorFunction;
+    (...args: string[]): GeneratorFunction;
+    readonly prototype: GeneratorFunction;
+}
+declare var GeneratorFunction: GeneratorFunctionConstructor;
+/// <reference path="lib.es2015.symbol.d.ts" />
+
+interface SymbolConstructor {
+    /** 
+      * A method that returns the default iterator for an object. Called by the semantics of the 
+      * for-of statement.
+      */
+    readonly iterator: symbol;
+}
+
+interface IteratorResult<T> {
+    done: boolean;
+    value: T;
+}
+
+interface Iterator<T> {
+    next(value?: any): IteratorResult<T>;
+    return?(value?: any): IteratorResult<T>;
+    throw?(e?: any): IteratorResult<T>;
+}
+
+interface Iterable<T> {
+    [Symbol.iterator](): Iterator<T>;
+}
+
+interface IterableIterator<T> extends Iterator<T> {
+    [Symbol.iterator](): IterableIterator<T>;
+}
+
+interface Array<T> {
+    /** Iterator */
+    [Symbol.iterator](): IterableIterator<T>;
+
+    /** 
+      * Returns an array of key, value pairs for every entry in the array
+      */
+    entries(): IterableIterator<[number, T]>;
+
+    /** 
+      * Returns an list of keys in the array
+      */
+    keys(): IterableIterator<number>;
+
+    /** 
+      * Returns an list of values in the array
+      */
+    values(): IterableIterator<T>;
+}
+
+interface ArrayConstructor {
+    /**
+      * Creates an array from an iterable object.
+      * @param iterable An iterable object to convert to an array.
+      * @param mapfn A mapping function to call on every element of the array.
+      * @param thisArg Value of 'this' used to invoke the mapfn.
+      */
+    from<T, U>(iterable: Iterable<T>, mapfn: (v: T, k: number) => U, thisArg?: any): Array<U>;
+    
+    /**
+      * Creates an array from an iterable object.
+      * @param iterable An iterable object to convert to an array.
+      */
+    from<T>(iterable: Iterable<T>): Array<T>;
+}
+
+interface ReadonlyArray<T> {
+    /** Iterator */
+    [Symbol.iterator](): IterableIterator<T>;
+
+    /** 
+      * Returns an array of key, value pairs for every entry in the array
+      */
+    entries(): IterableIterator<[number, T]>;
+
+    /** 
+      * Returns an list of keys in the array
+      */
+    keys(): IterableIterator<number>;
+
+    /** 
+      * Returns an list of values in the array
+      */
+    values(): IterableIterator<T>;
+}
+
+interface IArguments {
+    /** Iterator */
+    [Symbol.iterator](): IterableIterator<any>;
+}
+
+interface Map<K, V> {
+    [Symbol.iterator](): IterableIterator<[K,V]>;
+    entries(): IterableIterator<[K, V]>;
+    keys(): IterableIterator<K>;
+    values(): IterableIterator<V>;
+}
+
+interface MapConstructor {
+    new <K, V>(iterable: Iterable<[K, V]>): Map<K, V>;
+}
+
+interface WeakMap<K, V> { }
+
+interface WeakMapConstructor {
+    new <K, V>(iterable: Iterable<[K, V]>): WeakMap<K, V>;
+}
+
+interface Set<T> {
+    [Symbol.iterator](): IterableIterator<T>;
+    entries(): IterableIterator<[T, T]>;
+    keys(): IterableIterator<T>;
+    values(): IterableIterator<T>;
+}
+
+interface SetConstructor {
+    new <T>(iterable: Iterable<T>): Set<T>;
+}
+
+interface WeakSet<T> { }
+
+interface WeakSetConstructor {
+    new <T>(iterable: Iterable<T>): WeakSet<T>;
+}
+
+interface Promise<T> { }
+
+interface PromiseConstructor {
+    /**
+     * Creates a Promise that is resolved with an array of results when all of the provided Promises 
+     * resolve, or rejected when any Promise is rejected.
+     * @param values An array of Promises.
+     * @returns A new Promise.
+     */
+    all<TAll>(values: Iterable<TAll | PromiseLike<TAll>>): Promise<TAll[]>;
+    
+    /**
+     * Creates a Promise that is resolved or rejected when any of the provided Promises are resolved 
+     * or rejected.
+     * @param values An array of Promises.
+     * @returns A new Promise.
+     */
+    race<T>(values: Iterable<T | PromiseLike<T>>): Promise<T>;
+}
+
+declare namespace Reflect {
+    function enumerate(target: any): IterableIterator<any>;
+}
+
+interface String {
+    /** Iterator */
+    [Symbol.iterator](): IterableIterator<string>;
+}
+
+/**
+  * A typed array of 8-bit integer values. The contents are initialized to 0. If the requested 
+  * number of bytes could not be allocated an exception is raised.
+  */
+interface Int8Array {
+    [Symbol.iterator](): IterableIterator<number>;
+    /** 
+      * Returns an array of key, value pairs for every entry in the array
+      */
+    entries(): IterableIterator<[number, number]>;
+    /** 
+      * Returns an list of keys in the array
+      */
+    keys(): IterableIterator<number>;
+    /** 
+      * Returns an list of values in the array
+      */
+    values(): IterableIterator<number>;
+}
+
+interface Int8ArrayConstructor {
+    new (elements: Iterable<number>): Int8Array;
+
+    /**
+      * Creates an array from an array-like or iterable object.
+      * @param arrayLike An array-like or iterable object to convert to an array.
+      * @param mapfn A mapping function to call on every element of the array.
+      * @param thisArg Value of 'this' used to invoke the mapfn.
+      */
+    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Int8Array;
+}
+
+/**
+  * A typed array of 8-bit unsigned integer values. The contents are initialized to 0. If the 
+  * requested number of bytes could not be allocated an exception is raised.
+  */
+interface Uint8Array {
+    [Symbol.iterator](): IterableIterator<number>;
+    /** 
+      * Returns an array of key, value pairs for every entry in the array
+      */
+    entries(): IterableIterator<[number, number]>;
+    /** 
+      * Returns an list of keys in the array
+      */
+    keys(): IterableIterator<number>;
+    /** 
+      * Returns an list of values in the array
+      */
+    values(): IterableIterator<number>;
+}
+
+interface Uint8ArrayConstructor {
+    new (elements: Iterable<number>): Uint8Array;
+
+    /**
+      * Creates an array from an array-like or iterable object.
+      * @param arrayLike An array-like or iterable object to convert to an array.
+      * @param mapfn A mapping function to call on every element of the array.
+      * @param thisArg Value of 'this' used to invoke the mapfn.
+      */
+    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Uint8Array;
+}
+
+/**
+  * A typed array of 8-bit unsigned integer (clamped) values. The contents are initialized to 0. 
+  * If the requested number of bytes could not be allocated an exception is raised.
+  */
+interface Uint8ClampedArray {
+    [Symbol.iterator](): IterableIterator<number>;
+    /** 
+      * Returns an array of key, value pairs for every entry in the array
+      */
+    entries(): IterableIterator<[number, number]>;
+
+    /** 
+      * Returns an list of keys in the array
+      */
+    keys(): IterableIterator<number>;
+
+    /** 
+      * Returns an list of values in the array
+      */
+    values(): IterableIterator<number>;
+}
+
+interface Uint8ClampedArrayConstructor {
+    new (elements: Iterable<number>): Uint8ClampedArray;
+
+
+    /**
+      * Creates an array from an array-like or iterable object.
+      * @param arrayLike An array-like or iterable object to convert to an array.
+      * @param mapfn A mapping function to call on every element of the array.
+      * @param thisArg Value of 'this' used to invoke the mapfn.
+      */
+    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Uint8ClampedArray;
+}
+
+/**
+  * A typed array of 16-bit signed integer values. The contents are initialized to 0. If the 
+  * requested number of bytes could not be allocated an exception is raised.
+  */
+interface Int16Array {
+    [Symbol.iterator](): IterableIterator<number>;
+    /** 
+      * Returns an array of key, value pairs for every entry in the array
+      */
+    entries(): IterableIterator<[number, number]>;
+
+    /** 
+      * Returns an list of keys in the array
+      */
+    keys(): IterableIterator<number>;
+
+    /** 
+      * Returns an list of values in the array
+      */
+    values(): IterableIterator<number>;
+}
+
+interface Int16ArrayConstructor {
+    new (elements: Iterable<number>): Int16Array;
+
+    /**
+      * Creates an array from an array-like or iterable object.
+      * @param arrayLike An array-like or iterable object to convert to an array.
+      * @param mapfn A mapping function to call on every element of the array.
+      * @param thisArg Value of 'this' used to invoke the mapfn.
+      */
+    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Int16Array;
+}
+
+/**
+  * A typed array of 16-bit unsigned integer values. The contents are initialized to 0. If the 
+  * requested number of bytes could not be allocated an exception is raised.
+  */
+interface Uint16Array {
+    [Symbol.iterator](): IterableIterator<number>;
+    /** 
+      * Returns an array of key, value pairs for every entry in the array
+      */
+    entries(): IterableIterator<[number, number]>;
+    /** 
+      * Returns an list of keys in the array
+      */
+    keys(): IterableIterator<number>;
+    /** 
+      * Returns an list of values in the array
+      */
+    values(): IterableIterator<number>;
+}
+
+interface Uint16ArrayConstructor {
+    new (elements: Iterable<number>): Uint16Array;
+
+    /**
+      * Creates an array from an array-like or iterable object.
+      * @param arrayLike An array-like or iterable object to convert to an array.
+      * @param mapfn A mapping function to call on every element of the array.
+      * @param thisArg Value of 'this' used to invoke the mapfn.
+      */
+    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Uint16Array;
+}
+
+/**
+  * A typed array of 32-bit signed integer values. The contents are initialized to 0. If the 
+  * requested number of bytes could not be allocated an exception is raised.
+  */
+interface Int32Array {
+    [Symbol.iterator](): IterableIterator<number>;
+    /** 
+      * Returns an array of key, value pairs for every entry in the array
+      */
+    entries(): IterableIterator<[number, number]>;
+    /** 
+      * Returns an list of keys in the array
+      */
+    keys(): IterableIterator<number>;
+    /** 
+      * Returns an list of values in the array
+      */
+    values(): IterableIterator<number>;
+}
+
+interface Int32ArrayConstructor {
+    new (elements: Iterable<number>): Int32Array;
+
+    /**
+      * Creates an array from an array-like or iterable object.
+      * @param arrayLike An array-like or iterable object to convert to an array.
+      * @param mapfn A mapping function to call on every element of the array.
+      * @param thisArg Value of 'this' used to invoke the mapfn.
+      */
+    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Int32Array;
+}
+
+/**
+  * A typed array of 32-bit unsigned integer values. The contents are initialized to 0. If the 
+  * requested number of bytes could not be allocated an exception is raised.
+  */
+interface Uint32Array {
+    [Symbol.iterator](): IterableIterator<number>;
+    /** 
+      * Returns an array of key, value pairs for every entry in the array
+      */
+    entries(): IterableIterator<[number, number]>;
+    /** 
+      * Returns an list of keys in the array
+      */
+    keys(): IterableIterator<number>;
+    /** 
+      * Returns an list of values in the array
+      */
+    values(): IterableIterator<number>;
+}
+
+interface Uint32ArrayConstructor {
+    new (elements: Iterable<number>): Uint32Array;
+
+    /**
+      * Creates an array from an array-like or iterable object.
+      * @param arrayLike An array-like or iterable object to convert to an array.
+      * @param mapfn A mapping function to call on every element of the array.
+      * @param thisArg Value of 'this' used to invoke the mapfn.
+      */
+    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Uint32Array;
+}
+
+/**
+  * A typed array of 32-bit float values. The contents are initialized to 0. If the requested number
+  * of bytes could not be allocated an exception is raised.
+  */
+interface Float32Array {
+    [Symbol.iterator](): IterableIterator<number>;
+    /** 
+      * Returns an array of key, value pairs for every entry in the array
+      */
+    entries(): IterableIterator<[number, number]>;
+    /** 
+      * Returns an list of keys in the array
+      */
+    keys(): IterableIterator<number>;
+    /** 
+      * Returns an list of values in the array
+      */
+    values(): IterableIterator<number>;
+}
+
+interface Float32ArrayConstructor {
+    new (elements: Iterable<number>): Float32Array;
+
+    /**
+      * Creates an array from an array-like or iterable object.
+      * @param arrayLike An array-like or iterable object to convert to an array.
+      * @param mapfn A mapping function to call on every element of the array.
+      * @param thisArg Value of 'this' used to invoke the mapfn.
+      */
+    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Float32Array;
+}
+
+/**
+  * A typed array of 64-bit float values. The contents are initialized to 0. If the requested 
+  * number of bytes could not be allocated an exception is raised.
+  */
+interface Float64Array {
+    [Symbol.iterator](): IterableIterator<number>;
+    /** 
+      * Returns an array of key, value pairs for every entry in the array
+      */
+    entries(): IterableIterator<[number, number]>;
+    /** 
+      * Returns an list of keys in the array
+      */
+    keys(): IterableIterator<number>;
+    /** 
+      * Returns an list of values in the array
+      */
+    values(): IterableIterator<number>;
+}
+
+interface Float64ArrayConstructor {
+    new (elements: Iterable<number>): Float64Array;
+
+    /**
+      * Creates an array from an array-like or iterable object.
+      * @param arrayLike An array-like or iterable object to convert to an array.
+      * @param mapfn A mapping function to call on every element of the array.
+      * @param thisArg Value of 'this' used to invoke the mapfn.
+      */
+    from(arrayLike: Iterable<number>, mapfn?: (v: number, k: number) => number, thisArg?: any): Float64Array;
+}/**
+ * Represents the completion of an asynchronous operation
+ */
+interface Promise<T> {
+    /**
+     * Attaches callbacks for the resolution and/or rejection of the Promise.
+     * @param onfulfilled The callback to execute when the Promise is resolved.
+     * @param onrejected The callback to execute when the Promise is rejected.
+     * @returns A Promise for the completion of which ever callback is executed.
+     */
+    then<TResult1, TResult2>(onfulfilled: (value: T) => TResult1 | PromiseLike<TResult1>, onrejected: (reason: any) => TResult2 | PromiseLike<TResult2>): Promise<TResult1 | TResult2>;
+
+    /**
+     * Attaches callbacks for the resolution and/or rejection of the Promise.
+     * @param onfulfilled The callback to execute when the Promise is resolved.
+     * @param onrejected The callback to execute when the Promise is rejected.
+     * @returns A Promise for the completion of which ever callback is executed.
+     */
+    then<TResult>(onfulfilled: (value: T) => TResult | PromiseLike<TResult>, onrejected: (reason: any) => TResult | PromiseLike<TResult>): Promise<TResult>;
+
+    /**
+     * Attaches callbacks for the resolution and/or rejection of the Promise.
+     * @param onfulfilled The callback to execute when the Promise is resolved.
+     * @returns A Promise for the completion of which ever callback is executed.
+     */
+    then<TResult>(onfulfilled: (value: T) => TResult | PromiseLike<TResult>): Promise<TResult>;
+
+    /**
+     * Creates a new Promise with the same internal state of this Promise.
+     * @returns A Promise.
+     */
+    then(): Promise<T>;
+
+    /**
+     * Attaches a callback for only the rejection of the Promise.
+     * @param onrejected The callback to execute when the Promise is rejected.
+     * @returns A Promise for the completion of the callback.
+     */
+    catch<TResult>(onrejected: (reason: any) => TResult | PromiseLike<TResult>): Promise<T | TResult>;
+
+    /**
+     * Attaches a callback for only the rejection of the Promise.
+     * @param onrejected The callback to execute when the Promise is rejected.
+     * @returns A Promise for the completion of the callback.
+     */
+    catch(onrejected: (reason: any) => T | PromiseLike<T>): Promise<T>;
+}
+
+interface PromiseConstructor {
+    /**
+      * A reference to the prototype.
+      */
+    readonly prototype: Promise<any>;
+
+    /**
+     * Creates a new Promise.
+     * @param executor A callback used to initialize the promise. This callback is passed two arguments:
+     * a resolve callback used resolve the promise with a value or the result of another promise,
+     * and a reject callback used to reject the promise with a provided reason or error.
+     */
+    new <T>(executor: (resolve: (value?: T | PromiseLike<T>) => void, reject: (reason?: any) => void) => void): Promise<T>;
+
+    /**
+     * Creates a Promise that is resolved with an array of results when all of the provided Promises
+     * resolve, or rejected when any Promise is rejected.
+     * @param values An array of Promises.
+     * @returns A new Promise.
+     */
+    all<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>, T9 | PromiseLike<T9>, T10 | PromiseLike<T10>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10]>;
+
+    /**
+     * Creates a Promise that is resolved with an array of results when all of the provided Promises
+     * resolve, or rejected when any Promise is rejected.
+     * @param values An array of Promises.
+     * @returns A new Promise.
+     */
+    all<T1, T2, T3, T4, T5, T6, T7, T8, T9>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>, T9 | PromiseLike<T9>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8, T9]>;
+
+    /**
+     * Creates a Promise that is resolved with an array of results when all of the provided Promises
+     * resolve, or rejected when any Promise is rejected.
+     * @param values An array of Promises.
+     * @returns A new Promise.
+     */
+    all<T1, T2, T3, T4, T5, T6, T7, T8>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>, T8 | PromiseLike<T8>]): Promise<[T1, T2, T3, T4, T5, T6, T7, T8]>;
+
+    /**
+     * Creates a Promise that is resolved with an array of results when all of the provided Promises
+     * resolve, or rejected when any Promise is rejected.
+     * @param values An array of Promises.
+     * @returns A new Promise.
+     */
+    all<T1, T2, T3, T4, T5, T6, T7>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>, T7 | PromiseLike<T7>]): Promise<[T1, T2, T3, T4, T5, T6, T7]>;
+
+    /**
+     * Creates a Promise that is resolved with an array of results when all of the provided Promises
+     * resolve, or rejected when any Promise is rejected.
+     * @param values An array of Promises.
+     * @returns A new Promise.
+     */
+    all<T1, T2, T3, T4, T5, T6>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>, T6 | PromiseLike<T6>]): Promise<[T1, T2, T3, T4, T5, T6]>;
+
+    /**
+     * Creates a Promise that is resolved with an array of results when all of the provided Promises
+     * resolve, or rejected when any Promise is rejected.
+     * @param values An array of Promises.
+     * @returns A new Promise.
+     */
+    all<T1, T2, T3, T4, T5>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>, T5 | PromiseLike<T5>]): Promise<[T1, T2, T3, T4, T5]>;
+
+    /**
+     * Creates a Promise that is resolved with an array of results when all of the provided Promises
+     * resolve, or rejected when any Promise is rejected.
+     * @param values An array of Promises.
+     * @returns A new Promise.
+     */
+    all<T1, T2, T3, T4>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>, T4 | PromiseLike <T4>]): Promise<[T1, T2, T3, T4]>;
+
+    /**
+     * Creates a Promise that is resolved with an array of results when all of the provided Promises
+     * resolve, or rejected when any Promise is rejected.
+     * @param values An array of Promises.
+     * @returns A new Promise.
+     */
+    all<T1, T2, T3>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>, T3 | PromiseLike<T3>]): Promise<[T1, T2, T3]>;
+
+    /**
+     * Creates a Promise that is resolved with an array of results when all of the provided Promises
+     * resolve, or rejected when any Promise is rejected.
+     * @param values An array of Promises.
+     * @returns A new Promise.
+     */
+    all<T1, T2>(values: [T1 | PromiseLike<T1>, T2 | PromiseLike<T2>]): Promise<[T1, T2]>;
+
+    /**
+     * Creates a Promise that is resolved with an array of results when all of the provided Promises
+     * resolve, or rejected when any Promise is rejected.
+     * @param values An array of Promises.
+     * @returns A new Promise.
+     */
+    all<T>(values: (T | PromiseLike<T>)[]): Promise<T[]>;
+
+    /**
+     * Creates a new rejected promise for the provided reason.
+     * @param reason The reason the promise was rejected.
+     * @returns A new rejected Promise.
+     */
+    reject(reason: any): Promise<never>;
+
+    /**
+     * Creates a new rejected promise for the provided reason.
+     * @param reason The reason the promise was rejected.
+     * @returns A new rejected Promise.
+     */
+    reject<T>(reason: any): Promise<T>;
+
+    /**
+      * Creates a new resolved promise for the provided value.
+      * @param value A promise.
+      * @returns A promise whose internal state matches the provided promise.
+      */
+    resolve<T>(value: T | PromiseLike<T>): Promise<T>;
+
+    /**
+     * Creates a new resolved promise .
+     * @returns A resolved promise.
+     */
+    resolve(): Promise<void>;
+}
+
+declare var Promise: PromiseConstructor;interface ProxyHandler<T> {
+    getPrototypeOf? (target: T): any;
+    setPrototypeOf? (target: T, v: any): boolean;
+    isExtensible? (target: T): boolean;
+    preventExtensions? (target: T): boolean;
+    getOwnPropertyDescriptor? (target: T, p: PropertyKey): PropertyDescriptor;
+    has? (target: T, p: PropertyKey): boolean;
+    get? (target: T, p: PropertyKey, receiver: any): any;
+    set? (target: T, p: PropertyKey, value: any, receiver: any): boolean;
+    deleteProperty? (target: T, p: PropertyKey): boolean;
+    defineProperty? (target: T, p: PropertyKey, attributes: PropertyDescriptor): boolean;
+    enumerate? (target: T): PropertyKey[];
+    ownKeys? (target: T): PropertyKey[];
+    apply? (target: T, thisArg: any, argArray?: any): any;
+    construct? (target: T, thisArg: any, argArray?: any): any;
+}
+
+interface ProxyConstructor {
+    revocable<T>(target: T, handler: ProxyHandler<T>): { proxy: T; revoke: () => void; };
+    new <T>(target: T, handler: ProxyHandler<T>): T
+}
+declare var Proxy: ProxyConstructor;declare namespace Reflect {
+    function apply(target: Function, thisArgument: any, argumentsList: ArrayLike<any>): any;
+    function construct(target: Function, argumentsList: ArrayLike<any>, newTarget?: any): any;
+    function defineProperty(target: any, propertyKey: PropertyKey, attributes: PropertyDescriptor): boolean;
+    function deleteProperty(target: any, propertyKey: PropertyKey): boolean;
+    function get(target: any, propertyKey: PropertyKey, receiver?: any): any;
+    function getOwnPropertyDescriptor(target: any, propertyKey: PropertyKey): PropertyDescriptor;
+    function getPrototypeOf(target: any): any;
+    function has(target: any, propertyKey: string): boolean;
+    function has(target: any, propertyKey: symbol): boolean;
+    function isExtensible(target: any): boolean;
+    function ownKeys(target: any): Array<PropertyKey>;
+    function preventExtensions(target: any): boolean;
+    function set(target: any, propertyKey: PropertyKey, value: any, receiver?: any): boolean;
+    function setPrototypeOf(target: any, proto: any): boolean;
+}interface Symbol {
+    /** Returns a string representation of an object. */
+    toString(): string;
+
+    /** Returns the primitive value of the specified object. */
+    valueOf(): Object;
+}
+
+interface SymbolConstructor {
+    /** 
+      * A reference to the prototype. 
+      */
+    readonly prototype: Symbol;
+
+    /**
+      * Returns a new unique Symbol value.
+      * @param  description Description of the new Symbol object.
+      */
+    (description?: string|number): symbol;
+
+    /**
+      * Returns a Symbol object from the global symbol registry matching the given key if found. 
+      * Otherwise, returns a new symbol with this key.
+      * @param key key to search for.
+      */
+    for(key: string): symbol;
+
+    /**
+      * Returns a key from the global symbol registry matching the given Symbol if found. 
+      * Otherwise, returns a undefined.
+      * @param sym Symbol to find the key for.
+      */
+    keyFor(sym: symbol): string | undefined;
+}
+
+declare var Symbol: SymbolConstructor;/// <reference path="lib.es2015.symbol.d.ts" />
+
+interface SymbolConstructor {
+    /** 
+      * A method that determines if a constructor object recognizes an object as one of the 
+      * constructor’s instances. Called by the semantics of the instanceof operator. 
+      */
+    readonly hasInstance: symbol;
+
+    /** 
+      * A Boolean value that if true indicates that an object should flatten to its array elements
+      * by Array.prototype.concat.
+      */
+    readonly isConcatSpreadable: symbol;
+
+    /**
+      * A regular expression method that matches the regular expression against a string. Called 
+      * by the String.prototype.match method. 
+      */
+    readonly match: symbol;
+
+    /** 
+      * A regular expression method that replaces matched substrings of a string. Called by the 
+      * String.prototype.replace method.
+      */
+    readonly replace: symbol;
+
+    /**
+      * A regular expression method that returns the index within a string that matches the 
+      * regular expression. Called by the String.prototype.search method.
+      */
+    readonly search: symbol;
+
+    /** 
+      * A function valued property that is the constructor function that is used to create 
+      * derived objects.
+      */
+    readonly species: symbol;
+
+    /**
+      * A regular expression method that splits a string at the indices that match the regular 
+      * expression. Called by the String.prototype.split method.
+      */
+    readonly split: symbol;
+
+    /** 
+      * A method that converts an object to a corresponding primitive value.
+      * Called by the ToPrimitive abstract operation.
+      */
+    readonly toPrimitive: symbol;
+
+    /** 
+      * A String value that is used in the creation of the default string description of an object.
+      * Called by the built-in method Object.prototype.toString.
+      */
+    readonly toStringTag: symbol;
+
+    /**
+      * An Object whose own property names are property names that are excluded from the 'with'
+      * environment bindings of the associated objects.
+      */
+    readonly unscopables: symbol;
+}
+
+interface Symbol {
+    readonly [Symbol.toStringTag]: "Symbol";
+}
+
+interface Array<T> {
+    /**
+     * Returns an object whose properties have the value 'true'
+     * when they will be absent when used in a 'with' statement.
+     */
+    [Symbol.unscopables](): {
+        copyWithin: boolean;
+        entries: boolean;
+        fill: boolean;
+        find: boolean;
+        findIndex: boolean;
+        keys: boolean;
+        values: boolean;
+    };
+}
+
+interface Date {
+    /**
+     * Converts a Date object to a string.
+     */
+    [Symbol.toPrimitive](hint: "default"): string;
+    /**
+     * Converts a Date object to a string.
+     */
+    [Symbol.toPrimitive](hint: "string"): string;
+    /**
+     * Converts a Date object to a number.
+     */
+    [Symbol.toPrimitive](hint: "number"): number;
+    /**
+     * Converts a Date object to a string or number.
+     *
+     * @param hint The strings "number", "string", or "default" to specify what primitive to return.
+     *
+     * @throws {TypeError} If 'hint' was given something other than "number", "string", or "default".
+     * @returns A number if 'hint' was "number", a string if 'hint' was "string" or "default".
+     */
+    [Symbol.toPrimitive](hint: string): string | number;
+}
+
+interface Map<K, V> {
+    readonly [Symbol.toStringTag]: "Map";
+}
+
+interface WeakMap<K, V>{
+    readonly [Symbol.toStringTag]: "WeakMap";
+}
+
+interface Set<T> {
+    readonly [Symbol.toStringTag]: "Set";
+}
+
+interface WeakSet<T> {
+    readonly [Symbol.toStringTag]: "WeakSet";
+}
+
+interface JSON {
+    readonly [Symbol.toStringTag]: "JSON";
+}
+
+interface Function {
+    /**
+     * Determines whether the given value inherits from this function if this function was used
+     * as a constructor function.
+     *
+     * A constructor function can control which objects are recognized as its instances by
+     * 'instanceof' by overriding this method.
+     */
+    [Symbol.hasInstance](value: any): boolean;
+}
+
+interface GeneratorFunction extends Function {
+    readonly [Symbol.toStringTag]: "GeneratorFunction";
+}
+
+interface Math {
+    readonly [Symbol.toStringTag]: "Math";
+}
+
+interface Promise<T> {
+    readonly [Symbol.toStringTag]: "Promise";
+}
+
+interface PromiseConstructor {
+    readonly [Symbol.species]: Function;
+}
+
+interface RegExp {
+        /**
+      * Matches a string with this regular expression, and returns an array containing the results of
+      * that search.
+      * @param string A string to search within.
+      */
+    [Symbol.match](string: string): RegExpMatchArray | null;
+
+    /**
+      * Replaces text in a string, using this regular expression.
+      * @param string A String object or string literal whose contents matching against
+      *               this regular expression will be replaced
+      * @param replaceValue A String object or string literal containing the text to replace for every 
+      *                     successful match of this regular expression.
+      */
+    [Symbol.replace](string: string, replaceValue: string): string;
+
+    /**
+      * Replaces text in a string, using this regular expression.
+      * @param string A String object or string literal whose contents matching against
+      *               this regular expression will be replaced
+      * @param replacer A function that returns the replacement text.
+      */
+    [Symbol.replace](string: string, replacer: (substring: string, ...args: any[]) => string): string;
+
+    /**
+      * Finds the position beginning first substring match in a regular expression search
+      * using this regular expression.
+      *
+      * @param string The string to search within.
+      */
+    [Symbol.search](string: string): number;
+
+    /**
+      * Returns an array of substrings that were delimited by strings in the original input that
+      * match against this regular expression.
+      *
+      * If the regular expression contains capturing parentheses, then each time this
+      * regular expression matches, the results (including any undefined results) of the
+      * capturing parentheses are spliced.
+      *
+      * @param string string value to split
+      * @param limit if not undefined, the output array is truncated so that it contains no more
+      * than 'limit' elements.
+      */
+    [Symbol.split](string: string, limit?: number): string[];
+}
+
+interface RegExpConstructor {
+    [Symbol.species](): RegExpConstructor;
+}
+
+interface String {
+    /**
+      * Matches a string an object that supports being matched against, and returns an array containing the results of that search.
+      * @param matcher An object that supports being matched against.
+      */
+    match(matcher: { [Symbol.match](string: string): RegExpMatchArray | null; }): RegExpMatchArray | null;
+
+    /**
+      * Replaces text in a string, using an object that supports replacement within a string.
+      * @param searchValue A object can search for and replace matches within a string.
+      * @param replaceValue A string containing the text to replace for every successful match of searchValue in this string.
+      */
+    replace(searchValue: { [Symbol.replace](string: string, replaceValue: string): string; }, replaceValue: string): string;
+
+    /**
+      * Replaces text in a string, using an object that supports replacement within a string.
+      * @param searchValue A object can search for and replace matches within a string.
+      * @param replacer A function that returns the replacement text.
+      */
+    replace(searchValue: { [Symbol.replace](string: string, replacer: (substring: string, ...args: any[]) => string): string; }, replacer: (substring: string, ...args: any[]) => string): string;
 
+    /**
+      * Finds the first substring match in a regular expression search.
+      * @param searcher An object which supports searching within a string.
+      */
+    search(searcher: { [Symbol.search](string: string): number; }): number;
 
+    /**
+      * Split a string into substrings using the specified separator and return them as an array.
+      * @param splitter An object that can split a string.
+      * @param limit A value used to limit the number of elements returned in the array.
+      */
+    split(splitter: { [Symbol.split](string: string, limit?: number): string[]; }, limit?: number): string[];
+}
+
+/**
+  * Represents a raw buffer of binary data, which is used to store data for the 
+  * different typed arrays. ArrayBuffers cannot be read from or written to directly, 
+  * but can be passed to a typed array or DataView Object to interpret the raw 
+  * buffer as needed. 
+  */
+interface ArrayBuffer {
+    readonly [Symbol.toStringTag]: "ArrayBuffer";
+}
+
+interface DataView {
+    readonly [Symbol.toStringTag]: "DataView";
+}
+
+/**
+  * A typed array of 8-bit integer values. The contents are initialized to 0. If the requested 
+  * number of bytes could not be allocated an exception is raised.
+  */
+interface Int8Array {
+    readonly [Symbol.toStringTag]: "Int8Array";
+}
+
+/**
+  * A typed array of 8-bit unsigned integer values. The contents are initialized to 0. If the 
+  * requested number of bytes could not be allocated an exception is raised.
+  */
+interface Uint8Array {
+    readonly [Symbol.toStringTag]: "UInt8Array";
+}
+
+/**
+  * A typed array of 8-bit unsigned integer (clamped) values. The contents are initialized to 0. 
+  * If the requested number of bytes could not be allocated an exception is raised.
+  */
+interface Uint8ClampedArray {
+    readonly [Symbol.toStringTag]: "Uint8ClampedArray";
+}
+
+/**
+  * A typed array of 16-bit signed integer values. The contents are initialized to 0. If the 
+  * requested number of bytes could not be allocated an exception is raised.
+  */
+interface Int16Array {
+    readonly [Symbol.toStringTag]: "Int16Array";
+}
+
+/**
+  * A typed array of 16-bit unsigned integer values. The contents are initialized to 0. If the 
+  * requested number of bytes could not be allocated an exception is raised.
+  */
+interface Uint16Array {
+    readonly [Symbol.toStringTag]: "Uint16Array";
+}
+
+/**
+  * A typed array of 32-bit signed integer values. The contents are initialized to 0. If the 
+  * requested number of bytes could not be allocated an exception is raised.
+  */
+interface Int32Array {
+    readonly [Symbol.toStringTag]: "Int32Array";
+}
+
+/**
+  * A typed array of 32-bit unsigned integer values. The contents are initialized to 0. If the 
+  * requested number of bytes could not be allocated an exception is raised.
+  */
+interface Uint32Array {
+    readonly [Symbol.toStringTag]: "Uint32Array";
+}
+
+/**
+  * A typed array of 32-bit float values. The contents are initialized to 0. If the requested number
+  * of bytes could not be allocated an exception is raised.
+  */
+interface Float32Array {
+    readonly [Symbol.toStringTag]: "Float32Array";
+}
+
+/**
+  * A typed array of 64-bit float values. The contents are initialized to 0. If the requested 
+  * number of bytes could not be allocated an exception is raised.
+  */
+interface Float64Array {
+    readonly [Symbol.toStringTag]: "Float64Array";
+}
 /////////////////////////////
 /// IE DOM APIs
 /////////////////////////////
 
 interface Algorithm {
-    name?: string;
+    name: string;
 }
 
 interface AriaRequestEventInit extends EventInit {
@@ -5386,11 +5752,6 @@ interface AriaRequestEventInit extends EventInit {
     attributeValue?: string;
 }
 
-interface ClipboardEventInit extends EventInit {
-    data?: string;
-    dataType?: string;
-}
-
 interface CommandEventInit extends EventInit {
     commandName?: string;
     detail?: string;
@@ -5404,6 +5765,31 @@ interface ConfirmSiteSpecificExceptionsInformation extends ExceptionInformation
     arrayOfDomainStrings?: string[];
 }
 
+interface ConstrainBooleanParameters {
+    exact?: boolean;
+    ideal?: boolean;
+}
+
+interface ConstrainDOMStringParameters {
+    exact?: string | string[];
+    ideal?: string | string[];
+}
+
+interface ConstrainDoubleRange extends DoubleRange {
+    exact?: number;
+    ideal?: number;
+}
+
+interface ConstrainLongRange extends LongRange {
+    exact?: number;
+    ideal?: number;
+}
+
+interface ConstrainVideoFacingModeParameters {
+    exact?: string | string[];
+    ideal?: string | string[];
+}
+
 interface CustomEventInit extends EventInit {
     detail?: any;
 }
@@ -5414,17 +5800,44 @@ interface DeviceAccelerationDict {
     z?: number;
 }
 
+interface DeviceLightEventInit extends EventInit {
+    value?: number;
+}
+
 interface DeviceRotationRateDict {
     alpha?: number;
     beta?: number;
     gamma?: number;
 }
 
+interface DoubleRange {
+    max?: number;
+    min?: number;
+}
+
 interface EventInit {
     bubbles?: boolean;
     cancelable?: boolean;
 }
 
+interface EventModifierInit extends UIEventInit {
+    ctrlKey?: boolean;
+    shiftKey?: boolean;
+    altKey?: boolean;
+    metaKey?: boolean;
+    modifierAltGraph?: boolean;
+    modifierCapsLock?: boolean;
+    modifierFn?: boolean;
+    modifierFnLock?: boolean;
+    modifierHyper?: boolean;
+    modifierNumLock?: boolean;
+    modifierOS?: boolean;
+    modifierScrollLock?: boolean;
+    modifierSuper?: boolean;
+    modifierSymbol?: boolean;
+    modifierSymbolLock?: boolean;
+}
+
 interface ExceptionInformation {
     domain?: string;
 }
@@ -5438,17 +5851,416 @@ interface HashChangeEventInit extends EventInit {
     oldURL?: string;
 }
 
+interface IDBIndexParameters {
+    multiEntry?: boolean;
+    unique?: boolean;
+}
+
+interface IDBObjectStoreParameters {
+    autoIncrement?: boolean;
+    keyPath?: IDBKeyPath;
+}
+
 interface KeyAlgorithm {
     name?: string;
 }
 
-interface KeyboardEventInit extends SharedKeyboardAndMouseEventInit {
+interface KeyboardEventInit extends EventModifierInit {
+    code?: string;
     key?: string;
     location?: number;
     repeat?: boolean;
 }
 
-interface MouseEventInit extends SharedKeyboardAndMouseEventInit {
+interface LongRange {
+    max?: number;
+    min?: number;
+}
+
+interface MSAccountInfo {
+    rpDisplayName?: string;
+    userDisplayName?: string;
+    accountName?: string;
+    userId?: string;
+    accountImageUri?: string;
+}
+
+interface MSAudioLocalClientEvent extends MSLocalClientEventBase {
+    networkSendQualityEventRatio?: number;
+    networkDelayEventRatio?: number;
+    cpuInsufficientEventRatio?: number;
+    deviceHalfDuplexAECEventRatio?: number;
+    deviceRenderNotFunctioningEventRatio?: number;
+    deviceCaptureNotFunctioningEventRatio?: number;
+    deviceGlitchesEventRatio?: number;
+    deviceLowSNREventRatio?: number;
+    deviceLowSpeechLevelEventRatio?: number;
+    deviceClippingEventRatio?: number;
+    deviceEchoEventRatio?: number;
+    deviceNearEndToEchoRatioEventRatio?: number;
+    deviceRenderZeroVolumeEventRatio?: number;
+    deviceRenderMuteEventRatio?: number;
+    deviceMultipleEndpointsEventCount?: number;
+    deviceHowlingEventCount?: number;
+}
+
+interface MSAudioRecvPayload extends MSPayloadBase {
+    samplingRate?: number;
+    signal?: MSAudioRecvSignal;
+    packetReorderRatio?: number;
+    packetReorderDepthAvg?: number;
+    packetReorderDepthMax?: number;
+    burstLossLength1?: number;
+    burstLossLength2?: number;
+    burstLossLength3?: number;
+    burstLossLength4?: number;
+    burstLossLength5?: number;
+    burstLossLength6?: number;
+    burstLossLength7?: number;
+    burstLossLength8OrHigher?: number;
+    fecRecvDistance1?: number;
+    fecRecvDistance2?: number;
+    fecRecvDistance3?: number;
+    ratioConcealedSamplesAvg?: number;
+    ratioStretchedSamplesAvg?: number;
+    ratioCompressedSamplesAvg?: number;
+}
+
+interface MSAudioRecvSignal {
+    initialSignalLevelRMS?: number;
+    recvSignalLevelCh1?: number;
+    recvNoiseLevelCh1?: number;
+    renderSignalLevel?: number;
+    renderNoiseLevel?: number;
+    renderLoopbackSignalLevel?: number;
+}
+
+interface MSAudioSendPayload extends MSPayloadBase {
+    samplingRate?: number;
+    signal?: MSAudioSendSignal;
+    audioFECUsed?: boolean;
+    sendMutePercent?: number;
+}
+
+interface MSAudioSendSignal {
+    noiseLevel?: number;
+    sendSignalLevelCh1?: number;
+    sendNoiseLevelCh1?: number;
+}
+
+interface MSConnectivity {
+    iceType?: string;
+    iceWarningFlags?: MSIceWarningFlags;
+    relayAddress?: MSRelayAddress;
+}
+
+interface MSCredentialFilter {
+    accept?: MSCredentialSpec[];
+}
+
+interface MSCredentialParameters {
+    type?: string;
+}
+
+interface MSCredentialSpec {
+    type?: string;
+    id?: string;
+}
+
+interface MSDelay {
+    roundTrip?: number;
+    roundTripMax?: number;
+}
+
+interface MSDescription extends RTCStats {
+    connectivity?: MSConnectivity;
+    transport?: string;
+    networkconnectivity?: MSNetworkConnectivityInfo;
+    localAddr?: MSIPAddressInfo;
+    remoteAddr?: MSIPAddressInfo;
+    deviceDevName?: string;
+    reflexiveLocalIPAddr?: MSIPAddressInfo;
+}
+
+interface MSFIDOCredentialParameters extends MSCredentialParameters {
+    algorithm?: string | Algorithm;
+    authenticators?: AAGUID[];
+}
+
+interface MSIPAddressInfo {
+    ipAddr?: string;
+    port?: number;
+    manufacturerMacAddrMask?: string;
+}
+
+interface MSIceWarningFlags {
+    turnTcpTimedOut?: boolean;
+    turnUdpAllocateFailed?: boolean;
+    turnUdpSendFailed?: boolean;
+    turnTcpAllocateFailed?: boolean;
+    turnTcpSendFailed?: boolean;
+    udpLocalConnectivityFailed?: boolean;
+    udpNatConnectivityFailed?: boolean;
+    udpRelayConnectivityFailed?: boolean;
+    tcpNatConnectivityFailed?: boolean;
+    tcpRelayConnectivityFailed?: boolean;
+    connCheckMessageIntegrityFailed?: boolean;
+    allocationMessageIntegrityFailed?: boolean;
+    connCheckOtherError?: boolean;
+    turnAuthUnknownUsernameError?: boolean;
+    noRelayServersConfigured?: boolean;
+    multipleRelayServersAttempted?: boolean;
+    portRangeExhausted?: boolean;
+    alternateServerReceived?: boolean;
+    pseudoTLSFailure?: boolean;
+    turnTurnTcpConnectivityFailed?: boolean;
+    useCandidateChecksFailed?: boolean;
+    fipsAllocationFailure?: boolean;
+}
+
+interface MSJitter {
+    interArrival?: number;
+    interArrivalMax?: number;
+    interArrivalSD?: number;
+}
+
+interface MSLocalClientEventBase extends RTCStats {
+    networkReceiveQualityEventRatio?: number;
+    networkBandwidthLowEventRatio?: number;
+}
+
+interface MSNetwork extends RTCStats {
+    jitter?: MSJitter;
+    delay?: MSDelay;
+    packetLoss?: MSPacketLoss;
+    utilization?: MSUtilization;
+}
+
+interface MSNetworkConnectivityInfo {
+    vpn?: boolean;
+    linkspeed?: number;
+    networkConnectionDetails?: string;
+}
+
+interface MSNetworkInterfaceType {
+    interfaceTypeEthernet?: boolean;
+    interfaceTypeWireless?: boolean;
+    interfaceTypePPP?: boolean;
+    interfaceTypeTunnel?: boolean;
+    interfaceTypeWWAN?: boolean;
+}
+
+interface MSOutboundNetwork extends MSNetwork {
+    appliedBandwidthLimit?: number;
+}
+
+interface MSPacketLoss {
+    lossRate?: number;
+    lossRateMax?: number;
+}
+
+interface MSPayloadBase extends RTCStats {
+    payloadDescription?: string;
+}
+
+interface MSRelayAddress {
+    relayAddress?: string;
+    port?: number;
+}
+
+interface MSSignatureParameters {
+    userPrompt?: string;
+}
+
+interface MSTransportDiagnosticsStats extends RTCStats {
+    baseAddress?: string;
+    localAddress?: string;
+    localSite?: string;
+    networkName?: string;
+    remoteAddress?: string;
+    remoteSite?: string;
+    localMR?: string;
+    remoteMR?: string;
+    iceWarningFlags?: MSIceWarningFlags;
+    portRangeMin?: number;
+    portRangeMax?: number;
+    localMRTCPPort?: number;
+    remoteMRTCPPort?: number;
+    stunVer?: number;
+    numConsentReqSent?: number;
+    numConsentReqReceived?: number;
+    numConsentRespSent?: number;
+    numConsentRespReceived?: number;
+    interfaces?: MSNetworkInterfaceType;
+    baseInterface?: MSNetworkInterfaceType;
+    protocol?: string;
+    localInterface?: MSNetworkInterfaceType;
+    localAddrType?: string;
+    remoteAddrType?: string;
+    iceRole?: string;
+    rtpRtcpMux?: boolean;
+    allocationTimeInMs?: number;
+    msRtcEngineVersion?: string;
+}
+
+interface MSUtilization {
+    packets?: number;
+    bandwidthEstimation?: number;
+    bandwidthEstimationMin?: number;
+    bandwidthEstimationMax?: number;
+    bandwidthEstimationStdDev?: number;
+    bandwidthEstimationAvg?: number;
+}
+
+interface MSVideoPayload extends MSPayloadBase {
+    resoluton?: string;
+    videoBitRateAvg?: number;
+    videoBitRateMax?: number;
+    videoFrameRateAvg?: number;
+    videoPacketLossRate?: number;
+    durationSeconds?: number;
+}
+
+interface MSVideoRecvPayload extends MSVideoPayload {
+    videoFrameLossRate?: number;
+    recvCodecType?: string;
+    recvResolutionWidth?: number;
+    recvResolutionHeight?: number;
+    videoResolutions?: MSVideoResolutionDistribution;
+    recvFrameRateAverage?: number;
+    recvBitRateMaximum?: number;
+    recvBitRateAverage?: number;
+    recvVideoStreamsMax?: number;
+    recvVideoStreamsMin?: number;
+    recvVideoStreamsMode?: number;
+    videoPostFECPLR?: number;
+    lowBitRateCallPercent?: number;
+    lowFrameRateCallPercent?: number;
+    reorderBufferTotalPackets?: number;
+    recvReorderBufferReorderedPackets?: number;
+    recvReorderBufferPacketsDroppedDueToBufferExhaustion?: number;
+    recvReorderBufferMaxSuccessfullyOrderedExtent?: number;
+    recvReorderBufferMaxSuccessfullyOrderedLateTime?: number;
+    recvReorderBufferPacketsDroppedDueToTimeout?: number;
+    recvFpsHarmonicAverage?: number;
+    recvNumResSwitches?: number;
+}
+
+interface MSVideoResolutionDistribution {
+    cifQuality?: number;
+    vgaQuality?: number;
+    h720Quality?: number;
+    h1080Quality?: number;
+    h1440Quality?: number;
+    h2160Quality?: number;
+}
+
+interface MSVideoSendPayload extends MSVideoPayload {
+    sendFrameRateAverage?: number;
+    sendBitRateMaximum?: number;
+    sendBitRateAverage?: number;
+    sendVideoStreamsMax?: number;
+    sendResolutionWidth?: number;
+    sendResolutionHeight?: number;
+}
+
+interface MediaEncryptedEventInit extends EventInit {
+    initDataType?: string;
+    initData?: ArrayBuffer;
+}
+
+interface MediaKeyMessageEventInit extends EventInit {
+    messageType?: string;
+    message?: ArrayBuffer;
+}
+
+interface MediaKeySystemConfiguration {
+    initDataTypes?: string[];
+    audioCapabilities?: MediaKeySystemMediaCapability[];
+    videoCapabilities?: MediaKeySystemMediaCapability[];
+    distinctiveIdentifier?: string;
+    persistentState?: string;
+}
+
+interface MediaKeySystemMediaCapability {
+    contentType?: string;
+    robustness?: string;
+}
+
+interface MediaStreamConstraints {
+    video?: boolean | MediaTrackConstraints;
+    audio?: boolean | MediaTrackConstraints;
+}
+
+interface MediaStreamErrorEventInit extends EventInit {
+    error?: MediaStreamError;
+}
+
+interface MediaStreamTrackEventInit extends EventInit {
+    track?: MediaStreamTrack;
+}
+
+interface MediaTrackCapabilities {
+    width?: number | LongRange;
+    height?: number | LongRange;
+    aspectRatio?: number | DoubleRange;
+    frameRate?: number | DoubleRange;
+    facingMode?: string;
+    volume?: number | DoubleRange;
+    sampleRate?: number | LongRange;
+    sampleSize?: number | LongRange;
+    echoCancellation?: boolean[];
+    deviceId?: string;
+    groupId?: string;
+}
+
+interface MediaTrackConstraintSet {
+    width?: number | ConstrainLongRange;
+    height?: number | ConstrainLongRange;
+    aspectRatio?: number | ConstrainDoubleRange;
+    frameRate?: number | ConstrainDoubleRange;
+    facingMode?: string | string[] | ConstrainDOMStringParameters;
+    volume?: number | ConstrainDoubleRange;
+    sampleRate?: number | ConstrainLongRange;
+    sampleSize?: number | ConstrainLongRange;
+    echoCancelation?: boolean | ConstrainBooleanParameters;
+    deviceId?: string | string[] | ConstrainDOMStringParameters;
+    groupId?: string | string[] | ConstrainDOMStringParameters;
+}
+
+interface MediaTrackConstraints extends MediaTrackConstraintSet {
+    advanced?: MediaTrackConstraintSet[];
+}
+
+interface MediaTrackSettings {
+    width?: number;
+    height?: number;
+    aspectRatio?: number;
+    frameRate?: number;
+    facingMode?: string;
+    volume?: number;
+    sampleRate?: number;
+    sampleSize?: number;
+    echoCancellation?: boolean;
+    deviceId?: string;
+    groupId?: string;
+}
+
+interface MediaTrackSupportedConstraints {
+    width?: boolean;
+    height?: boolean;
+    aspectRatio?: boolean;
+    frameRate?: boolean;
+    facingMode?: boolean;
+    volume?: boolean;
+    sampleRate?: boolean;
+    sampleSize?: boolean;
+    echoCancellation?: boolean;
+    deviceId?: boolean;
+    groupId?: boolean;
+}
+
+interface MouseEventInit extends EventModifierInit {
     screenX?: number;
     screenY?: number;
     clientX?: number;
@@ -5481,6 +6293,10 @@ interface ObjectURLOptions {
     oneTimeOnly?: boolean;
 }
 
+interface PeriodicWaveConstraints {
+    disableNormalization?: boolean;
+}
+
 interface PointerEventInit extends MouseEventInit {
     pointerId?: number;
     width?: number;
@@ -5498,22 +6314,266 @@ interface PositionOptions {
     maximumAge?: number;
 }
 
-interface SharedKeyboardAndMouseEventInit extends UIEventInit {
-    ctrlKey?: boolean;
-    shiftKey?: boolean;
-    altKey?: boolean;
-    metaKey?: boolean;
-    keyModifierStateAltGraph?: boolean;
-    keyModifierStateCapsLock?: boolean;
-    keyModifierStateFn?: boolean;
-    keyModifierStateFnLock?: boolean;
-    keyModifierStateHyper?: boolean;
-    keyModifierStateNumLock?: boolean;
-    keyModifierStateOS?: boolean;
-    keyModifierStateScrollLock?: boolean;
-    keyModifierStateSuper?: boolean;
-    keyModifierStateSymbol?: boolean;
-    keyModifierStateSymbolLock?: boolean;
+interface RTCDTMFToneChangeEventInit extends EventInit {
+    tone?: string;
+}
+
+interface RTCDtlsFingerprint {
+    algorithm?: string;
+    value?: string;
+}
+
+interface RTCDtlsParameters {
+    role?: string;
+    fingerprints?: RTCDtlsFingerprint[];
+}
+
+interface RTCIceCandidate {
+    foundation?: string;
+    priority?: number;
+    ip?: string;
+    protocol?: string;
+    port?: number;
+    type?: string;
+    tcpType?: string;
+    relatedAddress?: string;
+    relatedPort?: number;
+}
+
+interface RTCIceCandidateAttributes extends RTCStats {
+    ipAddress?: string;
+    portNumber?: number;
+    transport?: string;
+    candidateType?: string;
+    priority?: number;
+    addressSourceUrl?: string;
+}
+
+interface RTCIceCandidateComplete {
+}
+
+interface RTCIceCandidatePair {
+    local?: RTCIceCandidate;
+    remote?: RTCIceCandidate;
+}
+
+interface RTCIceCandidatePairStats extends RTCStats {
+    transportId?: string;
+    localCandidateId?: string;
+    remoteCandidateId?: string;
+    state?: string;
+    priority?: number;
+    nominated?: boolean;
+    writable?: boolean;
+    readable?: boolean;
+    bytesSent?: number;
+    bytesReceived?: number;
+    roundTripTime?: number;
+    availableOutgoingBitrate?: number;
+    availableIncomingBitrate?: number;
+}
+
+interface RTCIceGatherOptions {
+    gatherPolicy?: string;
+    iceservers?: RTCIceServer[];
+}
+
+interface RTCIceParameters {
+    usernameFragment?: string;
+    password?: string;
+}
+
+interface RTCIceServer {
+    urls?: any;
+    username?: string;
+    credential?: string;
+}
+
+interface RTCInboundRTPStreamStats extends RTCRTPStreamStats {
+    packetsReceived?: number;
+    bytesReceived?: number;
+    packetsLost?: number;
+    jitter?: number;
+    fractionLost?: number;
+}
+
+interface RTCMediaStreamTrackStats extends RTCStats {
+    trackIdentifier?: string;
+    remoteSource?: boolean;
+    ssrcIds?: string[];
+    frameWidth?: number;
+    frameHeight?: number;
+    framesPerSecond?: number;
+    framesSent?: number;
+    framesReceived?: number;
+    framesDecoded?: number;
+    framesDropped?: number;
+    framesCorrupted?: number;
+    audioLevel?: number;
+    echoReturnLoss?: number;
+    echoReturnLossEnhancement?: number;
+}
+
+interface RTCOutboundRTPStreamStats extends RTCRTPStreamStats {
+    packetsSent?: number;
+    bytesSent?: number;
+    targetBitrate?: number;
+    roundTripTime?: number;
+}
+
+interface RTCRTPStreamStats extends RTCStats {
+    ssrc?: string;
+    associateStatsId?: string;
+    isRemote?: boolean;
+    mediaTrackId?: string;
+    transportId?: string;
+    codecId?: string;
+    firCount?: number;
+    pliCount?: number;
+    nackCount?: number;
+    sliCount?: number;
+}
+
+interface RTCRtcpFeedback {
+    type?: string;
+    parameter?: string;
+}
+
+interface RTCRtcpParameters {
+    ssrc?: number;
+    cname?: string;
+    reducedSize?: boolean;
+    mux?: boolean;
+}
+
+interface RTCRtpCapabilities {
+    codecs?: RTCRtpCodecCapability[];
+    headerExtensions?: RTCRtpHeaderExtension[];
+    fecMechanisms?: string[];
+}
+
+interface RTCRtpCodecCapability {
+    name?: string;
+    kind?: string;
+    clockRate?: number;
+    preferredPayloadType?: number;
+    maxptime?: number;
+    numChannels?: number;
+    rtcpFeedback?: RTCRtcpFeedback[];
+    parameters?: any;
+    options?: any;
+    maxTemporalLayers?: number;
+    maxSpatialLayers?: number;
+    svcMultiStreamSupport?: boolean;
+}
+
+interface RTCRtpCodecParameters {
+    name?: string;
+    payloadType?: any;
+    clockRate?: number;
+    maxptime?: number;
+    numChannels?: number;
+    rtcpFeedback?: RTCRtcpFeedback[];
+    parameters?: any;
+}
+
+interface RTCRtpContributingSource {
+    timestamp?: number;
+    csrc?: number;
+    audioLevel?: number;
+}
+
+interface RTCRtpEncodingParameters {
+    ssrc?: number;
+    codecPayloadType?: number;
+    fec?: RTCRtpFecParameters;
+    rtx?: RTCRtpRtxParameters;
+    priority?: number;
+    maxBitrate?: number;
+    minQuality?: number;
+    framerateBias?: number;
+    resolutionScale?: number;
+    framerateScale?: number;
+    active?: boolean;
+    encodingId?: string;
+    dependencyEncodingIds?: string[];
+    ssrcRange?: RTCSsrcRange;
+}
+
+interface RTCRtpFecParameters {
+    ssrc?: number;
+    mechanism?: string;
+}
+
+interface RTCRtpHeaderExtension {
+    kind?: string;
+    uri?: string;
+    preferredId?: number;
+    preferredEncrypt?: boolean;
+}
+
+interface RTCRtpHeaderExtensionParameters {
+    uri?: string;
+    id?: number;
+    encrypt?: boolean;
+}
+
+interface RTCRtpParameters {
+    muxId?: string;
+    codecs?: RTCRtpCodecParameters[];
+    headerExtensions?: RTCRtpHeaderExtensionParameters[];
+    encodings?: RTCRtpEncodingParameters[];
+    rtcp?: RTCRtcpParameters;
+}
+
+interface RTCRtpRtxParameters {
+    ssrc?: number;
+}
+
+interface RTCRtpUnhandled {
+    ssrc?: number;
+    payloadType?: number;
+    muxId?: string;
+}
+
+interface RTCSrtpKeyParam {
+    keyMethod?: string;
+    keySalt?: string;
+    lifetime?: string;
+    mkiValue?: number;
+    mkiLength?: number;
+}
+
+interface RTCSrtpSdesParameters {
+    tag?: number;
+    cryptoSuite?: string;
+    keyParams?: RTCSrtpKeyParam[];
+    sessionParams?: string[];
+}
+
+interface RTCSsrcRange {
+    min?: number;
+    max?: number;
+}
+
+interface RTCStats {
+    timestamp?: number;
+    type?: string;
+    id?: string;
+    msType?: string;
+}
+
+interface RTCStatsReport {
+}
+
+interface RTCTransportStats extends RTCStats {
+    bytesSent?: number;
+    bytesReceived?: number;
+    rtcpTransportStatsId?: string;
+    activeConnection?: boolean;
+    selectedCandidatePairId?: string;
+    localCertificateId?: string;
+    remoteCertificateId?: string;
 }
 
 interface StoreExceptionsInformation extends ExceptionInformation {
@@ -5532,6 +6592,7 @@ interface UIEventInit extends EventInit {
 }
 
 interface WebGLContextAttributes {
+    failIfMajorPerformanceCaveat?: boolean;
     alpha?: boolean;
     depth?: boolean;
     stencil?: boolean;
@@ -5559,18 +6620,18 @@ interface ANGLE_instanced_arrays {
     drawArraysInstancedANGLE(mode: number, first: number, count: number, primcount: number): void;
     drawElementsInstancedANGLE(mode: number, count: number, type: number, offset: number, primcount: number): void;
     vertexAttribDivisorANGLE(index: number, divisor: number): void;
-    VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE: number;
+    readonly VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE: number;
 }
 
 declare var ANGLE_instanced_arrays: {
     prototype: ANGLE_instanced_arrays;
     new(): ANGLE_instanced_arrays;
-    VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE: number;
+    readonly VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE: number;
 }
 
 interface AnalyserNode extends AudioNode {
     fftSize: number;
-    frequencyBinCount: number;
+    readonly frequencyBinCount: number;
     maxDecibels: number;
     minDecibels: number;
     smoothingTimeConstant: number;
@@ -5586,8 +6647,8 @@ declare var AnalyserNode: {
 }
 
 interface AnimationEvent extends Event {
-    animationName: string;
-    elapsedTime: number;
+    readonly animationName: string;
+    readonly elapsedTime: number;
     initAnimationEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, animationNameArg: string, elapsedTimeArg: number): void;
 }
 
@@ -5597,49 +6658,49 @@ declare var AnimationEvent: {
 }
 
 interface ApplicationCache extends EventTarget {
-    oncached: (ev: Event) => any;
-    onchecking: (ev: Event) => any;
-    ondownloading: (ev: Event) => any;
-    onerror: (ev: Event) => any;
-    onnoupdate: (ev: Event) => any;
-    onobsolete: (ev: Event) => any;
-    onprogress: (ev: ProgressEvent) => any;
-    onupdateready: (ev: Event) => any;
-    status: number;
+    oncached: (this: this, ev: Event) => any;
+    onchecking: (this: this, ev: Event) => any;
+    ondownloading: (this: this, ev: Event) => any;
+    onerror: (this: this, ev: ErrorEvent) => any;
+    onnoupdate: (this: this, ev: Event) => any;
+    onobsolete: (this: this, ev: Event) => any;
+    onprogress: (this: this, ev: ProgressEvent) => any;
+    onupdateready: (this: this, ev: Event) => any;
+    readonly status: number;
     abort(): void;
     swapCache(): void;
     update(): void;
-    CHECKING: number;
-    DOWNLOADING: number;
-    IDLE: number;
-    OBSOLETE: number;
-    UNCACHED: number;
-    UPDATEREADY: number;
-    addEventListener(type: "cached", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "checking", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "downloading", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "noupdate", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "obsolete", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "progress", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "updateready", listener: (ev: Event) => any, useCapture?: boolean): void;
+    readonly CHECKING: number;
+    readonly DOWNLOADING: number;
+    readonly IDLE: number;
+    readonly OBSOLETE: number;
+    readonly UNCACHED: number;
+    readonly UPDATEREADY: number;
+    addEventListener(type: "cached", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "checking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "downloading", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "noupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "obsolete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "updateready", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var ApplicationCache: {
     prototype: ApplicationCache;
     new(): ApplicationCache;
-    CHECKING: number;
-    DOWNLOADING: number;
-    IDLE: number;
-    OBSOLETE: number;
-    UNCACHED: number;
-    UPDATEREADY: number;
+    readonly CHECKING: number;
+    readonly DOWNLOADING: number;
+    readonly IDLE: number;
+    readonly OBSOLETE: number;
+    readonly UNCACHED: number;
+    readonly UPDATEREADY: number;
 }
 
 interface AriaRequestEvent extends Event {
-    attributeName: string;
-    attributeValue: string;
+    readonly attributeName: string;
+    attributeValue: string | null;
 }
 
 declare var AriaRequestEvent: {
@@ -5648,9 +6709,10 @@ declare var AriaRequestEvent: {
 }
 
 interface Attr extends Node {
-    name: string;
-    ownerElement: Element;
-    specified: boolean;
+    readonly name: string;
+    readonly ownerElement: Element;
+    readonly prefix: string | null;
+    readonly specified: boolean;
     value: string;
 }
 
@@ -5660,10 +6722,12 @@ declare var Attr: {
 }
 
 interface AudioBuffer {
-    duration: number;
-    length: number;
-    numberOfChannels: number;
-    sampleRate: number;
+    readonly duration: number;
+    readonly length: number;
+    readonly numberOfChannels: number;
+    readonly sampleRate: number;
+    copyFromChannel(destination: Float32Array, channelNumber: number, startInChannel?: number): void;
+    copyToChannel(source: Float32Array, channelNumber: number, startInChannel?: number): void;
     getChannelData(channel: number): Float32Array;
 }
 
@@ -5673,15 +6737,16 @@ declare var AudioBuffer: {
 }
 
 interface AudioBufferSourceNode extends AudioNode {
-    buffer: AudioBuffer;
+    buffer: AudioBuffer | null;
+    readonly detune: AudioParam;
     loop: boolean;
     loopEnd: number;
     loopStart: number;
-    onended: (ev: Event) => any;
-    playbackRate: AudioParam;
+    onended: (this: this, ev: MediaStreamErrorEvent) => any;
+    readonly playbackRate: AudioParam;
     start(when?: number, offset?: number, duration?: number): void;
     stop(when?: number): void;
-    addEventListener(type: "ended", listener: (ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -5691,10 +6756,10 @@ declare var AudioBufferSourceNode: {
 }
 
 interface AudioContext extends EventTarget {
-    currentTime: number;
-    destination: AudioDestinationNode;
-    listener: AudioListener;
-    sampleRate: number;
+    readonly currentTime: number;
+    readonly destination: AudioDestinationNode;
+    readonly listener: AudioListener;
+    readonly sampleRate: number;
     state: string;
     createAnalyser(): AnalyserNode;
     createBiquadFilter(): BiquadFilterNode;
@@ -5707,13 +6772,14 @@ interface AudioContext extends EventTarget {
     createDynamicsCompressor(): DynamicsCompressorNode;
     createGain(): GainNode;
     createMediaElementSource(mediaElement: HTMLMediaElement): MediaElementAudioSourceNode;
+    createMediaStreamSource(mediaStream: MediaStream): MediaStreamAudioSourceNode;
     createOscillator(): OscillatorNode;
     createPanner(): PannerNode;
-    createPeriodicWave(real: Float32Array, imag: Float32Array): PeriodicWave;
+    createPeriodicWave(real: Float32Array, imag: Float32Array, constraints?: PeriodicWaveConstraints): PeriodicWave;
     createScriptProcessor(bufferSize?: number, numberOfInputChannels?: number, numberOfOutputChannels?: number): ScriptProcessorNode;
     createStereoPanner(): StereoPannerNode;
     createWaveShaper(): WaveShaperNode;
-    decodeAudioData(audioData: ArrayBuffer, successCallback: DecodeSuccessCallback, errorCallback?: DecodeErrorCallback): void;
+    decodeAudioData(audioData: ArrayBuffer, successCallback?: DecodeSuccessCallback, errorCallback?: DecodeErrorCallback): PromiseLike<AudioBuffer>;
 }
 
 declare var AudioContext: {
@@ -5722,7 +6788,7 @@ declare var AudioContext: {
 }
 
 interface AudioDestinationNode extends AudioNode {
-    maxChannelCount: number;
+    readonly maxChannelCount: number;
 }
 
 declare var AudioDestinationNode: {
@@ -5747,11 +6813,13 @@ interface AudioNode extends EventTarget {
     channelCount: number;
     channelCountMode: string;
     channelInterpretation: string;
-    context: AudioContext;
-    numberOfInputs: number;
-    numberOfOutputs: number;
+    readonly context: AudioContext;
+    readonly numberOfInputs: number;
+    readonly numberOfOutputs: number;
     connect(destination: AudioNode, output?: number, input?: number): void;
     disconnect(output?: number): void;
+    disconnect(destination: AudioNode, output?: number, input?: number): void;
+    disconnect(destination: AudioParam, output?: number): void;
 }
 
 declare var AudioNode: {
@@ -5760,7 +6828,7 @@ declare var AudioNode: {
 }
 
 interface AudioParam {
-    defaultValue: number;
+    readonly defaultValue: number;
     value: number;
     cancelScheduledValues(startTime: number): void;
     exponentialRampToValueAtTime(value: number, endTime: number): void;
@@ -5776,9 +6844,9 @@ declare var AudioParam: {
 }
 
 interface AudioProcessingEvent extends Event {
-    inputBuffer: AudioBuffer;
-    outputBuffer: AudioBuffer;
-    playbackTime: number;
+    readonly inputBuffer: AudioBuffer;
+    readonly outputBuffer: AudioBuffer;
+    readonly playbackTime: number;
 }
 
 declare var AudioProcessingEvent: {
@@ -5788,11 +6856,11 @@ declare var AudioProcessingEvent: {
 
 interface AudioTrack {
     enabled: boolean;
-    id: string;
+    readonly id: string;
     kind: string;
-    label: string;
+    readonly label: string;
     language: string;
-    sourceBuffer: SourceBuffer;
+    readonly sourceBuffer: SourceBuffer;
 }
 
 declare var AudioTrack: {
@@ -5801,15 +6869,15 @@ declare var AudioTrack: {
 }
 
 interface AudioTrackList extends EventTarget {
-    length: number;
-    onaddtrack: (ev: TrackEvent) => any;
-    onchange: (ev: Event) => any;
-    onremovetrack: (ev: TrackEvent) => any;
-    getTrackById(id: string): AudioTrack;
+    readonly length: number;
+    onaddtrack: (this: this, ev: TrackEvent) => any;
+    onchange: (this: this, ev: Event) => any;
+    onremovetrack: (this: this, ev: TrackEvent) => any;
+    getTrackById(id: string): AudioTrack | null;
     item(index: number): AudioTrack;
-    addEventListener(type: "addtrack", listener: (ev: TrackEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "change", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "removetrack", listener: (ev: TrackEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "addtrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "removetrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
     [index: number]: AudioTrack;
 }
@@ -5820,7 +6888,7 @@ declare var AudioTrackList: {
 }
 
 interface BarProp {
-    visible: boolean;
+    readonly visible: boolean;
 }
 
 declare var BarProp: {
@@ -5838,10 +6906,10 @@ declare var BeforeUnloadEvent: {
 }
 
 interface BiquadFilterNode extends AudioNode {
-    Q: AudioParam;
-    detune: AudioParam;
-    frequency: AudioParam;
-    gain: AudioParam;
+    readonly Q: AudioParam;
+    readonly detune: AudioParam;
+    readonly frequency: AudioParam;
+    readonly gain: AudioParam;
     type: string;
     getFrequencyResponse(frequencyHz: Float32Array, magResponse: Float32Array, phaseResponse: Float32Array): void;
 }
@@ -5852,8 +6920,8 @@ declare var BiquadFilterNode: {
 }
 
 interface Blob {
-    size: number;
-    type: string;
+    readonly size: number;
+    readonly type: string;
     msClose(): void;
     msDetachStream(): any;
     slice(start?: number, end?: number, contentType?: string): Blob;
@@ -5887,7 +6955,7 @@ declare var CSSConditionRule: {
 }
 
 interface CSSFontFaceRule extends CSSRule {
-    style: CSSStyleDeclaration;
+    readonly style: CSSStyleDeclaration;
 }
 
 declare var CSSFontFaceRule: {
@@ -5896,9 +6964,9 @@ declare var CSSFontFaceRule: {
 }
 
 interface CSSGroupingRule extends CSSRule {
-    cssRules: CSSRuleList;
-    deleteRule(index?: number): void;
-    insertRule(rule: string, index?: number): number;
+    readonly cssRules: CSSRuleList;
+    deleteRule(index: number): void;
+    insertRule(rule: string, index: number): number;
 }
 
 declare var CSSGroupingRule: {
@@ -5907,9 +6975,9 @@ declare var CSSGroupingRule: {
 }
 
 interface CSSImportRule extends CSSRule {
-    href: string;
-    media: MediaList;
-    styleSheet: CSSStyleSheet;
+    readonly href: string;
+    readonly media: MediaList;
+    readonly styleSheet: CSSStyleSheet;
 }
 
 declare var CSSImportRule: {
@@ -5919,7 +6987,7 @@ declare var CSSImportRule: {
 
 interface CSSKeyframeRule extends CSSRule {
     keyText: string;
-    style: CSSStyleDeclaration;
+    readonly style: CSSStyleDeclaration;
 }
 
 declare var CSSKeyframeRule: {
@@ -5928,7 +6996,7 @@ declare var CSSKeyframeRule: {
 }
 
 interface CSSKeyframesRule extends CSSRule {
-    cssRules: CSSRuleList;
+    readonly cssRules: CSSRuleList;
     name: string;
     appendRule(rule: string): void;
     deleteRule(rule: string): void;
@@ -5941,7 +7009,7 @@ declare var CSSKeyframesRule: {
 }
 
 interface CSSMediaRule extends CSSConditionRule {
-    media: MediaList;
+    readonly media: MediaList;
 }
 
 declare var CSSMediaRule: {
@@ -5950,8 +7018,8 @@ declare var CSSMediaRule: {
 }
 
 interface CSSNamespaceRule extends CSSRule {
-    namespaceURI: string;
-    prefix: string;
+    readonly namespaceURI: string;
+    readonly prefix: string;
 }
 
 declare var CSSNamespaceRule: {
@@ -5960,10 +7028,10 @@ declare var CSSNamespaceRule: {
 }
 
 interface CSSPageRule extends CSSRule {
-    pseudoClass: string;
-    selector: string;
+    readonly pseudoClass: string;
+    readonly selector: string;
     selectorText: string;
-    style: CSSStyleDeclaration;
+    readonly style: CSSStyleDeclaration;
 }
 
 declare var CSSPageRule: {
@@ -5973,42 +7041,42 @@ declare var CSSPageRule: {
 
 interface CSSRule {
     cssText: string;
-    parentRule: CSSRule;
-    parentStyleSheet: CSSStyleSheet;
-    type: number;
-    CHARSET_RULE: number;
-    FONT_FACE_RULE: number;
-    IMPORT_RULE: number;
-    KEYFRAMES_RULE: number;
-    KEYFRAME_RULE: number;
-    MEDIA_RULE: number;
-    NAMESPACE_RULE: number;
-    PAGE_RULE: number;
-    STYLE_RULE: number;
-    SUPPORTS_RULE: number;
-    UNKNOWN_RULE: number;
-    VIEWPORT_RULE: number;
+    readonly parentRule: CSSRule;
+    readonly parentStyleSheet: CSSStyleSheet;
+    readonly type: number;
+    readonly CHARSET_RULE: number;
+    readonly FONT_FACE_RULE: number;
+    readonly IMPORT_RULE: number;
+    readonly KEYFRAMES_RULE: number;
+    readonly KEYFRAME_RULE: number;
+    readonly MEDIA_RULE: number;
+    readonly NAMESPACE_RULE: number;
+    readonly PAGE_RULE: number;
+    readonly STYLE_RULE: number;
+    readonly SUPPORTS_RULE: number;
+    readonly UNKNOWN_RULE: number;
+    readonly VIEWPORT_RULE: number;
 }
 
 declare var CSSRule: {
     prototype: CSSRule;
     new(): CSSRule;
-    CHARSET_RULE: number;
-    FONT_FACE_RULE: number;
-    IMPORT_RULE: number;
-    KEYFRAMES_RULE: number;
-    KEYFRAME_RULE: number;
-    MEDIA_RULE: number;
-    NAMESPACE_RULE: number;
-    PAGE_RULE: number;
-    STYLE_RULE: number;
-    SUPPORTS_RULE: number;
-    UNKNOWN_RULE: number;
-    VIEWPORT_RULE: number;
+    readonly CHARSET_RULE: number;
+    readonly FONT_FACE_RULE: number;
+    readonly IMPORT_RULE: number;
+    readonly KEYFRAMES_RULE: number;
+    readonly KEYFRAME_RULE: number;
+    readonly MEDIA_RULE: number;
+    readonly NAMESPACE_RULE: number;
+    readonly PAGE_RULE: number;
+    readonly STYLE_RULE: number;
+    readonly SUPPORTS_RULE: number;
+    readonly UNKNOWN_RULE: number;
+    readonly VIEWPORT_RULE: number;
 }
 
 interface CSSRuleList {
-    length: number;
+    readonly length: number;
     item(index: number): CSSRule;
     [index: number]: CSSRule;
 }
@@ -6019,356 +7087,343 @@ declare var CSSRuleList: {
 }
 
 interface CSSStyleDeclaration {
-    alignContent: string;
-    alignItems: string;
-    alignSelf: string;
-    alignmentBaseline: string;
-    animation: string;
-    animationDelay: string;
-    animationDirection: string;
-    animationDuration: string;
-    animationFillMode: string;
-    animationIterationCount: string;
-    animationName: string;
-    animationPlayState: string;
-    animationTimingFunction: string;
-    backfaceVisibility: string;
-    background: string;
-    backgroundAttachment: string;
-    backgroundClip: string;
-    backgroundColor: string;
-    backgroundImage: string;
-    backgroundOrigin: string;
-    backgroundPosition: string;
-    backgroundPositionX: string;
-    backgroundPositionY: string;
-    backgroundRepeat: string;
-    backgroundSize: string;
-    baselineShift: string;
-    border: string;
-    borderBottom: string;
-    borderBottomColor: string;
-    borderBottomLeftRadius: string;
-    borderBottomRightRadius: string;
-    borderBottomStyle: string;
-    borderBottomWidth: string;
-    borderCollapse: string;
-    borderColor: string;
-    borderImage: string;
-    borderImageOutset: string;
-    borderImageRepeat: string;
-    borderImageSlice: string;
-    borderImageSource: string;
-    borderImageWidth: string;
-    borderLeft: string;
-    borderLeftColor: string;
-    borderLeftStyle: string;
-    borderLeftWidth: string;
-    borderRadius: string;
-    borderRight: string;
-    borderRightColor: string;
-    borderRightStyle: string;
-    borderRightWidth: string;
-    borderSpacing: string;
-    borderStyle: string;
-    borderTop: string;
-    borderTopColor: string;
-    borderTopLeftRadius: string;
-    borderTopRightRadius: string;
-    borderTopStyle: string;
-    borderTopWidth: string;
-    borderWidth: string;
-    bottom: string;
-    boxShadow: string;
-    boxSizing: string;
-    breakAfter: string;
-    breakBefore: string;
-    breakInside: string;
-    captionSide: string;
-    clear: string;
-    clip: string;
-    clipPath: string;
-    clipRule: string;
-    color: string;
-    colorInterpolationFilters: string;
+    alignContent: string | null;
+    alignItems: string | null;
+    alignSelf: string | null;
+    alignmentBaseline: string | null;
+    animation: string | null;
+    animationDelay: string | null;
+    animationDirection: string | null;
+    animationDuration: string | null;
+    animationFillMode: string | null;
+    animationIterationCount: string | null;
+    animationName: string | null;
+    animationPlayState: string | null;
+    animationTimingFunction: string | null;
+    backfaceVisibility: string | null;
+    background: string | null;
+    backgroundAttachment: string | null;
+    backgroundClip: string | null;
+    backgroundColor: string | null;
+    backgroundImage: string | null;
+    backgroundOrigin: string | null;
+    backgroundPosition: string | null;
+    backgroundPositionX: string | null;
+    backgroundPositionY: string | null;
+    backgroundRepeat: string | null;
+    backgroundSize: string | null;
+    baselineShift: string | null;
+    border: string | null;
+    borderBottom: string | null;
+    borderBottomColor: string | null;
+    borderBottomLeftRadius: string | null;
+    borderBottomRightRadius: string | null;
+    borderBottomStyle: string | null;
+    borderBottomWidth: string | null;
+    borderCollapse: string | null;
+    borderColor: string | null;
+    borderImage: string | null;
+    borderImageOutset: string | null;
+    borderImageRepeat: string | null;
+    borderImageSlice: string | null;
+    borderImageSource: string | null;
+    borderImageWidth: string | null;
+    borderLeft: string | null;
+    borderLeftColor: string | null;
+    borderLeftStyle: string | null;
+    borderLeftWidth: string | null;
+    borderRadius: string | null;
+    borderRight: string | null;
+    borderRightColor: string | null;
+    borderRightStyle: string | null;
+    borderRightWidth: string | null;
+    borderSpacing: string | null;
+    borderStyle: string | null;
+    borderTop: string | null;
+    borderTopColor: string | null;
+    borderTopLeftRadius: string | null;
+    borderTopRightRadius: string | null;
+    borderTopStyle: string | null;
+    borderTopWidth: string | null;
+    borderWidth: string | null;
+    bottom: string | null;
+    boxShadow: string | null;
+    boxSizing: string | null;
+    breakAfter: string | null;
+    breakBefore: string | null;
+    breakInside: string | null;
+    captionSide: string | null;
+    clear: string | null;
+    clip: string | null;
+    clipPath: string | null;
+    clipRule: string | null;
+    color: string | null;
+    colorInterpolationFilters: string | null;
     columnCount: any;
-    columnFill: string;
+    columnFill: string | null;
     columnGap: any;
-    columnRule: string;
+    columnRule: string | null;
     columnRuleColor: any;
-    columnRuleStyle: string;
+    columnRuleStyle: string | null;
     columnRuleWidth: any;
-    columnSpan: string;
+    columnSpan: string | null;
     columnWidth: any;
-    columns: string;
-    content: string;
-    counterIncrement: string;
-    counterReset: string;
-    cssFloat: string;
+    columns: string | null;
+    content: string | null;
+    counterIncrement: string | null;
+    counterReset: string | null;
+    cssFloat: string | null;
     cssText: string;
-    cursor: string;
-    direction: string;
-    display: string;
-    dominantBaseline: string;
-    emptyCells: string;
-    enableBackground: string;
-    fill: string;
-    fillOpacity: string;
-    fillRule: string;
-    filter: string;
-    flex: string;
-    flexBasis: string;
-    flexDirection: string;
-    flexFlow: string;
-    flexGrow: string;
-    flexShrink: string;
-    flexWrap: string;
-    floodColor: string;
-    floodOpacity: string;
-    font: string;
-    fontFamily: string;
-    fontFeatureSettings: string;
-    fontSize: string;
-    fontSizeAdjust: string;
-    fontStretch: string;
-    fontStyle: string;
-    fontVariant: string;
-    fontWeight: string;
-    glyphOrientationHorizontal: string;
-    glyphOrientationVertical: string;
-    height: string;
-    imeMode: string;
-    justifyContent: string;
-    kerning: string;
-    left: string;
-    length: number;
-    letterSpacing: string;
-    lightingColor: string;
-    lineHeight: string;
-    listStyle: string;
-    listStyleImage: string;
-    listStylePosition: string;
-    listStyleType: string;
-    margin: string;
-    marginBottom: string;
-    marginLeft: string;
-    marginRight: string;
-    marginTop: string;
-    marker: string;
-    markerEnd: string;
-    markerMid: string;
-    markerStart: string;
-    mask: string;
-    maxHeight: string;
-    maxWidth: string;
-    minHeight: string;
-    minWidth: string;
-    msContentZoomChaining: string;
-    msContentZoomLimit: string;
+    cursor: string | null;
+    direction: string | null;
+    display: string | null;
+    dominantBaseline: string | null;
+    emptyCells: string | null;
+    enableBackground: string | null;
+    fill: string | null;
+    fillOpacity: string | null;
+    fillRule: string | null;
+    filter: string | null;
+    flex: string | null;
+    flexBasis: string | null;
+    flexDirection: string | null;
+    flexFlow: string | null;
+    flexGrow: string | null;
+    flexShrink: string | null;
+    flexWrap: string | null;
+    floodColor: string | null;
+    floodOpacity: string | null;
+    font: string | null;
+    fontFamily: string | null;
+    fontFeatureSettings: string | null;
+    fontSize: string | null;
+    fontSizeAdjust: string | null;
+    fontStretch: string | null;
+    fontStyle: string | null;
+    fontVariant: string | null;
+    fontWeight: string | null;
+    glyphOrientationHorizontal: string | null;
+    glyphOrientationVertical: string | null;
+    height: string | null;
+    imeMode: string | null;
+    justifyContent: string | null;
+    kerning: string | null;
+    left: string | null;
+    readonly length: number;
+    letterSpacing: string | null;
+    lightingColor: string | null;
+    lineHeight: string | null;
+    listStyle: string | null;
+    listStyleImage: string | null;
+    listStylePosition: string | null;
+    listStyleType: string | null;
+    margin: string | null;
+    marginBottom: string | null;
+    marginLeft: string | null;
+    marginRight: string | null;
+    marginTop: string | null;
+    marker: string | null;
+    markerEnd: string | null;
+    markerMid: string | null;
+    markerStart: string | null;
+    mask: string | null;
+    maxHeight: string | null;
+    maxWidth: string | null;
+    minHeight: string | null;
+    minWidth: string | null;
+    msContentZoomChaining: string | null;
+    msContentZoomLimit: string | null;
     msContentZoomLimitMax: any;
     msContentZoomLimitMin: any;
-    msContentZoomSnap: string;
-    msContentZoomSnapPoints: string;
-    msContentZoomSnapType: string;
-    msContentZooming: string;
-    msFlowFrom: string;
-    msFlowInto: string;
-    msFontFeatureSettings: string;
+    msContentZoomSnap: string | null;
+    msContentZoomSnapPoints: string | null;
+    msContentZoomSnapType: string | null;
+    msContentZooming: string | null;
+    msFlowFrom: string | null;
+    msFlowInto: string | null;
+    msFontFeatureSettings: string | null;
     msGridColumn: any;
-    msGridColumnAlign: string;
+    msGridColumnAlign: string | null;
     msGridColumnSpan: any;
-    msGridColumns: string;
+    msGridColumns: string | null;
     msGridRow: any;
-    msGridRowAlign: string;
+    msGridRowAlign: string | null;
     msGridRowSpan: any;
-    msGridRows: string;
-    msHighContrastAdjust: string;
-    msHyphenateLimitChars: string;
+    msGridRows: string | null;
+    msHighContrastAdjust: string | null;
+    msHyphenateLimitChars: string | null;
     msHyphenateLimitLines: any;
     msHyphenateLimitZone: any;
-    msHyphens: string;
-    msImeAlign: string;
-    msOverflowStyle: string;
-    msScrollChaining: string;
-    msScrollLimit: string;
+    msHyphens: string | null;
+    msImeAlign: string | null;
+    msOverflowStyle: string | null;
+    msScrollChaining: string | null;
+    msScrollLimit: string | null;
     msScrollLimitXMax: any;
     msScrollLimitXMin: any;
     msScrollLimitYMax: any;
     msScrollLimitYMin: any;
-    msScrollRails: string;
-    msScrollSnapPointsX: string;
-    msScrollSnapPointsY: string;
-    msScrollSnapType: string;
-    msScrollSnapX: string;
-    msScrollSnapY: string;
-    msScrollTranslation: string;
-    msTextCombineHorizontal: string;
+    msScrollRails: string | null;
+    msScrollSnapPointsX: string | null;
+    msScrollSnapPointsY: string | null;
+    msScrollSnapType: string | null;
+    msScrollSnapX: string | null;
+    msScrollSnapY: string | null;
+    msScrollTranslation: string | null;
+    msTextCombineHorizontal: string | null;
     msTextSizeAdjust: any;
-    msTouchAction: string;
-    msTouchSelect: string;
-    msUserSelect: string;
+    msTouchAction: string | null;
+    msTouchSelect: string | null;
+    msUserSelect: string | null;
     msWrapFlow: string;
     msWrapMargin: any;
     msWrapThrough: string;
-    opacity: string;
-    order: string;
-    orphans: string;
-    outline: string;
-    outlineColor: string;
-    outlineStyle: string;
-    outlineWidth: string;
-    overflow: string;
-    overflowX: string;
-    overflowY: string;
-    padding: string;
-    paddingBottom: string;
-    paddingLeft: string;
-    paddingRight: string;
-    paddingTop: string;
-    pageBreakAfter: string;
-    pageBreakBefore: string;
-    pageBreakInside: string;
-    parentRule: CSSRule;
-    perspective: string;
-    perspectiveOrigin: string;
-    pointerEvents: string;
-    position: string;
-    quotes: string;
-    right: string;
-    rubyAlign: string;
-    rubyOverhang: string;
-    rubyPosition: string;
-    stopColor: string;
-    stopOpacity: string;
-    stroke: string;
-    strokeDasharray: string;
-    strokeDashoffset: string;
-    strokeLinecap: string;
-    strokeLinejoin: string;
-    strokeMiterlimit: string;
-    strokeOpacity: string;
-    strokeWidth: string;
-    tableLayout: string;
-    textAlign: string;
-    textAlignLast: string;
-    textAnchor: string;
-    textDecoration: string;
-    textFillColor: string;
-    textIndent: string;
-    textJustify: string;
-    textKashida: string;
-    textKashidaSpace: string;
-    textOverflow: string;
-    textShadow: string;
-    textTransform: string;
-    textUnderlinePosition: string;
-    top: string;
-    touchAction: string;
-    transform: string;
-    transformOrigin: string;
-    transformStyle: string;
-    transition: string;
-    transitionDelay: string;
-    transitionDuration: string;
-    transitionProperty: string;
-    transitionTimingFunction: string;
-    unicodeBidi: string;
-    verticalAlign: string;
-    visibility: string;
-    webkitAlignContent: string;
-    webkitAlignItems: string;
-    webkitAlignSelf: string;
-    webkitAnimation: string;
-    webkitAnimationDelay: string;
-    webkitAnimationDirection: string;
-    webkitAnimationDuration: string;
-    webkitAnimationFillMode: string;
-    webkitAnimationIterationCount: string;
-    webkitAnimationName: string;
-    webkitAnimationPlayState: string;
-    webkitAnimationTimingFunction: string;
-    webkitAppearance: string;
-    webkitBackfaceVisibility: string;
-    webkitBackground: string;
-    webkitBackgroundAttachment: string;
-    webkitBackgroundClip: string;
-    webkitBackgroundColor: string;
-    webkitBackgroundImage: string;
-    webkitBackgroundOrigin: string;
-    webkitBackgroundPosition: string;
-    webkitBackgroundPositionX: string;
-    webkitBackgroundPositionY: string;
-    webkitBackgroundRepeat: string;
-    webkitBackgroundSize: string;
-    webkitBorderBottomLeftRadius: string;
-    webkitBorderBottomRightRadius: string;
-    webkitBorderImage: string;
-    webkitBorderImageOutset: string;
-    webkitBorderImageRepeat: string;
-    webkitBorderImageSlice: string;
-    webkitBorderImageSource: string;
-    webkitBorderImageWidth: string;
-    webkitBorderRadius: string;
-    webkitBorderTopLeftRadius: string;
-    webkitBorderTopRightRadius: string;
-    webkitBoxAlign: string;
-    webkitBoxDirection: string;
-    webkitBoxFlex: string;
-    webkitBoxOrdinalGroup: string;
-    webkitBoxOrient: string;
-    webkitBoxPack: string;
-    webkitBoxSizing: string;
-    webkitColumnBreakAfter: string;
-    webkitColumnBreakBefore: string;
-    webkitColumnBreakInside: string;
+    opacity: string | null;
+    order: string | null;
+    orphans: string | null;
+    outline: string | null;
+    outlineColor: string | null;
+    outlineStyle: string | null;
+    outlineWidth: string | null;
+    overflow: string | null;
+    overflowX: string | null;
+    overflowY: string | null;
+    padding: string | null;
+    paddingBottom: string | null;
+    paddingLeft: string | null;
+    paddingRight: string | null;
+    paddingTop: string | null;
+    pageBreakAfter: string | null;
+    pageBreakBefore: string | null;
+    pageBreakInside: string | null;
+    readonly parentRule: CSSRule;
+    perspective: string | null;
+    perspectiveOrigin: string | null;
+    pointerEvents: string | null;
+    position: string | null;
+    quotes: string | null;
+    right: string | null;
+    rubyAlign: string | null;
+    rubyOverhang: string | null;
+    rubyPosition: string | null;
+    stopColor: string | null;
+    stopOpacity: string | null;
+    stroke: string | null;
+    strokeDasharray: string | null;
+    strokeDashoffset: string | null;
+    strokeLinecap: string | null;
+    strokeLinejoin: string | null;
+    strokeMiterlimit: string | null;
+    strokeOpacity: string | null;
+    strokeWidth: string | null;
+    tableLayout: string | null;
+    textAlign: string | null;
+    textAlignLast: string | null;
+    textAnchor: string | null;
+    textDecoration: string | null;
+    textIndent: string | null;
+    textJustify: string | null;
+    textKashida: string | null;
+    textKashidaSpace: string | null;
+    textOverflow: string | null;
+    textShadow: string | null;
+    textTransform: string | null;
+    textUnderlinePosition: string | null;
+    top: string | null;
+    touchAction: string | null;
+    transform: string | null;
+    transformOrigin: string | null;
+    transformStyle: string | null;
+    transition: string | null;
+    transitionDelay: string | null;
+    transitionDuration: string | null;
+    transitionProperty: string | null;
+    transitionTimingFunction: string | null;
+    unicodeBidi: string | null;
+    verticalAlign: string | null;
+    visibility: string | null;
+    webkitAlignContent: string | null;
+    webkitAlignItems: string | null;
+    webkitAlignSelf: string | null;
+    webkitAnimation: string | null;
+    webkitAnimationDelay: string | null;
+    webkitAnimationDirection: string | null;
+    webkitAnimationDuration: string | null;
+    webkitAnimationFillMode: string | null;
+    webkitAnimationIterationCount: string | null;
+    webkitAnimationName: string | null;
+    webkitAnimationPlayState: string | null;
+    webkitAnimationTimingFunction: string | null;
+    webkitAppearance: string | null;
+    webkitBackfaceVisibility: string | null;
+    webkitBackgroundClip: string | null;
+    webkitBackgroundOrigin: string | null;
+    webkitBackgroundSize: string | null;
+    webkitBorderBottomLeftRadius: string | null;
+    webkitBorderBottomRightRadius: string | null;
+    webkitBorderImage: string | null;
+    webkitBorderRadius: string | null;
+    webkitBorderTopLeftRadius: string | null;
+    webkitBorderTopRightRadius: string | null;
+    webkitBoxAlign: string | null;
+    webkitBoxDirection: string | null;
+    webkitBoxFlex: string | null;
+    webkitBoxOrdinalGroup: string | null;
+    webkitBoxOrient: string | null;
+    webkitBoxPack: string | null;
+    webkitBoxSizing: string | null;
+    webkitColumnBreakAfter: string | null;
+    webkitColumnBreakBefore: string | null;
+    webkitColumnBreakInside: string | null;
     webkitColumnCount: any;
     webkitColumnGap: any;
-    webkitColumnRule: string;
+    webkitColumnRule: string | null;
     webkitColumnRuleColor: any;
-    webkitColumnRuleStyle: string;
+    webkitColumnRuleStyle: string | null;
     webkitColumnRuleWidth: any;
-    webkitColumnSpan: string;
+    webkitColumnSpan: string | null;
     webkitColumnWidth: any;
-    webkitColumns: string;
-    webkitFilter: string;
-    webkitFlex: string;
-    webkitFlexBasis: string;
-    webkitFlexDirection: string;
-    webkitFlexFlow: string;
-    webkitFlexGrow: string;
-    webkitFlexShrink: string;
-    webkitFlexWrap: string;
-    webkitJustifyContent: string;
-    webkitOrder: string;
-    webkitPerspective: string;
-    webkitPerspectiveOrigin: string;
-    webkitTapHighlightColor: string;
-    webkitTextFillColor: string;
+    webkitColumns: string | null;
+    webkitFilter: string | null;
+    webkitFlex: string | null;
+    webkitFlexBasis: string | null;
+    webkitFlexDirection: string | null;
+    webkitFlexFlow: string | null;
+    webkitFlexGrow: string | null;
+    webkitFlexShrink: string | null;
+    webkitFlexWrap: string | null;
+    webkitJustifyContent: string | null;
+    webkitOrder: string | null;
+    webkitPerspective: string | null;
+    webkitPerspectiveOrigin: string | null;
+    webkitTapHighlightColor: string | null;
+    webkitTextFillColor: string | null;
     webkitTextSizeAdjust: any;
-    webkitTransform: string;
-    webkitTransformOrigin: string;
-    webkitTransformStyle: string;
-    webkitTransition: string;
-    webkitTransitionDelay: string;
-    webkitTransitionDuration: string;
-    webkitTransitionProperty: string;
-    webkitTransitionTimingFunction: string;
-    webkitUserSelect: string;
-    webkitWritingMode: string;
-    whiteSpace: string;
-    widows: string;
-    width: string;
-    wordBreak: string;
-    wordSpacing: string;
-    wordWrap: string;
-    writingMode: string;
-    zIndex: string;
-    zoom: string;
+    webkitTransform: string | null;
+    webkitTransformOrigin: string | null;
+    webkitTransformStyle: string | null;
+    webkitTransition: string | null;
+    webkitTransitionDelay: string | null;
+    webkitTransitionDuration: string | null;
+    webkitTransitionProperty: string | null;
+    webkitTransitionTimingFunction: string | null;
+    webkitUserModify: string | null;
+    webkitUserSelect: string | null;
+    webkitWritingMode: string | null;
+    whiteSpace: string | null;
+    widows: string | null;
+    width: string | null;
+    wordBreak: string | null;
+    wordSpacing: string | null;
+    wordWrap: string | null;
+    writingMode: string | null;
+    zIndex: string | null;
+    zoom: string | null;
     getPropertyPriority(propertyName: string): string;
     getPropertyValue(propertyName: string): string;
     item(index: number): string;
     removeProperty(propertyName: string): string;
-    setProperty(propertyName: string, value: string, priority?: string): void;
+    setProperty(propertyName: string, value: string | null, priority?: string): void;
     [index: number]: string;
 }
 
@@ -6378,9 +7433,9 @@ declare var CSSStyleDeclaration: {
 }
 
 interface CSSStyleRule extends CSSRule {
-    readOnly: boolean;
+    readonly readOnly: boolean;
     selectorText: string;
-    style: CSSStyleDeclaration;
+    readonly style: CSSStyleDeclaration;
 }
 
 declare var CSSStyleRule: {
@@ -6389,18 +7444,18 @@ declare var CSSStyleRule: {
 }
 
 interface CSSStyleSheet extends StyleSheet {
-    cssRules: CSSRuleList;
+    readonly cssRules: CSSRuleList;
     cssText: string;
-    href: string;
-    id: string;
-    imports: StyleSheetList;
-    isAlternate: boolean;
-    isPrefAlternate: boolean;
-    ownerRule: CSSRule;
-    owningElement: Element;
-    pages: StyleSheetPageList;
-    readOnly: boolean;
-    rules: CSSRuleList;
+    readonly href: string;
+    readonly id: string;
+    readonly imports: StyleSheetList;
+    readonly isAlternate: boolean;
+    readonly isPrefAlternate: boolean;
+    readonly ownerRule: CSSRule;
+    readonly owningElement: Element;
+    readonly pages: StyleSheetPageList;
+    readonly readOnly: boolean;
+    readonly rules: CSSRuleList;
     addImport(bstrURL: string, lIndex?: number): number;
     addPageRule(bstrSelector: string, bstrStyle: string, lIndex?: number): number;
     addRule(bstrSelector: string, bstrStyle?: string, lIndex?: number): number;
@@ -6440,8 +7495,8 @@ declare var CanvasPattern: {
     new(): CanvasPattern;
 }
 
-interface CanvasRenderingContext2D {
-    canvas: HTMLCanvasElement;
+interface CanvasRenderingContext2D extends Object, CanvasPathMethods {
+    readonly canvas: HTMLCanvasElement;
     fillStyle: string | CanvasGradient | CanvasPattern;
     font: string;
     globalAlpha: number;
@@ -6460,13 +7515,12 @@ interface CanvasRenderingContext2D {
     strokeStyle: string | CanvasGradient | CanvasPattern;
     textAlign: string;
     textBaseline: string;
-    arc(x: number, y: number, radius: number, startAngle: number, endAngle: number, anticlockwise?: boolean): void;
-    arcTo(x1: number, y1: number, x2: number, y2: number, radius: number): void;
+    mozImageSmoothingEnabled: boolean;
+    webkitImageSmoothingEnabled: boolean;
+    oImageSmoothingEnabled: boolean;
     beginPath(): void;
-    bezierCurveTo(cp1x: number, cp1y: number, cp2x: number, cp2y: number, x: number, y: number): void;
     clearRect(x: number, y: number, w: number, h: number): void;
     clip(fillRule?: string): void;
-    closePath(): void;
     createImageData(imageDataOrSw: number | ImageData, sh?: number): ImageData;
     createLinearGradient(x0: number, y0: number, x1: number, y1: number): CanvasGradient;
     createPattern(image: HTMLImageElement | HTMLCanvasElement | HTMLVideoElement, repetition: string): CanvasPattern;
@@ -6478,12 +7532,8 @@ interface CanvasRenderingContext2D {
     getImageData(sx: number, sy: number, sw: number, sh: number): ImageData;
     getLineDash(): number[];
     isPointInPath(x: number, y: number, fillRule?: string): boolean;
-    lineTo(x: number, y: number): void;
     measureText(text: string): TextMetrics;
-    moveTo(x: number, y: number): void;
     putImageData(imagedata: ImageData, dx: number, dy: number, dirtyX?: number, dirtyY?: number, dirtyWidth?: number, dirtyHeight?: number): void;
-    quadraticCurveTo(cpx: number, cpy: number, x: number, y: number): void;
-    rect(x: number, y: number, w: number, h: number): void;
     restore(): void;
     rotate(angle: number): void;
     save(): void;
@@ -6520,7 +7570,7 @@ declare var ChannelSplitterNode: {
 
 interface CharacterData extends Node, ChildNode {
     data: string;
-    length: number;
+    readonly length: number;
     appendData(arg: string): void;
     deleteData(offset: number, count: number): void;
     insertData(offset: number, arg: string): void;
@@ -6536,11 +7586,11 @@ declare var CharacterData: {
 
 interface ClientRect {
     bottom: number;
-    height: number;
+    readonly height: number;
     left: number;
     right: number;
     top: number;
-    width: number;
+    readonly width: number;
 }
 
 declare var ClientRect: {
@@ -6549,7 +7599,7 @@ declare var ClientRect: {
 }
 
 interface ClientRectList {
-    length: number;
+    readonly length: number;
     item(index: number): ClientRect;
     [index: number]: ClientRect;
 }
@@ -6560,7 +7610,7 @@ declare var ClientRectList: {
 }
 
 interface ClipboardEvent extends Event {
-    clipboardData: DataTransfer;
+    readonly clipboardData: DataTransfer;
 }
 
 declare var ClipboardEvent: {
@@ -6569,9 +7619,9 @@ declare var ClipboardEvent: {
 }
 
 interface CloseEvent extends Event {
-    code: number;
-    reason: string;
-    wasClean: boolean;
+    readonly code: number;
+    readonly reason: string;
+    readonly wasClean: boolean;
     initCloseEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, wasCleanArg: boolean, codeArg: number, reasonArg: string): void;
 }
 
@@ -6581,8 +7631,8 @@ declare var CloseEvent: {
 }
 
 interface CommandEvent extends Event {
-    commandName: string;
-    detail: string;
+    readonly commandName: string;
+    readonly detail: string | null;
 }
 
 declare var CommandEvent: {
@@ -6600,8 +7650,8 @@ declare var Comment: {
 }
 
 interface CompositionEvent extends UIEvent {
-    data: string;
-    locale: string;
+    readonly data: string;
+    readonly locale: string;
     initCompositionEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, viewArg: Window, dataArg: string, locale: string): void;
 }
 
@@ -6618,6 +7668,7 @@ interface Console {
     dir(value?: any, ...optionalParams: any[]): void;
     dirxml(value: any): void;
     error(message?: any, ...optionalParams: any[]): void;
+    exception(message?: string, ...optionalParams: any[]): void;
     group(groupTitle?: string): void;
     groupCollapsed(groupTitle?: string): void;
     groupEnd(): void;
@@ -6627,9 +7678,10 @@ interface Console {
     profile(reportName?: string): void;
     profileEnd(): void;
     select(element: Element): void;
+    table(...data: any[]): void;
     time(timerName?: string): void;
     timeEnd(timerName?: string): void;
-    trace(): void;
+    trace(message?: any, ...optionalParams: any[]): void;
     warn(message?: any, ...optionalParams: any[]): void;
 }
 
@@ -6639,7 +7691,7 @@ declare var Console: {
 }
 
 interface ConvolverNode extends AudioNode {
-    buffer: AudioBuffer;
+    buffer: AudioBuffer | null;
     normalize: boolean;
 }
 
@@ -6649,13 +7701,13 @@ declare var ConvolverNode: {
 }
 
 interface Coordinates {
-    accuracy: number;
-    altitude: number;
-    altitudeAccuracy: number;
-    heading: number;
-    latitude: number;
-    longitude: number;
-    speed: number;
+    readonly accuracy: number;
+    readonly altitude: number | null;
+    readonly altitudeAccuracy: number | null;
+    readonly heading: number | null;
+    readonly latitude: number;
+    readonly longitude: number;
+    readonly speed: number | null;
 }
 
 declare var Coordinates: {
@@ -6664,7 +7716,7 @@ declare var Coordinates: {
 }
 
 interface Crypto extends Object, RandomSource {
-    subtle: SubtleCrypto;
+    readonly subtle: SubtleCrypto;
 }
 
 declare var Crypto: {
@@ -6673,10 +7725,10 @@ declare var Crypto: {
 }
 
 interface CryptoKey {
-    algorithm: KeyAlgorithm;
-    extractable: boolean;
-    type: string;
-    usages: string[];
+    readonly algorithm: KeyAlgorithm;
+    readonly extractable: boolean;
+    readonly type: string;
+    readonly usages: string[];
 }
 
 declare var CryptoKey: {
@@ -6695,7 +7747,7 @@ declare var CryptoKeyPair: {
 }
 
 interface CustomEvent extends Event {
-    detail: any;
+    readonly detail: any;
     initCustomEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, detailArg: any): void;
 }
 
@@ -6705,7 +7757,7 @@ declare var CustomEvent: {
 }
 
 interface DOMError {
-    name: string;
+    readonly name: string;
     toString(): string;
 }
 
@@ -6715,76 +7767,76 @@ declare var DOMError: {
 }
 
 interface DOMException {
-    code: number;
-    message: string;
-    name: string;
+    readonly code: number;
+    readonly message: string;
+    readonly name: string;
     toString(): string;
-    ABORT_ERR: number;
-    DATA_CLONE_ERR: number;
-    DOMSTRING_SIZE_ERR: number;
-    HIERARCHY_REQUEST_ERR: number;
-    INDEX_SIZE_ERR: number;
-    INUSE_ATTRIBUTE_ERR: number;
-    INVALID_ACCESS_ERR: number;
-    INVALID_CHARACTER_ERR: number;
-    INVALID_MODIFICATION_ERR: number;
-    INVALID_NODE_TYPE_ERR: number;
-    INVALID_STATE_ERR: number;
-    NAMESPACE_ERR: number;
-    NETWORK_ERR: number;
-    NOT_FOUND_ERR: number;
-    NOT_SUPPORTED_ERR: number;
-    NO_DATA_ALLOWED_ERR: number;
-    NO_MODIFICATION_ALLOWED_ERR: number;
-    PARSE_ERR: number;
-    QUOTA_EXCEEDED_ERR: number;
-    SECURITY_ERR: number;
-    SERIALIZE_ERR: number;
-    SYNTAX_ERR: number;
-    TIMEOUT_ERR: number;
-    TYPE_MISMATCH_ERR: number;
-    URL_MISMATCH_ERR: number;
-    VALIDATION_ERR: number;
-    WRONG_DOCUMENT_ERR: number;
+    readonly ABORT_ERR: number;
+    readonly DATA_CLONE_ERR: number;
+    readonly DOMSTRING_SIZE_ERR: number;
+    readonly HIERARCHY_REQUEST_ERR: number;
+    readonly INDEX_SIZE_ERR: number;
+    readonly INUSE_ATTRIBUTE_ERR: number;
+    readonly INVALID_ACCESS_ERR: number;
+    readonly INVALID_CHARACTER_ERR: number;
+    readonly INVALID_MODIFICATION_ERR: number;
+    readonly INVALID_NODE_TYPE_ERR: number;
+    readonly INVALID_STATE_ERR: number;
+    readonly NAMESPACE_ERR: number;
+    readonly NETWORK_ERR: number;
+    readonly NOT_FOUND_ERR: number;
+    readonly NOT_SUPPORTED_ERR: number;
+    readonly NO_DATA_ALLOWED_ERR: number;
+    readonly NO_MODIFICATION_ALLOWED_ERR: number;
+    readonly PARSE_ERR: number;
+    readonly QUOTA_EXCEEDED_ERR: number;
+    readonly SECURITY_ERR: number;
+    readonly SERIALIZE_ERR: number;
+    readonly SYNTAX_ERR: number;
+    readonly TIMEOUT_ERR: number;
+    readonly TYPE_MISMATCH_ERR: number;
+    readonly URL_MISMATCH_ERR: number;
+    readonly VALIDATION_ERR: number;
+    readonly WRONG_DOCUMENT_ERR: number;
 }
 
 declare var DOMException: {
     prototype: DOMException;
     new(): DOMException;
-    ABORT_ERR: number;
-    DATA_CLONE_ERR: number;
-    DOMSTRING_SIZE_ERR: number;
-    HIERARCHY_REQUEST_ERR: number;
-    INDEX_SIZE_ERR: number;
-    INUSE_ATTRIBUTE_ERR: number;
-    INVALID_ACCESS_ERR: number;
-    INVALID_CHARACTER_ERR: number;
-    INVALID_MODIFICATION_ERR: number;
-    INVALID_NODE_TYPE_ERR: number;
-    INVALID_STATE_ERR: number;
-    NAMESPACE_ERR: number;
-    NETWORK_ERR: number;
-    NOT_FOUND_ERR: number;
-    NOT_SUPPORTED_ERR: number;
-    NO_DATA_ALLOWED_ERR: number;
-    NO_MODIFICATION_ALLOWED_ERR: number;
-    PARSE_ERR: number;
-    QUOTA_EXCEEDED_ERR: number;
-    SECURITY_ERR: number;
-    SERIALIZE_ERR: number;
-    SYNTAX_ERR: number;
-    TIMEOUT_ERR: number;
-    TYPE_MISMATCH_ERR: number;
-    URL_MISMATCH_ERR: number;
-    VALIDATION_ERR: number;
-    WRONG_DOCUMENT_ERR: number;
+    readonly ABORT_ERR: number;
+    readonly DATA_CLONE_ERR: number;
+    readonly DOMSTRING_SIZE_ERR: number;
+    readonly HIERARCHY_REQUEST_ERR: number;
+    readonly INDEX_SIZE_ERR: number;
+    readonly INUSE_ATTRIBUTE_ERR: number;
+    readonly INVALID_ACCESS_ERR: number;
+    readonly INVALID_CHARACTER_ERR: number;
+    readonly INVALID_MODIFICATION_ERR: number;
+    readonly INVALID_NODE_TYPE_ERR: number;
+    readonly INVALID_STATE_ERR: number;
+    readonly NAMESPACE_ERR: number;
+    readonly NETWORK_ERR: number;
+    readonly NOT_FOUND_ERR: number;
+    readonly NOT_SUPPORTED_ERR: number;
+    readonly NO_DATA_ALLOWED_ERR: number;
+    readonly NO_MODIFICATION_ALLOWED_ERR: number;
+    readonly PARSE_ERR: number;
+    readonly QUOTA_EXCEEDED_ERR: number;
+    readonly SECURITY_ERR: number;
+    readonly SERIALIZE_ERR: number;
+    readonly SYNTAX_ERR: number;
+    readonly TIMEOUT_ERR: number;
+    readonly TYPE_MISMATCH_ERR: number;
+    readonly URL_MISMATCH_ERR: number;
+    readonly VALIDATION_ERR: number;
+    readonly WRONG_DOCUMENT_ERR: number;
 }
 
 interface DOMImplementation {
-    createDocument(namespaceURI: string, qualifiedName: string, doctype: DocumentType): Document;
-    createDocumentType(qualifiedName: string, publicId: string, systemId: string): DocumentType;
+    createDocument(namespaceURI: string | null, qualifiedName: string | null, doctype: DocumentType): Document;
+    createDocumentType(qualifiedName: string, publicId: string | null, systemId: string | null): DocumentType;
     createHTMLDocument(title: string): Document;
-    hasFeature(feature: string, version: string): boolean;
+    hasFeature(feature: string | null, version: string | null): boolean;
 }
 
 declare var DOMImplementation: {
@@ -6811,9 +7863,9 @@ declare var DOMSettableTokenList: {
 }
 
 interface DOMStringList {
-    length: number;
+    readonly length: number;
     contains(str: string): boolean;
-    item(index: number): string;
+    item(index: number): string | null;
     [index: number]: string;
 }
 
@@ -6832,7 +7884,7 @@ declare var DOMStringMap: {
 }
 
 interface DOMTokenList {
-    length: number;
+    readonly length: number;
     add(...token: string[]): void;
     contains(token: string): boolean;
     item(index: number): string;
@@ -6859,9 +7911,9 @@ declare var DataCue: {
 interface DataTransfer {
     dropEffect: string;
     effectAllowed: string;
-    files: FileList;
-    items: DataTransferItemList;
-    types: DOMStringList;
+    readonly files: FileList;
+    readonly items: DataTransferItemList;
+    readonly types: DOMStringList;
     clearData(format?: string): boolean;
     getData(format: string): string;
     setData(format: string, data: string): boolean;
@@ -6873,10 +7925,10 @@ declare var DataTransfer: {
 }
 
 interface DataTransferItem {
-    kind: string;
-    type: string;
-    getAsFile(): File;
-    getAsString(_callback: FunctionStringCallback): void;
+    readonly kind: string;
+    readonly type: string;
+    getAsFile(): File | null;
+    getAsString(_callback: FunctionStringCallback | null): void;
 }
 
 declare var DataTransferItem: {
@@ -6885,12 +7937,12 @@ declare var DataTransferItem: {
 }
 
 interface DataTransferItemList {
-    length: number;
-    add(data: File): DataTransferItem;
+    readonly length: number;
+    add(data: File): DataTransferItem | null;
     clear(): void;
-    item(index: number): File;
+    item(index: number): DataTransferItem;
     remove(index: number): void;
-    [index: number]: File;
+    [index: number]: DataTransferItem;
 }
 
 declare var DataTransferItemList: {
@@ -6899,9 +7951,9 @@ declare var DataTransferItemList: {
 }
 
 interface DeferredPermissionRequest {
-    id: number;
-    type: string;
-    uri: string;
+    readonly id: number;
+    readonly type: string;
+    readonly uri: string;
     allow(): void;
     deny(): void;
 }
@@ -6912,7 +7964,7 @@ declare var DeferredPermissionRequest: {
 }
 
 interface DelayNode extends AudioNode {
-    delayTime: AudioParam;
+    readonly delayTime: AudioParam;
 }
 
 declare var DelayNode: {
@@ -6921,9 +7973,9 @@ declare var DelayNode: {
 }
 
 interface DeviceAcceleration {
-    x: number;
-    y: number;
-    z: number;
+    readonly x: number | null;
+    readonly y: number | null;
+    readonly z: number | null;
 }
 
 declare var DeviceAcceleration: {
@@ -6931,12 +7983,21 @@ declare var DeviceAcceleration: {
     new(): DeviceAcceleration;
 }
 
+interface DeviceLightEvent extends Event {
+    readonly value: number;
+}
+
+declare var DeviceLightEvent: {
+    prototype: DeviceLightEvent;
+    new(type: string, eventInitDict?: DeviceLightEventInit): DeviceLightEvent;
+}
+
 interface DeviceMotionEvent extends Event {
-    acceleration: DeviceAcceleration;
-    accelerationIncludingGravity: DeviceAcceleration;
-    interval: number;
-    rotationRate: DeviceRotationRate;
-    initDeviceMotionEvent(type: string, bubbles: boolean, cancelable: boolean, acceleration: DeviceAccelerationDict, accelerationIncludingGravity: DeviceAccelerationDict, rotationRate: DeviceRotationRateDict, interval: number): void;
+    readonly acceleration: DeviceAcceleration | null;
+    readonly accelerationIncludingGravity: DeviceAcceleration | null;
+    readonly interval: number | null;
+    readonly rotationRate: DeviceRotationRate | null;
+    initDeviceMotionEvent(type: string, bubbles: boolean, cancelable: boolean, acceleration: DeviceAccelerationDict | null, accelerationIncludingGravity: DeviceAccelerationDict | null, rotationRate: DeviceRotationRateDict | null, interval: number | null): void;
 }
 
 declare var DeviceMotionEvent: {
@@ -6945,11 +8006,11 @@ declare var DeviceMotionEvent: {
 }
 
 interface DeviceOrientationEvent extends Event {
-    absolute: boolean;
-    alpha: number;
-    beta: number;
-    gamma: number;
-    initDeviceOrientationEvent(type: string, bubbles: boolean, cancelable: boolean, alpha: number, beta: number, gamma: number, absolute: boolean): void;
+    readonly absolute: boolean;
+    readonly alpha: number | null;
+    readonly beta: number | null;
+    readonly gamma: number | null;
+    initDeviceOrientationEvent(type: string, bubbles: boolean, cancelable: boolean, alpha: number | null, beta: number | null, gamma: number | null, absolute: boolean): void;
 }
 
 declare var DeviceOrientationEvent: {
@@ -6958,9 +8019,9 @@ declare var DeviceOrientationEvent: {
 }
 
 interface DeviceRotationRate {
-    alpha: number;
-    beta: number;
-    gamma: number;
+    readonly alpha: number | null;
+    readonly beta: number | null;
+    readonly gamma: number | null;
 }
 
 declare var DeviceRotationRate: {
@@ -6968,19 +8029,19 @@ declare var DeviceRotationRate: {
     new(): DeviceRotationRate;
 }
 
-interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEvent {
+interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEvent, ParentNode {
     /**
       * Sets or gets the URL for the current document. 
       */
-    URL: string;
+    readonly URL: string;
     /**
       * Gets the URL for the document, stripped of any character encoding.
       */
-    URLUnencoded: string;
+    readonly URLUnencoded: string;
     /**
       * Gets the object that has the focus when the parent document has focus.
       */
-    activeElement: Element;
+    readonly activeElement: Element;
     /**
       * Sets or gets the color of all active links in the document.
       */
@@ -6988,15 +8049,15 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
     /**
       * Returns a reference to the collection of elements contained by the object.
       */
-    all: HTMLCollection;
+    readonly all: HTMLAllCollection;
     /**
       * Retrieves a collection of all a objects that have a name and/or id property. Objects in this collection are in HTML source order.
       */
-    anchors: HTMLCollection;
+    anchors: HTMLCollectionOf<HTMLAnchorElement>;
     /**
       * Retrieves a collection of all applet objects in the document.
       */
-    applets: HTMLCollection;
+    applets: HTMLCollectionOf<HTMLAppletElement>;
     /**
       * Deprecated. Sets or retrieves a value that indicates the background color behind the object. 
       */
@@ -7005,7 +8066,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * Specifies the beginning and end of the document body.
       */
     body: HTMLElement;
-    characterSet: string;
+    readonly characterSet: string;
     /**
       * Gets or sets the character set used to encode the object.
       */
@@ -7013,13 +8074,14 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
     /**
       * Gets a value that indicates whether standards-compliant mode is switched on for the object.
       */
-    compatMode: string;
+    readonly compatMode: string;
     cookie: string;
+    readonly currentScript: HTMLScriptElement | SVGScriptElement;
     /**
       * Gets the default character set from the current regional language settings.
       */
-    defaultCharset: string;
-    defaultView: Window;
+    readonly defaultCharset: string;
+    readonly defaultView: Window;
     /**
       * Sets or gets a value that indicates whether the document can be edited.
       */
@@ -7031,7 +8093,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
     /**
       * Gets an object representing the document type declaration associated with the current document. 
       */
-    doctype: DocumentType;
+    readonly doctype: DocumentType;
     /**
       * Gets a reference to the root node of the document. 
       */
@@ -7043,7 +8105,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
     /**
       * Retrieves a collection of all embed objects in the document.
       */
-    embeds: HTMLCollection;
+    embeds: HTMLCollectionOf<HTMLEmbedElement>;
     /**
       * Sets or gets the foreground (text) color of the document.
       */
@@ -7051,27 +8113,27 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
     /**
       * Retrieves a collection, in source order, of all form objects in the document.
       */
-    forms: HTMLCollection;
-    fullscreenElement: Element;
-    fullscreenEnabled: boolean;
-    head: HTMLHeadElement;
-    hidden: boolean;
+    forms: HTMLCollectionOf<HTMLFormElement>;
+    readonly fullscreenElement: Element | null;
+    readonly fullscreenEnabled: boolean;
+    readonly head: HTMLHeadElement;
+    readonly hidden: boolean;
     /**
       * Retrieves a collection, in source order, of img objects in the document.
       */
-    images: HTMLCollection;
+    images: HTMLCollectionOf<HTMLImageElement>;
     /**
       * Gets the implementation object of the current document. 
       */
-    implementation: DOMImplementation;
+    readonly implementation: DOMImplementation;
     /**
       * Returns the character encoding used to create the webpage that is loaded into the document object.
       */
-    inputEncoding: string;
+    readonly inputEncoding: string | null;
     /**
       * Gets the date that the page was last modified, if the page supplies one. 
       */
-    lastModified: string;
+    readonly lastModified: string;
     /**
       * Sets or gets the color of the document links. 
       */
@@ -7079,302 +8141,305 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
     /**
       * Retrieves a collection of all a objects that specify the href property and all area objects in the document.
       */
-    links: HTMLCollection;
+    links: HTMLCollectionOf<HTMLAnchorElement | HTMLAreaElement>;
     /**
       * Contains information about the current URL. 
       */
-    location: Location;
-    media: string;
+    readonly location: Location;
     msCSSOMElementFloatMetrics: boolean;
     msCapsLockWarningOff: boolean;
-    msHidden: boolean;
-    msVisibilityState: string;
     /**
       * Fires when the user aborts the download.
       * @param ev The event.
       */
-    onabort: (ev: Event) => any;
+    onabort: (this: this, ev: UIEvent) => any;
     /**
       * Fires when the object is set as the active element.
       * @param ev The event.
       */
-    onactivate: (ev: UIEvent) => any;
+    onactivate: (this: this, ev: UIEvent) => any;
     /**
       * Fires immediately before the object is set as the active element.
       * @param ev The event.
       */
-    onbeforeactivate: (ev: UIEvent) => any;
+    onbeforeactivate: (this: this, ev: UIEvent) => any;
     /**
       * Fires immediately before the activeElement is changed from the current object to another object in the parent document.
       * @param ev The event.
       */
-    onbeforedeactivate: (ev: UIEvent) => any;
+    onbeforedeactivate: (this: this, ev: UIEvent) => any;
     /** 
       * Fires when the object loses the input focus. 
       * @param ev The focus event.
       */
-    onblur: (ev: FocusEvent) => any;
+    onblur: (this: this, ev: FocusEvent) => any;
     /**
       * Occurs when playback is possible, but would require further buffering. 
       * @param ev The event.
       */
-    oncanplay: (ev: Event) => any;
-    oncanplaythrough: (ev: Event) => any;
+    oncanplay: (this: this, ev: Event) => any;
+    oncanplaythrough: (this: this, ev: Event) => any;
     /**
       * Fires when the contents of the object or selection have changed. 
       * @param ev The event.
       */
-    onchange: (ev: Event) => any;
+    onchange: (this: this, ev: Event) => any;
     /**
       * Fires when the user clicks the left mouse button on the object
       * @param ev The mouse event.
       */
-    onclick: (ev: MouseEvent) => any;
+    onclick: (this: this, ev: MouseEvent) => any;
     /**
       * Fires when the user clicks the right mouse button in the client area, opening the context menu. 
       * @param ev The mouse event.
       */
-    oncontextmenu: (ev: PointerEvent) => any;
+    oncontextmenu: (this: this, ev: PointerEvent) => any;
     /**
       * Fires when the user double-clicks the object.
       * @param ev The mouse event.
       */
-    ondblclick: (ev: MouseEvent) => any;
+    ondblclick: (this: this, ev: MouseEvent) => any;
     /**
       * Fires when the activeElement is changed from the current object to another object in the parent document.
       * @param ev The UI Event
       */
-    ondeactivate: (ev: UIEvent) => any;
+    ondeactivate: (this: this, ev: UIEvent) => any;
     /**
       * Fires on the source object continuously during a drag operation.
       * @param ev The event.
       */
-    ondrag: (ev: DragEvent) => any;
+    ondrag: (this: this, ev: DragEvent) => any;
     /**
       * Fires on the source object when the user releases the mouse at the close of a drag operation.
       * @param ev The event.
       */
-    ondragend: (ev: DragEvent) => any;
+    ondragend: (this: this, ev: DragEvent) => any;
     /** 
       * Fires on the target element when the user drags the object to a valid drop target.
       * @param ev The drag event.
       */
-    ondragenter: (ev: DragEvent) => any;
+    ondragenter: (this: this, ev: DragEvent) => any;
     /** 
       * Fires on the target object when the user moves the mouse out of a valid drop target during a drag operation.
       * @param ev The drag event.
       */
-    ondragleave: (ev: DragEvent) => any;
+    ondragleave: (this: this, ev: DragEvent) => any;
     /**
       * Fires on the target element continuously while the user drags the object over a valid drop target.
       * @param ev The event.
       */
-    ondragover: (ev: DragEvent) => any;
+    ondragover: (this: this, ev: DragEvent) => any;
     /**
       * Fires on the source object when the user starts to drag a text selection or selected object. 
       * @param ev The event.
       */
-    ondragstart: (ev: DragEvent) => any;
-    ondrop: (ev: DragEvent) => any;
+    ondragstart: (this: this, ev: DragEvent) => any;
+    ondrop: (this: this, ev: DragEvent) => any;
     /**
       * Occurs when the duration attribute is updated. 
       * @param ev The event.
       */
-    ondurationchange: (ev: Event) => any;
+    ondurationchange: (this: this, ev: Event) => any;
     /**
       * Occurs when the media element is reset to its initial state. 
       * @param ev The event.
       */
-    onemptied: (ev: Event) => any;
+    onemptied: (this: this, ev: Event) => any;
     /**
       * Occurs when the end of playback is reached. 
       * @param ev The event
       */
-    onended: (ev: Event) => any;
+    onended: (this: this, ev: MediaStreamErrorEvent) => any;
     /**
       * Fires when an error occurs during object loading.
       * @param ev The event.
       */
-    onerror: (ev: Event) => any;
+    onerror: (this: this, ev: ErrorEvent) => any;
     /**
       * Fires when the object receives focus. 
       * @param ev The event.
       */
-    onfocus: (ev: FocusEvent) => any;
-    onfullscreenchange: (ev: Event) => any;
-    onfullscreenerror: (ev: Event) => any;
-    oninput: (ev: Event) => any;
+    onfocus: (this: this, ev: FocusEvent) => any;
+    onfullscreenchange: (this: this, ev: Event) => any;
+    onfullscreenerror: (this: this, ev: Event) => any;
+    oninput: (this: this, ev: Event) => any;
+    oninvalid: (this: this, ev: Event) => any;
     /**
       * Fires when the user presses a key.
       * @param ev The keyboard event
       */
-    onkeydown: (ev: KeyboardEvent) => any;
+    onkeydown: (this: this, ev: KeyboardEvent) => any;
     /**
       * Fires when the user presses an alphanumeric key.
       * @param ev The event.
       */
-    onkeypress: (ev: KeyboardEvent) => any;
+    onkeypress: (this: this, ev: KeyboardEvent) => any;
     /**
       * Fires when the user releases a key.
       * @param ev The keyboard event
       */
-    onkeyup: (ev: KeyboardEvent) => any;
+    onkeyup: (this: this, ev: KeyboardEvent) => any;
     /**
       * Fires immediately after the browser loads the object. 
       * @param ev The event.
       */
-    onload: (ev: Event) => any;
+    onload: (this: this, ev: Event) => any;
     /**
       * Occurs when media data is loaded at the current playback position. 
       * @param ev The event.
       */
-    onloadeddata: (ev: Event) => any;
+    onloadeddata: (this: this, ev: Event) => any;
     /**
       * Occurs when the duration and dimensions of the media have been determined.
       * @param ev The event.
       */
-    onloadedmetadata: (ev: Event) => any;
+    onloadedmetadata: (this: this, ev: Event) => any;
     /**
       * Occurs when Internet Explorer begins looking for media data. 
       * @param ev The event.
       */
-    onloadstart: (ev: Event) => any;
+    onloadstart: (this: this, ev: Event) => any;
     /**
       * Fires when the user clicks the object with either mouse button. 
       * @param ev The mouse event.
       */
-    onmousedown: (ev: MouseEvent) => any;
+    onmousedown: (this: this, ev: MouseEvent) => any;
     /**
       * Fires when the user moves the mouse over the object. 
       * @param ev The mouse event.
       */
-    onmousemove: (ev: MouseEvent) => any;
+    onmousemove: (this: this, ev: MouseEvent) => any;
     /**
       * Fires when the user moves the mouse pointer outside the boundaries of the object. 
       * @param ev The mouse event.
       */
-    onmouseout: (ev: MouseEvent) => any;
+    onmouseout: (this: this, ev: MouseEvent) => any;
     /**
       * Fires when the user moves the mouse pointer into the object.
       * @param ev The mouse event.
       */
-    onmouseover: (ev: MouseEvent) => any;
+    onmouseover: (this: this, ev: MouseEvent) => any;
     /**
       * Fires when the user releases a mouse button while the mouse is over the object. 
       * @param ev The mouse event.
       */
-    onmouseup: (ev: MouseEvent) => any;
+    onmouseup: (this: this, ev: MouseEvent) => any;
     /**
       * Fires when the wheel button is rotated. 
       * @param ev The mouse event
       */
-    onmousewheel: (ev: MouseWheelEvent) => any;
-    onmscontentzoom: (ev: UIEvent) => any;
-    onmsgesturechange: (ev: MSGestureEvent) => any;
-    onmsgesturedoubletap: (ev: MSGestureEvent) => any;
-    onmsgestureend: (ev: MSGestureEvent) => any;
-    onmsgesturehold: (ev: MSGestureEvent) => any;
-    onmsgesturestart: (ev: MSGestureEvent) => any;
-    onmsgesturetap: (ev: MSGestureEvent) => any;
-    onmsinertiastart: (ev: MSGestureEvent) => any;
-    onmsmanipulationstatechanged: (ev: MSManipulationEvent) => any;
-    onmspointercancel: (ev: MSPointerEvent) => any;
-    onmspointerdown: (ev: MSPointerEvent) => any;
-    onmspointerenter: (ev: MSPointerEvent) => any;
-    onmspointerleave: (ev: MSPointerEvent) => any;
-    onmspointermove: (ev: MSPointerEvent) => any;
-    onmspointerout: (ev: MSPointerEvent) => any;
-    onmspointerover: (ev: MSPointerEvent) => any;
-    onmspointerup: (ev: MSPointerEvent) => any;
+    onmousewheel: (this: this, ev: WheelEvent) => any;
+    onmscontentzoom: (this: this, ev: UIEvent) => any;
+    onmsgesturechange: (this: this, ev: MSGestureEvent) => any;
+    onmsgesturedoubletap: (this: this, ev: MSGestureEvent) => any;
+    onmsgestureend: (this: this, ev: MSGestureEvent) => any;
+    onmsgesturehold: (this: this, ev: MSGestureEvent) => any;
+    onmsgesturestart: (this: this, ev: MSGestureEvent) => any;
+    onmsgesturetap: (this: this, ev: MSGestureEvent) => any;
+    onmsinertiastart: (this: this, ev: MSGestureEvent) => any;
+    onmsmanipulationstatechanged: (this: this, ev: MSManipulationEvent) => any;
+    onmspointercancel: (this: this, ev: MSPointerEvent) => any;
+    onmspointerdown: (this: this, ev: MSPointerEvent) => any;
+    onmspointerenter: (this: this, ev: MSPointerEvent) => any;
+    onmspointerleave: (this: this, ev: MSPointerEvent) => any;
+    onmspointermove: (this: this, ev: MSPointerEvent) => any;
+    onmspointerout: (this: this, ev: MSPointerEvent) => any;
+    onmspointerover: (this: this, ev: MSPointerEvent) => any;
+    onmspointerup: (this: this, ev: MSPointerEvent) => any;
     /**
       * Occurs when an item is removed from a Jump List of a webpage running in Site Mode. 
       * @param ev The event.
       */
-    onmssitemodejumplistitemremoved: (ev: MSSiteModeEvent) => any;
+    onmssitemodejumplistitemremoved: (this: this, ev: MSSiteModeEvent) => any;
     /**
       * Occurs when a user clicks a button in a Thumbnail Toolbar of a webpage running in Site Mode.
       * @param ev The event.
       */
-    onmsthumbnailclick: (ev: MSSiteModeEvent) => any;
+    onmsthumbnailclick: (this: this, ev: MSSiteModeEvent) => any;
     /**
       * Occurs when playback is paused.
       * @param ev The event.
       */
-    onpause: (ev: Event) => any;
+    onpause: (this: this, ev: Event) => any;
     /**
       * Occurs when the play method is requested. 
       * @param ev The event.
       */
-    onplay: (ev: Event) => any;
+    onplay: (this: this, ev: Event) => any;
     /**
       * Occurs when the audio or video has started playing. 
       * @param ev The event.
       */
-    onplaying: (ev: Event) => any;
-    onpointerlockchange: (ev: Event) => any;
-    onpointerlockerror: (ev: Event) => any;
+    onplaying: (this: this, ev: Event) => any;
+    onpointerlockchange: (this: this, ev: Event) => any;
+    onpointerlockerror: (this: this, ev: Event) => any;
     /**
       * Occurs to indicate progress while downloading media data. 
       * @param ev The event.
       */
-    onprogress: (ev: ProgressEvent) => any;
+    onprogress: (this: this, ev: ProgressEvent) => any;
     /**
       * Occurs when the playback rate is increased or decreased. 
       * @param ev The event.
       */
-    onratechange: (ev: Event) => any;
+    onratechange: (this: this, ev: Event) => any;
     /**
       * Fires when the state of the object has changed.
       * @param ev The event
       */
-    onreadystatechange: (ev: ProgressEvent) => any;
+    onreadystatechange: (this: this, ev: ProgressEvent) => any;
     /**
       * Fires when the user resets a form. 
       * @param ev The event.
       */
-    onreset: (ev: Event) => any;
+    onreset: (this: this, ev: Event) => any;
     /**
       * Fires when the user repositions the scroll box in the scroll bar on the object. 
       * @param ev The event.
       */
-    onscroll: (ev: UIEvent) => any;
+    onscroll: (this: this, ev: UIEvent) => any;
     /**
       * Occurs when the seek operation ends. 
       * @param ev The event.
       */
-    onseeked: (ev: Event) => any;
+    onseeked: (this: this, ev: Event) => any;
     /**
       * Occurs when the current playback position is moved. 
       * @param ev The event.
       */
-    onseeking: (ev: Event) => any;
+    onseeking: (this: this, ev: Event) => any;
     /**
       * Fires when the current selection changes.
       * @param ev The event.
       */
-    onselect: (ev: UIEvent) => any;
-    onselectstart: (ev: Event) => any;
+    onselect: (this: this, ev: UIEvent) => any;
+    /**
+      * Fires when the selection state of a document changes.
+      * @param ev The event.
+      */
+    onselectionchange: (this: this, ev: Event) => any;
+    onselectstart: (this: this, ev: Event) => any;
     /**
       * Occurs when the download has stopped. 
       * @param ev The event.
       */
-    onstalled: (ev: Event) => any;
+    onstalled: (this: this, ev: Event) => any;
     /**
       * Fires when the user clicks the Stop button or leaves the Web page.
       * @param ev The event.
       */
-    onstop: (ev: Event) => any;
-    onsubmit: (ev: Event) => any;
+    onstop: (this: this, ev: Event) => any;
+    onsubmit: (this: this, ev: Event) => any;
     /**
       * Occurs if the load operation has been intentionally halted. 
       * @param ev The event.
       */
-    onsuspend: (ev: Event) => any;
+    onsuspend: (this: this, ev: Event) => any;
     /**
       * Occurs to indicate the current playback position.
       * @param ev The event.
       */
-    ontimeupdate: (ev: Event) => any;
+    ontimeupdate: (this: this, ev: Event) => any;
     ontouchcancel: (ev: TouchEvent) => any;
     ontouchend: (ev: TouchEvent) => any;
     ontouchmove: (ev: TouchEvent) => any;
@@ -7383,59 +8448,59 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * Occurs when the volume is changed, or playback is muted or unmuted.
       * @param ev The event.
       */
-    onvolumechange: (ev: Event) => any;
+    onvolumechange: (this: this, ev: Event) => any;
     /**
       * Occurs when playback stops because the next frame of a video resource is not available. 
       * @param ev The event.
       */
-    onwaiting: (ev: Event) => any;
-    onwebkitfullscreenchange: (ev: Event) => any;
-    onwebkitfullscreenerror: (ev: Event) => any;
-    plugins: HTMLCollection;
-    pointerLockElement: Element;
+    onwaiting: (this: this, ev: Event) => any;
+    onwebkitfullscreenchange: (this: this, ev: Event) => any;
+    onwebkitfullscreenerror: (this: this, ev: Event) => any;
+    plugins: HTMLCollectionOf<HTMLEmbedElement>;
+    readonly pointerLockElement: Element;
     /**
       * Retrieves a value that indicates the current state of the object.
       */
-    readyState: string;
+    readonly readyState: string;
     /**
       * Gets the URL of the location that referred the user to the current page.
       */
-    referrer: string;
+    readonly referrer: string;
     /**
       * Gets the root svg element in the document hierarchy.
       */
-    rootElement: SVGSVGElement;
+    readonly rootElement: SVGSVGElement;
     /**
       * Retrieves a collection of all script objects in the document.
       */
-    scripts: HTMLCollection;
-    security: string;
+    scripts: HTMLCollectionOf<HTMLScriptElement>;
+    readonly scrollingElement: Element | null;
     /**
       * Retrieves a collection of styleSheet objects representing the style sheets that correspond to each instance of a link or style object in the document.
       */
-    styleSheets: StyleSheetList;
+    readonly styleSheets: StyleSheetList;
     /**
       * Contains the title of the document.
       */
     title: string;
-    visibilityState: string;
+    readonly visibilityState: string;
     /** 
       * Sets or gets the color of the links that the user has visited.
       */
     vlinkColor: string;
-    webkitCurrentFullScreenElement: Element;
-    webkitFullscreenElement: Element;
-    webkitFullscreenEnabled: boolean;
-    webkitIsFullScreen: boolean;
-    xmlEncoding: string;
+    readonly webkitCurrentFullScreenElement: Element | null;
+    readonly webkitFullscreenElement: Element | null;
+    readonly webkitFullscreenEnabled: boolean;
+    readonly webkitIsFullScreen: boolean;
+    readonly xmlEncoding: string | null;
     xmlStandalone: boolean;
     /**
       * Gets or sets the version attribute specified in the declaration of an XML document.
       */
-    xmlVersion: string;
-    currentScript: HTMLScriptElement;
+    xmlVersion: string | null;
     adoptNode(source: Node): Node;
     captureEvents(): void;
+    caretRangeFromPoint(x: number, y: number): Range;
     clear(): void;
     /**
       * Closes an output stream and forces the sent data to display.
@@ -7446,7 +8511,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * @param name String that sets the attribute object's name.
       */
     createAttribute(name: string): Attr;
-    createAttributeNS(namespaceURI: string, qualifiedName: string): Attr;
+    createAttributeNS(namespaceURI: string | null, qualifiedName: string): Attr;
     createCDATASection(data: string): CDATASection;
     /**
       * Creates a comment object with the specified data.
@@ -7462,37 +8527,24 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * @param tagName The name of an element.
       */
     createElement(tagName: "a"): HTMLAnchorElement;
-    createElement(tagName: "abbr"): HTMLPhraseElement;
-    createElement(tagName: "acronym"): HTMLPhraseElement;
-    createElement(tagName: "address"): HTMLBlockElement;
     createElement(tagName: "applet"): HTMLAppletElement;
     createElement(tagName: "area"): HTMLAreaElement;
     createElement(tagName: "audio"): HTMLAudioElement;
-    createElement(tagName: "b"): HTMLPhraseElement;
     createElement(tagName: "base"): HTMLBaseElement;
     createElement(tagName: "basefont"): HTMLBaseFontElement;
-    createElement(tagName: "bdo"): HTMLPhraseElement;
-    createElement(tagName: "big"): HTMLPhraseElement;
-    createElement(tagName: "blockquote"): HTMLBlockElement;
+    createElement(tagName: "blockquote"): HTMLQuoteElement;
     createElement(tagName: "body"): HTMLBodyElement;
     createElement(tagName: "br"): HTMLBRElement;
     createElement(tagName: "button"): HTMLButtonElement;
     createElement(tagName: "canvas"): HTMLCanvasElement;
     createElement(tagName: "caption"): HTMLTableCaptionElement;
-    createElement(tagName: "center"): HTMLBlockElement;
-    createElement(tagName: "cite"): HTMLPhraseElement;
-    createElement(tagName: "code"): HTMLPhraseElement;
     createElement(tagName: "col"): HTMLTableColElement;
     createElement(tagName: "colgroup"): HTMLTableColElement;
     createElement(tagName: "datalist"): HTMLDataListElement;
-    createElement(tagName: "dd"): HTMLDDElement;
     createElement(tagName: "del"): HTMLModElement;
-    createElement(tagName: "dfn"): HTMLPhraseElement;
     createElement(tagName: "dir"): HTMLDirectoryElement;
     createElement(tagName: "div"): HTMLDivElement;
     createElement(tagName: "dl"): HTMLDListElement;
-    createElement(tagName: "dt"): HTMLDTElement;
-    createElement(tagName: "em"): HTMLPhraseElement;
     createElement(tagName: "embed"): HTMLEmbedElement;
     createElement(tagName: "fieldset"): HTMLFieldSetElement;
     createElement(tagName: "font"): HTMLFontElement;
@@ -7508,52 +8560,41 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
     createElement(tagName: "head"): HTMLHeadElement;
     createElement(tagName: "hr"): HTMLHRElement;
     createElement(tagName: "html"): HTMLHtmlElement;
-    createElement(tagName: "i"): HTMLPhraseElement;
     createElement(tagName: "iframe"): HTMLIFrameElement;
     createElement(tagName: "img"): HTMLImageElement;
     createElement(tagName: "input"): HTMLInputElement;
     createElement(tagName: "ins"): HTMLModElement;
-    createElement(tagName: "isindex"): HTMLIsIndexElement;
-    createElement(tagName: "kbd"): HTMLPhraseElement;
-    createElement(tagName: "keygen"): HTMLBlockElement;
+    createElement(tagName: "isindex"): HTMLUnknownElement;
     createElement(tagName: "label"): HTMLLabelElement;
     createElement(tagName: "legend"): HTMLLegendElement;
     createElement(tagName: "li"): HTMLLIElement;
     createElement(tagName: "link"): HTMLLinkElement;
-    createElement(tagName: "listing"): HTMLBlockElement;
+    createElement(tagName: "listing"): HTMLPreElement;
     createElement(tagName: "map"): HTMLMapElement;
     createElement(tagName: "marquee"): HTMLMarqueeElement;
     createElement(tagName: "menu"): HTMLMenuElement;
     createElement(tagName: "meta"): HTMLMetaElement;
-    createElement(tagName: "nextid"): HTMLNextIdElement;
-    createElement(tagName: "nobr"): HTMLPhraseElement;
+    createElement(tagName: "meter"): HTMLMeterElement;
+    createElement(tagName: "nextid"): HTMLUnknownElement;
     createElement(tagName: "object"): HTMLObjectElement;
     createElement(tagName: "ol"): HTMLOListElement;
     createElement(tagName: "optgroup"): HTMLOptGroupElement;
     createElement(tagName: "option"): HTMLOptionElement;
     createElement(tagName: "p"): HTMLParagraphElement;
     createElement(tagName: "param"): HTMLParamElement;
-    createElement(tagName: "plaintext"): HTMLBlockElement;
+    createElement(tagName: "picture"): HTMLPictureElement;
     createElement(tagName: "pre"): HTMLPreElement;
     createElement(tagName: "progress"): HTMLProgressElement;
     createElement(tagName: "q"): HTMLQuoteElement;
-    createElement(tagName: "rt"): HTMLPhraseElement;
-    createElement(tagName: "ruby"): HTMLPhraseElement;
-    createElement(tagName: "s"): HTMLPhraseElement;
-    createElement(tagName: "samp"): HTMLPhraseElement;
     createElement(tagName: "script"): HTMLScriptElement;
     createElement(tagName: "select"): HTMLSelectElement;
-    createElement(tagName: "small"): HTMLPhraseElement;
     createElement(tagName: "source"): HTMLSourceElement;
     createElement(tagName: "span"): HTMLSpanElement;
-    createElement(tagName: "strike"): HTMLPhraseElement;
-    createElement(tagName: "strong"): HTMLPhraseElement;
     createElement(tagName: "style"): HTMLStyleElement;
-    createElement(tagName: "sub"): HTMLPhraseElement;
-    createElement(tagName: "sup"): HTMLPhraseElement;
     createElement(tagName: "table"): HTMLTableElement;
     createElement(tagName: "tbody"): HTMLTableSectionElement;
     createElement(tagName: "td"): HTMLTableDataCellElement;
+    createElement(tagName: "template"): HTMLTemplateElement;
     createElement(tagName: "textarea"): HTMLTextAreaElement;
     createElement(tagName: "tfoot"): HTMLTableSectionElement;
     createElement(tagName: "th"): HTMLTableHeaderCellElement;
@@ -7561,14 +8602,12 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
     createElement(tagName: "title"): HTMLTitleElement;
     createElement(tagName: "tr"): HTMLTableRowElement;
     createElement(tagName: "track"): HTMLTrackElement;
-    createElement(tagName: "tt"): HTMLPhraseElement;
-    createElement(tagName: "u"): HTMLPhraseElement;
     createElement(tagName: "ul"): HTMLUListElement;
-    createElement(tagName: "var"): HTMLPhraseElement;
     createElement(tagName: "video"): HTMLVideoElement;
     createElement(tagName: "x-ms-webview"): MSHTMLWebViewElement;
-    createElement(tagName: "xmp"): HTMLBlockElement;
+    createElement(tagName: "xmp"): HTMLPreElement;
     createElement(tagName: string): HTMLElement;
+    createElementNS(namespaceURI: "http://www.w3.org/1999/xhtml", qualifiedName: string): HTMLElement
     createElementNS(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: "a"): SVGAElement
     createElementNS(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: "circle"): SVGCircleElement
     createElementNS(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: "clipPath"): SVGClipPathElement
@@ -7631,7 +8670,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
     createElementNS(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: "use"): SVGUseElement
     createElementNS(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: "view"): SVGViewElement
     createElementNS(namespaceURI: "http://www.w3.org/2000/svg", qualifiedName: string): SVGElement
-    createElementNS(namespaceURI: string, qualifiedName: string): Element;
+    createElementNS(namespaceURI: string | null, qualifiedName: string): Element;
     createExpression(expression: string, resolver: XPathNSResolver): XPathExpression;
     createNSResolver(nodeResolver: Node): XPathNSResolver;
     /**
@@ -7652,7 +8691,7 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * @param data String that specifies the nodeValue property of the text node.
       */
     createTextNode(data: string): Text;
-    createTouch(view: any, target: EventTarget, identifier: number, pageX: number, pageY: number, screenX: number, screenY: number): Touch;
+    createTouch(view: Window, target: EventTarget, identifier: number, pageX: number, pageY: number, screenX: number, screenY: number): Touch;
     createTouchList(...touches: Touch[]): TouchList;
     /**
       * Creates a TreeWalker object that you can use to traverse filtered lists of nodes or elements in a document.
@@ -7691,56 +8730,56 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * Returns a reference to the first object with the specified value of the ID or NAME attribute.
       * @param elementId String that specifies the ID value. Case-insensitive.
       */
-    getElementById(elementId: string): HTMLElement;
-    getElementsByClassName(classNames: string): NodeListOf<Element>;
+    getElementById(elementId: string): HTMLElement | null;
+    getElementsByClassName(classNames: string): HTMLCollectionOf<Element>;
     /**
       * Gets a collection of objects based on the value of the NAME or ID attribute.
       * @param elementName Gets a collection of objects based on the value of the NAME or ID attribute.
       */
-    getElementsByName(elementName: string): NodeListOf<Element>;
+    getElementsByName(elementName: string): NodeListOf<HTMLElement>;
     /**
       * Retrieves a collection of objects based on the specified element name.
       * @param name Specifies the name of an element.
       */
     getElementsByTagName(tagname: "a"): NodeListOf<HTMLAnchorElement>;
-    getElementsByTagName(tagname: "abbr"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(tagname: "acronym"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(tagname: "address"): NodeListOf<HTMLBlockElement>;
+    getElementsByTagName(tagname: "abbr"): NodeListOf<HTMLElement>;
+    getElementsByTagName(tagname: "acronym"): NodeListOf<HTMLElement>;
+    getElementsByTagName(tagname: "address"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "applet"): NodeListOf<HTMLAppletElement>;
     getElementsByTagName(tagname: "area"): NodeListOf<HTMLAreaElement>;
     getElementsByTagName(tagname: "article"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "aside"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "audio"): NodeListOf<HTMLAudioElement>;
-    getElementsByTagName(tagname: "b"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(tagname: "b"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "base"): NodeListOf<HTMLBaseElement>;
     getElementsByTagName(tagname: "basefont"): NodeListOf<HTMLBaseFontElement>;
-    getElementsByTagName(tagname: "bdo"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(tagname: "big"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(tagname: "blockquote"): NodeListOf<HTMLBlockElement>;
+    getElementsByTagName(tagname: "bdo"): NodeListOf<HTMLElement>;
+    getElementsByTagName(tagname: "big"): NodeListOf<HTMLElement>;
+    getElementsByTagName(tagname: "blockquote"): NodeListOf<HTMLQuoteElement>;
     getElementsByTagName(tagname: "body"): NodeListOf<HTMLBodyElement>;
     getElementsByTagName(tagname: "br"): NodeListOf<HTMLBRElement>;
     getElementsByTagName(tagname: "button"): NodeListOf<HTMLButtonElement>;
     getElementsByTagName(tagname: "canvas"): NodeListOf<HTMLCanvasElement>;
     getElementsByTagName(tagname: "caption"): NodeListOf<HTMLTableCaptionElement>;
-    getElementsByTagName(tagname: "center"): NodeListOf<HTMLBlockElement>;
+    getElementsByTagName(tagname: "center"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "circle"): NodeListOf<SVGCircleElement>;
-    getElementsByTagName(tagname: "cite"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(tagname: "cite"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "clippath"): NodeListOf<SVGClipPathElement>;
-    getElementsByTagName(tagname: "code"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(tagname: "code"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "col"): NodeListOf<HTMLTableColElement>;
     getElementsByTagName(tagname: "colgroup"): NodeListOf<HTMLTableColElement>;
     getElementsByTagName(tagname: "datalist"): NodeListOf<HTMLDataListElement>;
-    getElementsByTagName(tagname: "dd"): NodeListOf<HTMLDDElement>;
+    getElementsByTagName(tagname: "dd"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "defs"): NodeListOf<SVGDefsElement>;
     getElementsByTagName(tagname: "del"): NodeListOf<HTMLModElement>;
     getElementsByTagName(tagname: "desc"): NodeListOf<SVGDescElement>;
-    getElementsByTagName(tagname: "dfn"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(tagname: "dfn"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "dir"): NodeListOf<HTMLDirectoryElement>;
     getElementsByTagName(tagname: "div"): NodeListOf<HTMLDivElement>;
     getElementsByTagName(tagname: "dl"): NodeListOf<HTMLDListElement>;
-    getElementsByTagName(tagname: "dt"): NodeListOf<HTMLDTElement>;
+    getElementsByTagName(tagname: "dt"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "ellipse"): NodeListOf<SVGEllipseElement>;
-    getElementsByTagName(tagname: "em"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(tagname: "em"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "embed"): NodeListOf<HTMLEmbedElement>;
     getElementsByTagName(tagname: "feblend"): NodeListOf<SVGFEBlendElement>;
     getElementsByTagName(tagname: "fecolormatrix"): NodeListOf<SVGFEColorMatrixElement>;
@@ -7788,22 +8827,22 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
     getElementsByTagName(tagname: "hgroup"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "hr"): NodeListOf<HTMLHRElement>;
     getElementsByTagName(tagname: "html"): NodeListOf<HTMLHtmlElement>;
-    getElementsByTagName(tagname: "i"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(tagname: "i"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "iframe"): NodeListOf<HTMLIFrameElement>;
     getElementsByTagName(tagname: "image"): NodeListOf<SVGImageElement>;
     getElementsByTagName(tagname: "img"): NodeListOf<HTMLImageElement>;
     getElementsByTagName(tagname: "input"): NodeListOf<HTMLInputElement>;
     getElementsByTagName(tagname: "ins"): NodeListOf<HTMLModElement>;
-    getElementsByTagName(tagname: "isindex"): NodeListOf<HTMLIsIndexElement>;
-    getElementsByTagName(tagname: "kbd"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(tagname: "keygen"): NodeListOf<HTMLBlockElement>;
+    getElementsByTagName(tagname: "isindex"): NodeListOf<HTMLUnknownElement>;
+    getElementsByTagName(tagname: "kbd"): NodeListOf<HTMLElement>;
+    getElementsByTagName(tagname: "keygen"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "label"): NodeListOf<HTMLLabelElement>;
     getElementsByTagName(tagname: "legend"): NodeListOf<HTMLLegendElement>;
     getElementsByTagName(tagname: "li"): NodeListOf<HTMLLIElement>;
     getElementsByTagName(tagname: "line"): NodeListOf<SVGLineElement>;
     getElementsByTagName(tagname: "lineargradient"): NodeListOf<SVGLinearGradientElement>;
     getElementsByTagName(tagname: "link"): NodeListOf<HTMLLinkElement>;
-    getElementsByTagName(tagname: "listing"): NodeListOf<HTMLBlockElement>;
+    getElementsByTagName(tagname: "listing"): NodeListOf<HTMLPreElement>;
     getElementsByTagName(tagname: "map"): NodeListOf<HTMLMapElement>;
     getElementsByTagName(tagname: "mark"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "marker"): NodeListOf<SVGMarkerElement>;
@@ -7812,9 +8851,10 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
     getElementsByTagName(tagname: "menu"): NodeListOf<HTMLMenuElement>;
     getElementsByTagName(tagname: "meta"): NodeListOf<HTMLMetaElement>;
     getElementsByTagName(tagname: "metadata"): NodeListOf<SVGMetadataElement>;
+    getElementsByTagName(tagname: "meter"): NodeListOf<HTMLMeterElement>;
     getElementsByTagName(tagname: "nav"): NodeListOf<HTMLElement>;
-    getElementsByTagName(tagname: "nextid"): NodeListOf<HTMLNextIdElement>;
-    getElementsByTagName(tagname: "nobr"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(tagname: "nextid"): NodeListOf<HTMLUnknownElement>;
+    getElementsByTagName(tagname: "nobr"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "noframes"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "noscript"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "object"): NodeListOf<HTMLObjectElement>;
@@ -7825,7 +8865,8 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
     getElementsByTagName(tagname: "param"): NodeListOf<HTMLParamElement>;
     getElementsByTagName(tagname: "path"): NodeListOf<SVGPathElement>;
     getElementsByTagName(tagname: "pattern"): NodeListOf<SVGPatternElement>;
-    getElementsByTagName(tagname: "plaintext"): NodeListOf<HTMLBlockElement>;
+    getElementsByTagName(tagname: "picture"): NodeListOf<HTMLPictureElement>;
+    getElementsByTagName(tagname: "plaintext"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "polygon"): NodeListOf<SVGPolygonElement>;
     getElementsByTagName(tagname: "polyline"): NodeListOf<SVGPolylineElement>;
     getElementsByTagName(tagname: "pre"): NodeListOf<HTMLPreElement>;
@@ -7833,28 +8874,29 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
     getElementsByTagName(tagname: "q"): NodeListOf<HTMLQuoteElement>;
     getElementsByTagName(tagname: "radialgradient"): NodeListOf<SVGRadialGradientElement>;
     getElementsByTagName(tagname: "rect"): NodeListOf<SVGRectElement>;
-    getElementsByTagName(tagname: "rt"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(tagname: "ruby"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(tagname: "s"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(tagname: "samp"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(tagname: "rt"): NodeListOf<HTMLElement>;
+    getElementsByTagName(tagname: "ruby"): NodeListOf<HTMLElement>;
+    getElementsByTagName(tagname: "s"): NodeListOf<HTMLElement>;
+    getElementsByTagName(tagname: "samp"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "script"): NodeListOf<HTMLScriptElement>;
     getElementsByTagName(tagname: "section"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "select"): NodeListOf<HTMLSelectElement>;
-    getElementsByTagName(tagname: "small"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(tagname: "small"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "source"): NodeListOf<HTMLSourceElement>;
     getElementsByTagName(tagname: "span"): NodeListOf<HTMLSpanElement>;
     getElementsByTagName(tagname: "stop"): NodeListOf<SVGStopElement>;
-    getElementsByTagName(tagname: "strike"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(tagname: "strong"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(tagname: "strike"): NodeListOf<HTMLElement>;
+    getElementsByTagName(tagname: "strong"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "style"): NodeListOf<HTMLStyleElement>;
-    getElementsByTagName(tagname: "sub"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(tagname: "sup"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(tagname: "sub"): NodeListOf<HTMLElement>;
+    getElementsByTagName(tagname: "sup"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "svg"): NodeListOf<SVGSVGElement>;
     getElementsByTagName(tagname: "switch"): NodeListOf<SVGSwitchElement>;
     getElementsByTagName(tagname: "symbol"): NodeListOf<SVGSymbolElement>;
     getElementsByTagName(tagname: "table"): NodeListOf<HTMLTableElement>;
     getElementsByTagName(tagname: "tbody"): NodeListOf<HTMLTableSectionElement>;
     getElementsByTagName(tagname: "td"): NodeListOf<HTMLTableDataCellElement>;
+    getElementsByTagName(tagname: "template"): NodeListOf<HTMLTemplateElement>;
     getElementsByTagName(tagname: "text"): NodeListOf<SVGTextElement>;
     getElementsByTagName(tagname: "textpath"): NodeListOf<SVGTextPathElement>;
     getElementsByTagName(tagname: "textarea"): NodeListOf<HTMLTextAreaElement>;
@@ -7865,18 +8907,20 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
     getElementsByTagName(tagname: "tr"): NodeListOf<HTMLTableRowElement>;
     getElementsByTagName(tagname: "track"): NodeListOf<HTMLTrackElement>;
     getElementsByTagName(tagname: "tspan"): NodeListOf<SVGTSpanElement>;
-    getElementsByTagName(tagname: "tt"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(tagname: "u"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(tagname: "tt"): NodeListOf<HTMLElement>;
+    getElementsByTagName(tagname: "u"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "ul"): NodeListOf<HTMLUListElement>;
     getElementsByTagName(tagname: "use"): NodeListOf<SVGUseElement>;
-    getElementsByTagName(tagname: "var"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(tagname: "var"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "video"): NodeListOf<HTMLVideoElement>;
     getElementsByTagName(tagname: "view"): NodeListOf<SVGViewElement>;
     getElementsByTagName(tagname: "wbr"): NodeListOf<HTMLElement>;
     getElementsByTagName(tagname: "x-ms-webview"): NodeListOf<MSHTMLWebViewElement>;
-    getElementsByTagName(tagname: "xmp"): NodeListOf<HTMLBlockElement>;
+    getElementsByTagName(tagname: "xmp"): NodeListOf<HTMLPreElement>;
     getElementsByTagName(tagname: string): NodeListOf<Element>;
-    getElementsByTagNameNS(namespaceURI: string, localName: string): NodeListOf<Element>;
+    getElementsByTagNameNS(namespaceURI: "http://www.w3.org/1999/xhtml", localName: string): HTMLCollectionOf<HTMLElement>;
+    getElementsByTagNameNS(namespaceURI: "http://www.w3.org/2000/svg", localName: string): HTMLCollectionOf<SVGElement>;
+    getElementsByTagNameNS(namespaceURI: string, localName: string): HTMLCollectionOf<Element>;
     /**
       * Returns an object representing the current selection of the document that is loaded into the object displaying a webpage.
       */
@@ -7886,8 +8930,8 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       */
     hasFocus(): boolean;
     importNode(importedNode: Node, deep: boolean): Node;
-    msElementsFromPoint(x: number, y: number): NodeList;
-    msElementsFromRect(left: number, top: number, width: number, height: number): NodeList;
+    msElementsFromPoint(x: number, y: number): NodeListOf<Element>;
+    msElementsFromRect(left: number, top: number, width: number, height: number): NodeListOf<Element>;
     /**
       * Opens a new window and loads a document specified by a given URL. Also, opens a new window that uses the url parameter and the name parameter to collect the output of the write method and the writeln method.
       * @param url Specifies a MIME type for the document.
@@ -7943,101 +8987,103 @@ interface Document extends Node, GlobalEventHandlers, NodeSelector, DocumentEven
       * @param content The text and HTML tags to write.
       */
     writeln(...content: string[]): void;
-    addEventListener(type: "MSContentZoom", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureChange", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureDoubleTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureEnd", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureHold", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSInertiaStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSManipulationStateChanged", listener: (ev: MSManipulationEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerCancel", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerDown", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerEnter", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerLeave", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerMove", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOut", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOver", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerUp", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "abort", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "activate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforedeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "blur", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplay", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplaythrough", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "change", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "click", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "contextmenu", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dblclick", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "deactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drag", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragend", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragenter", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragleave", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragover", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragstart", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drop", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "durationchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "emptied", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "ended", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "focus", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "fullscreenchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "fullscreenerror", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "input", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "keydown", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keypress", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keyup", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadeddata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadedmetadata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousedown", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousemove", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseout", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseover", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseup", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousewheel", listener: (ev: MouseWheelEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mssitemodejumplistitemremoved", listener: (ev: MSSiteModeEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "msthumbnailclick", listener: (ev: MSSiteModeEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pause", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "play", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "playing", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointercancel", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerdown", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerenter", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerleave", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerlockchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerlockerror", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointermove", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerout", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerover", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerup", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "progress", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ratechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "readystatechange", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "reset", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "scroll", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeked", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeking", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "select", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "selectstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "stalled", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "stop", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "submit", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "suspend", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "timeupdate", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchcancel", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchend", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchmove", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchstart", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "volumechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "waiting", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenerror", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "wheel", listener: (ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "fullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "fullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mssitemodejumplistitemremoved", listener: (this: this, ev: MSSiteModeEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "msthumbnailclick", listener: (this: this, ev: MSSiteModeEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerlockchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerlockerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "readystatechange", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "selectionchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "stop", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -8046,7 +9092,7 @@ declare var Document: {
     new(): Document;
 }
 
-interface DocumentFragment extends Node, NodeSelector {
+interface DocumentFragment extends Node, NodeSelector, ParentNode {
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -8056,12 +9102,12 @@ declare var DocumentFragment: {
 }
 
 interface DocumentType extends Node, ChildNode {
-    entities: NamedNodeMap;
-    internalSubset: string;
-    name: string;
-    notations: NamedNodeMap;
-    publicId: string;
-    systemId: string;
+    readonly entities: NamedNodeMap;
+    readonly internalSubset: string | null;
+    readonly name: string;
+    readonly notations: NamedNodeMap;
+    readonly publicId: string | null;
+    readonly systemId: string | null;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -8071,7 +9117,7 @@ declare var DocumentType: {
 }
 
 interface DragEvent extends MouseEvent {
-    dataTransfer: DataTransfer;
+    readonly dataTransfer: DataTransfer;
     initDragEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, viewArg: Window, detailArg: number, screenXArg: number, screenYArg: number, clientXArg: number, clientYArg: number, ctrlKeyArg: boolean, altKeyArg: boolean, shiftKeyArg: boolean, metaKeyArg: boolean, buttonArg: number, relatedTargetArg: EventTarget, dataTransferArg: DataTransfer): void;
     msConvertURL(file: File, targetType: string, targetURL?: string): void;
 }
@@ -8082,12 +9128,12 @@ declare var DragEvent: {
 }
 
 interface DynamicsCompressorNode extends AudioNode {
-    attack: AudioParam;
-    knee: AudioParam;
-    ratio: AudioParam;
-    reduction: AudioParam;
-    release: AudioParam;
-    threshold: AudioParam;
+    readonly attack: AudioParam;
+    readonly knee: AudioParam;
+    readonly ratio: AudioParam;
+    readonly reduction: AudioParam;
+    readonly release: AudioParam;
+    readonly threshold: AudioParam;
 }
 
 declare var DynamicsCompressorNode: {
@@ -8095,106 +9141,115 @@ declare var DynamicsCompressorNode: {
     new(): DynamicsCompressorNode;
 }
 
+interface EXT_frag_depth {
+}
+
+declare var EXT_frag_depth: {
+    prototype: EXT_frag_depth;
+    new(): EXT_frag_depth;
+}
+
 interface EXT_texture_filter_anisotropic {
-    MAX_TEXTURE_MAX_ANISOTROPY_EXT: number;
-    TEXTURE_MAX_ANISOTROPY_EXT: number;
+    readonly MAX_TEXTURE_MAX_ANISOTROPY_EXT: number;
+    readonly TEXTURE_MAX_ANISOTROPY_EXT: number;
 }
 
 declare var EXT_texture_filter_anisotropic: {
     prototype: EXT_texture_filter_anisotropic;
     new(): EXT_texture_filter_anisotropic;
-    MAX_TEXTURE_MAX_ANISOTROPY_EXT: number;
-    TEXTURE_MAX_ANISOTROPY_EXT: number;
+    readonly MAX_TEXTURE_MAX_ANISOTROPY_EXT: number;
+    readonly TEXTURE_MAX_ANISOTROPY_EXT: number;
 }
 
-interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelector, ChildNode {
-    classList: DOMTokenList;
-    clientHeight: number;
-    clientLeft: number;
-    clientTop: number;
-    clientWidth: number;
+interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelector, ChildNode, ParentNode {
+    readonly classList: DOMTokenList;
+    className: string;
+    readonly clientHeight: number;
+    readonly clientLeft: number;
+    readonly clientTop: number;
+    readonly clientWidth: number;
+    id: string;
     msContentZoomFactor: number;
-    msRegionOverflow: string;
-    onariarequest: (ev: AriaRequestEvent) => any;
-    oncommand: (ev: CommandEvent) => any;
-    ongotpointercapture: (ev: PointerEvent) => any;
-    onlostpointercapture: (ev: PointerEvent) => any;
-    onmsgesturechange: (ev: MSGestureEvent) => any;
-    onmsgesturedoubletap: (ev: MSGestureEvent) => any;
-    onmsgestureend: (ev: MSGestureEvent) => any;
-    onmsgesturehold: (ev: MSGestureEvent) => any;
-    onmsgesturestart: (ev: MSGestureEvent) => any;
-    onmsgesturetap: (ev: MSGestureEvent) => any;
-    onmsgotpointercapture: (ev: MSPointerEvent) => any;
-    onmsinertiastart: (ev: MSGestureEvent) => any;
-    onmslostpointercapture: (ev: MSPointerEvent) => any;
-    onmspointercancel: (ev: MSPointerEvent) => any;
-    onmspointerdown: (ev: MSPointerEvent) => any;
-    onmspointerenter: (ev: MSPointerEvent) => any;
-    onmspointerleave: (ev: MSPointerEvent) => any;
-    onmspointermove: (ev: MSPointerEvent) => any;
-    onmspointerout: (ev: MSPointerEvent) => any;
-    onmspointerover: (ev: MSPointerEvent) => any;
-    onmspointerup: (ev: MSPointerEvent) => any;
+    readonly msRegionOverflow: string;
+    onariarequest: (this: this, ev: AriaRequestEvent) => any;
+    oncommand: (this: this, ev: CommandEvent) => any;
+    ongotpointercapture: (this: this, ev: PointerEvent) => any;
+    onlostpointercapture: (this: this, ev: PointerEvent) => any;
+    onmsgesturechange: (this: this, ev: MSGestureEvent) => any;
+    onmsgesturedoubletap: (this: this, ev: MSGestureEvent) => any;
+    onmsgestureend: (this: this, ev: MSGestureEvent) => any;
+    onmsgesturehold: (this: this, ev: MSGestureEvent) => any;
+    onmsgesturestart: (this: this, ev: MSGestureEvent) => any;
+    onmsgesturetap: (this: this, ev: MSGestureEvent) => any;
+    onmsgotpointercapture: (this: this, ev: MSPointerEvent) => any;
+    onmsinertiastart: (this: this, ev: MSGestureEvent) => any;
+    onmslostpointercapture: (this: this, ev: MSPointerEvent) => any;
+    onmspointercancel: (this: this, ev: MSPointerEvent) => any;
+    onmspointerdown: (this: this, ev: MSPointerEvent) => any;
+    onmspointerenter: (this: this, ev: MSPointerEvent) => any;
+    onmspointerleave: (this: this, ev: MSPointerEvent) => any;
+    onmspointermove: (this: this, ev: MSPointerEvent) => any;
+    onmspointerout: (this: this, ev: MSPointerEvent) => any;
+    onmspointerover: (this: this, ev: MSPointerEvent) => any;
+    onmspointerup: (this: this, ev: MSPointerEvent) => any;
     ontouchcancel: (ev: TouchEvent) => any;
     ontouchend: (ev: TouchEvent) => any;
     ontouchmove: (ev: TouchEvent) => any;
     ontouchstart: (ev: TouchEvent) => any;
-    onwebkitfullscreenchange: (ev: Event) => any;
-    onwebkitfullscreenerror: (ev: Event) => any;
-    scrollHeight: number;
+    onwebkitfullscreenchange: (this: this, ev: Event) => any;
+    onwebkitfullscreenerror: (this: this, ev: Event) => any;
+    readonly prefix: string | null;
+    readonly scrollHeight: number;
     scrollLeft: number;
     scrollTop: number;
-    scrollWidth: number;
-    tagName: string;
-    id: string;
-    className: string;
+    readonly scrollWidth: number;
+    readonly tagName: string;
     innerHTML: string;
-    getAttribute(name?: string): string;
+    getAttribute(name: string): string | null;
     getAttributeNS(namespaceURI: string, localName: string): string;
     getAttributeNode(name: string): Attr;
     getAttributeNodeNS(namespaceURI: string, localName: string): Attr;
     getBoundingClientRect(): ClientRect;
     getClientRects(): ClientRectList;
     getElementsByTagName(name: "a"): NodeListOf<HTMLAnchorElement>;
-    getElementsByTagName(name: "abbr"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(name: "acronym"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(name: "address"): NodeListOf<HTMLBlockElement>;
+    getElementsByTagName(name: "abbr"): NodeListOf<HTMLElement>;
+    getElementsByTagName(name: "acronym"): NodeListOf<HTMLElement>;
+    getElementsByTagName(name: "address"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "applet"): NodeListOf<HTMLAppletElement>;
     getElementsByTagName(name: "area"): NodeListOf<HTMLAreaElement>;
     getElementsByTagName(name: "article"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "aside"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "audio"): NodeListOf<HTMLAudioElement>;
-    getElementsByTagName(name: "b"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(name: "b"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "base"): NodeListOf<HTMLBaseElement>;
     getElementsByTagName(name: "basefont"): NodeListOf<HTMLBaseFontElement>;
-    getElementsByTagName(name: "bdo"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(name: "big"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(name: "blockquote"): NodeListOf<HTMLBlockElement>;
+    getElementsByTagName(name: "bdo"): NodeListOf<HTMLElement>;
+    getElementsByTagName(name: "big"): NodeListOf<HTMLElement>;
+    getElementsByTagName(name: "blockquote"): NodeListOf<HTMLQuoteElement>;
     getElementsByTagName(name: "body"): NodeListOf<HTMLBodyElement>;
     getElementsByTagName(name: "br"): NodeListOf<HTMLBRElement>;
     getElementsByTagName(name: "button"): NodeListOf<HTMLButtonElement>;
     getElementsByTagName(name: "canvas"): NodeListOf<HTMLCanvasElement>;
     getElementsByTagName(name: "caption"): NodeListOf<HTMLTableCaptionElement>;
-    getElementsByTagName(name: "center"): NodeListOf<HTMLBlockElement>;
+    getElementsByTagName(name: "center"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "circle"): NodeListOf<SVGCircleElement>;
-    getElementsByTagName(name: "cite"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(name: "cite"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "clippath"): NodeListOf<SVGClipPathElement>;
-    getElementsByTagName(name: "code"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(name: "code"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "col"): NodeListOf<HTMLTableColElement>;
     getElementsByTagName(name: "colgroup"): NodeListOf<HTMLTableColElement>;
     getElementsByTagName(name: "datalist"): NodeListOf<HTMLDataListElement>;
-    getElementsByTagName(name: "dd"): NodeListOf<HTMLDDElement>;
+    getElementsByTagName(name: "dd"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "defs"): NodeListOf<SVGDefsElement>;
     getElementsByTagName(name: "del"): NodeListOf<HTMLModElement>;
     getElementsByTagName(name: "desc"): NodeListOf<SVGDescElement>;
-    getElementsByTagName(name: "dfn"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(name: "dfn"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "dir"): NodeListOf<HTMLDirectoryElement>;
     getElementsByTagName(name: "div"): NodeListOf<HTMLDivElement>;
     getElementsByTagName(name: "dl"): NodeListOf<HTMLDListElement>;
-    getElementsByTagName(name: "dt"): NodeListOf<HTMLDTElement>;
+    getElementsByTagName(name: "dt"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "ellipse"): NodeListOf<SVGEllipseElement>;
-    getElementsByTagName(name: "em"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(name: "em"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "embed"): NodeListOf<HTMLEmbedElement>;
     getElementsByTagName(name: "feblend"): NodeListOf<SVGFEBlendElement>;
     getElementsByTagName(name: "fecolormatrix"): NodeListOf<SVGFEColorMatrixElement>;
@@ -8242,22 +9297,22 @@ interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelec
     getElementsByTagName(name: "hgroup"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "hr"): NodeListOf<HTMLHRElement>;
     getElementsByTagName(name: "html"): NodeListOf<HTMLHtmlElement>;
-    getElementsByTagName(name: "i"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(name: "i"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "iframe"): NodeListOf<HTMLIFrameElement>;
     getElementsByTagName(name: "image"): NodeListOf<SVGImageElement>;
     getElementsByTagName(name: "img"): NodeListOf<HTMLImageElement>;
     getElementsByTagName(name: "input"): NodeListOf<HTMLInputElement>;
     getElementsByTagName(name: "ins"): NodeListOf<HTMLModElement>;
-    getElementsByTagName(name: "isindex"): NodeListOf<HTMLIsIndexElement>;
-    getElementsByTagName(name: "kbd"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(name: "keygen"): NodeListOf<HTMLBlockElement>;
+    getElementsByTagName(name: "isindex"): NodeListOf<HTMLUnknownElement>;
+    getElementsByTagName(name: "kbd"): NodeListOf<HTMLElement>;
+    getElementsByTagName(name: "keygen"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "label"): NodeListOf<HTMLLabelElement>;
     getElementsByTagName(name: "legend"): NodeListOf<HTMLLegendElement>;
     getElementsByTagName(name: "li"): NodeListOf<HTMLLIElement>;
     getElementsByTagName(name: "line"): NodeListOf<SVGLineElement>;
     getElementsByTagName(name: "lineargradient"): NodeListOf<SVGLinearGradientElement>;
     getElementsByTagName(name: "link"): NodeListOf<HTMLLinkElement>;
-    getElementsByTagName(name: "listing"): NodeListOf<HTMLBlockElement>;
+    getElementsByTagName(name: "listing"): NodeListOf<HTMLPreElement>;
     getElementsByTagName(name: "map"): NodeListOf<HTMLMapElement>;
     getElementsByTagName(name: "mark"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "marker"): NodeListOf<SVGMarkerElement>;
@@ -8266,9 +9321,10 @@ interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelec
     getElementsByTagName(name: "menu"): NodeListOf<HTMLMenuElement>;
     getElementsByTagName(name: "meta"): NodeListOf<HTMLMetaElement>;
     getElementsByTagName(name: "metadata"): NodeListOf<SVGMetadataElement>;
+    getElementsByTagName(name: "meter"): NodeListOf<HTMLMeterElement>;
     getElementsByTagName(name: "nav"): NodeListOf<HTMLElement>;
-    getElementsByTagName(name: "nextid"): NodeListOf<HTMLNextIdElement>;
-    getElementsByTagName(name: "nobr"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(name: "nextid"): NodeListOf<HTMLUnknownElement>;
+    getElementsByTagName(name: "nobr"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "noframes"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "noscript"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "object"): NodeListOf<HTMLObjectElement>;
@@ -8279,7 +9335,8 @@ interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelec
     getElementsByTagName(name: "param"): NodeListOf<HTMLParamElement>;
     getElementsByTagName(name: "path"): NodeListOf<SVGPathElement>;
     getElementsByTagName(name: "pattern"): NodeListOf<SVGPatternElement>;
-    getElementsByTagName(name: "plaintext"): NodeListOf<HTMLBlockElement>;
+    getElementsByTagName(name: "picture"): NodeListOf<HTMLPictureElement>;
+    getElementsByTagName(name: "plaintext"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "polygon"): NodeListOf<SVGPolygonElement>;
     getElementsByTagName(name: "polyline"): NodeListOf<SVGPolylineElement>;
     getElementsByTagName(name: "pre"): NodeListOf<HTMLPreElement>;
@@ -8287,28 +9344,29 @@ interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelec
     getElementsByTagName(name: "q"): NodeListOf<HTMLQuoteElement>;
     getElementsByTagName(name: "radialgradient"): NodeListOf<SVGRadialGradientElement>;
     getElementsByTagName(name: "rect"): NodeListOf<SVGRectElement>;
-    getElementsByTagName(name: "rt"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(name: "ruby"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(name: "s"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(name: "samp"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(name: "rt"): NodeListOf<HTMLElement>;
+    getElementsByTagName(name: "ruby"): NodeListOf<HTMLElement>;
+    getElementsByTagName(name: "s"): NodeListOf<HTMLElement>;
+    getElementsByTagName(name: "samp"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "script"): NodeListOf<HTMLScriptElement>;
     getElementsByTagName(name: "section"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "select"): NodeListOf<HTMLSelectElement>;
-    getElementsByTagName(name: "small"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(name: "small"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "source"): NodeListOf<HTMLSourceElement>;
     getElementsByTagName(name: "span"): NodeListOf<HTMLSpanElement>;
     getElementsByTagName(name: "stop"): NodeListOf<SVGStopElement>;
-    getElementsByTagName(name: "strike"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(name: "strong"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(name: "strike"): NodeListOf<HTMLElement>;
+    getElementsByTagName(name: "strong"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "style"): NodeListOf<HTMLStyleElement>;
-    getElementsByTagName(name: "sub"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(name: "sup"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(name: "sub"): NodeListOf<HTMLElement>;
+    getElementsByTagName(name: "sup"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "svg"): NodeListOf<SVGSVGElement>;
     getElementsByTagName(name: "switch"): NodeListOf<SVGSwitchElement>;
     getElementsByTagName(name: "symbol"): NodeListOf<SVGSymbolElement>;
     getElementsByTagName(name: "table"): NodeListOf<HTMLTableElement>;
     getElementsByTagName(name: "tbody"): NodeListOf<HTMLTableSectionElement>;
     getElementsByTagName(name: "td"): NodeListOf<HTMLTableDataCellElement>;
+    getElementsByTagName(name: "template"): NodeListOf<HTMLTemplateElement>;
     getElementsByTagName(name: "text"): NodeListOf<SVGTextElement>;
     getElementsByTagName(name: "textpath"): NodeListOf<SVGTextPathElement>;
     getElementsByTagName(name: "textarea"): NodeListOf<HTMLTextAreaElement>;
@@ -8319,18 +9377,20 @@ interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelec
     getElementsByTagName(name: "tr"): NodeListOf<HTMLTableRowElement>;
     getElementsByTagName(name: "track"): NodeListOf<HTMLTrackElement>;
     getElementsByTagName(name: "tspan"): NodeListOf<SVGTSpanElement>;
-    getElementsByTagName(name: "tt"): NodeListOf<HTMLPhraseElement>;
-    getElementsByTagName(name: "u"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(name: "tt"): NodeListOf<HTMLElement>;
+    getElementsByTagName(name: "u"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "ul"): NodeListOf<HTMLUListElement>;
     getElementsByTagName(name: "use"): NodeListOf<SVGUseElement>;
-    getElementsByTagName(name: "var"): NodeListOf<HTMLPhraseElement>;
+    getElementsByTagName(name: "var"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "video"): NodeListOf<HTMLVideoElement>;
     getElementsByTagName(name: "view"): NodeListOf<SVGViewElement>;
     getElementsByTagName(name: "wbr"): NodeListOf<HTMLElement>;
     getElementsByTagName(name: "x-ms-webview"): NodeListOf<MSHTMLWebViewElement>;
-    getElementsByTagName(name: "xmp"): NodeListOf<HTMLBlockElement>;
+    getElementsByTagName(name: "xmp"): NodeListOf<HTMLPreElement>;
     getElementsByTagName(name: string): NodeListOf<Element>;
-    getElementsByTagNameNS(namespaceURI: string, localName: string): NodeListOf<Element>;
+    getElementsByTagNameNS(namespaceURI: "http://www.w3.org/1999/xhtml", localName: string): HTMLCollectionOf<HTMLElement>;
+    getElementsByTagNameNS(namespaceURI: "http://www.w3.org/2000/svg", localName: string): HTMLCollectionOf<SVGElement>;
+    getElementsByTagNameNS(namespaceURI: string, localName: string): HTMLCollectionOf<Element>;
     hasAttribute(name: string): boolean;
     hasAttributeNS(namespaceURI: string, localName: string): boolean;
     msGetRegionContent(): MSRangeCollection;
@@ -8355,42 +9415,53 @@ interface Element extends Node, GlobalEventHandlers, ElementTraversal, NodeSelec
     webkitRequestFullscreen(): void;
     getElementsByClassName(classNames: string): NodeListOf<Element>;
     matches(selector: string): boolean;
-    addEventListener(type: "MSGestureChange", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureDoubleTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureEnd", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureHold", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGotPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSInertiaStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSLostPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerCancel", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerDown", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerEnter", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerLeave", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerMove", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOut", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOver", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerUp", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ariarequest", listener: (ev: AriaRequestEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "command", listener: (ev: CommandEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "gotpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "lostpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointercancel", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerdown", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerenter", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerleave", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointermove", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerout", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerover", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerup", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchcancel", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchend", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchmove", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchstart", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenerror", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "wheel", listener: (ev: WheelEvent) => any, useCapture?: boolean): void;
+    closest(selector: string): Element | null;
+    scrollIntoView(arg?: boolean | ScrollIntoViewOptions): void;
+    scroll(options?: ScrollToOptions): void;
+    scroll(x: number, y: number): void;
+    scrollTo(options?: ScrollToOptions): void;
+    scrollTo(x: number, y: number): void;
+    scrollBy(options?: ScrollToOptions): void;
+    scrollBy(x: number, y: number): void;
+    insertAdjacentElement(position: string, insertedElement: Element): Element | null;
+    insertAdjacentHTML(where: string, html: string): void;
+    insertAdjacentText(where: string, text: string): void;
+    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -8400,11 +9471,11 @@ declare var Element: {
 }
 
 interface ErrorEvent extends Event {
-    colno: number;
-    error: any;
-    filename: string;
-    lineno: number;
-    message: string;
+    readonly colno: number;
+    readonly error: any;
+    readonly filename: string;
+    readonly lineno: number;
+    readonly message: string;
     initErrorEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, messageArg: string, filenameArg: string, linenoArg: number): void;
 }
 
@@ -8414,39 +9485,39 @@ declare var ErrorEvent: {
 }
 
 interface Event {
-    bubbles: boolean;
+    readonly bubbles: boolean;
     cancelBubble: boolean;
-    cancelable: boolean;
-    currentTarget: EventTarget;
-    defaultPrevented: boolean;
-    eventPhase: number;
-    isTrusted: boolean;
+    readonly cancelable: boolean;
+    readonly currentTarget: EventTarget;
+    readonly defaultPrevented: boolean;
+    readonly eventPhase: number;
+    readonly isTrusted: boolean;
     returnValue: boolean;
-    srcElement: Element;
-    target: EventTarget;
-    timeStamp: number;
-    type: string;
+    readonly srcElement: Element | null;
+    readonly target: EventTarget;
+    readonly timeStamp: number;
+    readonly type: string;
     initEvent(eventTypeArg: string, canBubbleArg: boolean, cancelableArg: boolean): void;
     preventDefault(): void;
     stopImmediatePropagation(): void;
     stopPropagation(): void;
-    AT_TARGET: number;
-    BUBBLING_PHASE: number;
-    CAPTURING_PHASE: number;
+    readonly AT_TARGET: number;
+    readonly BUBBLING_PHASE: number;
+    readonly CAPTURING_PHASE: number;
 }
 
 declare var Event: {
     prototype: Event;
     new(type: string, eventInitDict?: EventInit): Event;
-    AT_TARGET: number;
-    BUBBLING_PHASE: number;
-    CAPTURING_PHASE: number;
+    readonly AT_TARGET: number;
+    readonly BUBBLING_PHASE: number;
+    readonly CAPTURING_PHASE: number;
 }
 
 interface EventTarget {
-    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+    addEventListener(type: string, listener?: EventListenerOrEventListenerObject, useCapture?: boolean): void;
     dispatchEvent(evt: Event): boolean;
-    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+    removeEventListener(type: string, listener?: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var EventTarget: {
@@ -8463,8 +9534,9 @@ declare var External: {
 }
 
 interface File extends Blob {
-    lastModifiedDate: any;
-    name: string;
+    readonly lastModifiedDate: any;
+    readonly name: string;
+    readonly webkitRelativePath: string;
 }
 
 declare var File: {
@@ -8473,7 +9545,7 @@ declare var File: {
 }
 
 interface FileList {
-    length: number;
+    readonly length: number;
     item(index: number): File;
     [index: number]: File;
 }
@@ -8484,7 +9556,7 @@ declare var FileList: {
 }
 
 interface FileReader extends EventTarget, MSBaseReader {
-    error: DOMError;
+    readonly error: DOMError;
     readAsArrayBuffer(blob: Blob): void;
     readAsBinaryString(blob: Blob): void;
     readAsDataURL(blob: Blob): void;
@@ -8498,7 +9570,7 @@ declare var FileReader: {
 }
 
 interface FocusEvent extends UIEvent {
-    relatedTarget: EventTarget;
+    readonly relatedTarget: EventTarget;
     initFocusEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, viewArg: Window, detailArg: number, relatedTargetArg: EventTarget): void;
 }
 
@@ -8517,7 +9589,7 @@ declare var FormData: {
 }
 
 interface GainNode extends AudioNode {
-    gain: AudioParam;
+    readonly gain: AudioParam;
 }
 
 declare var GainNode: {
@@ -8526,13 +9598,13 @@ declare var GainNode: {
 }
 
 interface Gamepad {
-    axes: number[];
-    buttons: GamepadButton[];
-    connected: boolean;
-    id: string;
-    index: number;
-    mapping: string;
-    timestamp: number;
+    readonly axes: number[];
+    readonly buttons: GamepadButton[];
+    readonly connected: boolean;
+    readonly id: string;
+    readonly index: number;
+    readonly mapping: string;
+    readonly timestamp: number;
 }
 
 declare var Gamepad: {
@@ -8541,8 +9613,8 @@ declare var Gamepad: {
 }
 
 interface GamepadButton {
-    pressed: boolean;
-    value: number;
+    readonly pressed: boolean;
+    readonly value: number;
 }
 
 declare var GamepadButton: {
@@ -8551,7 +9623,7 @@ declare var GamepadButton: {
 }
 
 interface GamepadEvent extends Event {
-    gamepad: Gamepad;
+    readonly gamepad: Gamepad;
 }
 
 declare var GamepadEvent: {
@@ -8589,6 +9661,7 @@ interface HTMLAnchorElement extends HTMLElement {
       * Sets or retrieves the coordinates of the object.
       */
     coords: string;
+    download: string;
     /**
       * Contains the anchor portion of the URL including the hash sign (#).
       */
@@ -8609,12 +9682,12 @@ interface HTMLAnchorElement extends HTMLElement {
       * Sets or retrieves the language code of the object.
       */
     hreflang: string;
-    mimeType: string;
+    readonly mimeType: string;
     /**
       * Sets or retrieves the shape of the object.
       */
     name: string;
-    nameProp: string;
+    readonly nameProp: string;
     /**
       * Contains the pathname of the URL.
       */
@@ -8627,7 +9700,7 @@ interface HTMLAnchorElement extends HTMLElement {
       * Contains the protocol of the URL.
       */
     protocol: string;
-    protocolLong: string;
+    readonly protocolLong: string;
     /**
       * Sets or retrieves the relationship between the object and the destination of the link.
       */
@@ -8669,7 +9742,7 @@ interface HTMLAppletElement extends HTMLElement {
     /**
       * Retrieves a string of the URL where the object tag can be found. This is often the href of the document that the object is in, or the value set by a base element.
       */
-    BaseHref: string;
+    readonly BaseHref: string;
     align: string;
     /**
       * Sets or retrieves a text alternative to the graphic.
@@ -8696,7 +9769,7 @@ interface HTMLAppletElement extends HTMLElement {
     /**
       * Address of a pointer to the document this page or frame contains. If there is no document, then null will be returned.
       */
-    contentDocument: Document;
+    readonly contentDocument: Document;
     /**
       * Sets or retrieves the URL that references the data of the object.
       */
@@ -8705,7 +9778,7 @@ interface HTMLAppletElement extends HTMLElement {
       * Sets or retrieves a character string that can be used to implement your own declare functionality for the object.
       */
     declare: boolean;
-    form: HTMLFormElement;
+    readonly form: HTMLFormElement;
     /**
       * Sets or retrieves the height of the object.
       */
@@ -8715,7 +9788,7 @@ interface HTMLAppletElement extends HTMLElement {
       * Sets or retrieves the shape of the object.
       */
     name: string;
-    object: string;
+    object: string | null;
     /**
       * Sets or retrieves a message to be displayed while an object is loading.
       */
@@ -8746,6 +9819,7 @@ interface HTMLAreaElement extends HTMLElement {
       * Sets or retrieves the coordinates of the object.
       */
     coords: string;
+    download: string;
     /**
       * Sets or retrieves the subsection of the href property that follows the number sign (#).
       */
@@ -8871,23 +9945,6 @@ declare var HTMLBaseFontElement: {
     new(): HTMLBaseFontElement;
 }
 
-interface HTMLBlockElement extends HTMLElement {
-    /**
-      * Sets or retrieves reference information about the object.
-      */
-    cite: string;
-    clear: string;
-    /**
-      * Sets or retrieves the width of the object.
-      */
-    width: number;
-}
-
-declare var HTMLBlockElement: {
-    prototype: HTMLBlockElement;
-    new(): HTMLBlockElement;
-}
-
 interface HTMLBodyElement extends HTMLElement {
     aLink: any;
     background: string;
@@ -8895,147 +9952,147 @@ interface HTMLBodyElement extends HTMLElement {
     bgProperties: string;
     link: any;
     noWrap: boolean;
-    onafterprint: (ev: Event) => any;
-    onbeforeprint: (ev: Event) => any;
-    onbeforeunload: (ev: BeforeUnloadEvent) => any;
-    onblur: (ev: FocusEvent) => any;
-    onerror: (ev: Event) => any;
-    onfocus: (ev: FocusEvent) => any;
-    onhashchange: (ev: HashChangeEvent) => any;
-    onload: (ev: Event) => any;
-    onmessage: (ev: MessageEvent) => any;
-    onoffline: (ev: Event) => any;
-    ononline: (ev: Event) => any;
-    onorientationchange: (ev: Event) => any;
-    onpagehide: (ev: PageTransitionEvent) => any;
-    onpageshow: (ev: PageTransitionEvent) => any;
-    onpopstate: (ev: PopStateEvent) => any;
-    onresize: (ev: UIEvent) => any;
-    onstorage: (ev: StorageEvent) => any;
-    onunload: (ev: Event) => any;
+    onafterprint: (this: this, ev: Event) => any;
+    onbeforeprint: (this: this, ev: Event) => any;
+    onbeforeunload: (this: this, ev: BeforeUnloadEvent) => any;
+    onblur: (this: this, ev: FocusEvent) => any;
+    onerror: (this: this, ev: ErrorEvent) => any;
+    onfocus: (this: this, ev: FocusEvent) => any;
+    onhashchange: (this: this, ev: HashChangeEvent) => any;
+    onload: (this: this, ev: Event) => any;
+    onmessage: (this: this, ev: MessageEvent) => any;
+    onoffline: (this: this, ev: Event) => any;
+    ononline: (this: this, ev: Event) => any;
+    onorientationchange: (this: this, ev: Event) => any;
+    onpagehide: (this: this, ev: PageTransitionEvent) => any;
+    onpageshow: (this: this, ev: PageTransitionEvent) => any;
+    onpopstate: (this: this, ev: PopStateEvent) => any;
+    onresize: (this: this, ev: UIEvent) => any;
+    onstorage: (this: this, ev: StorageEvent) => any;
+    onunload: (this: this, ev: Event) => any;
     text: any;
     vLink: any;
-    createTextRange(): TextRange;
-    addEventListener(type: "MSContentZoom", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureChange", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureDoubleTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureEnd", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureHold", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGotPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSInertiaStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSLostPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSManipulationStateChanged", listener: (ev: MSManipulationEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerCancel", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerDown", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerEnter", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerLeave", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerMove", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOut", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOver", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerUp", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "abort", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "activate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "afterprint", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "ariarequest", listener: (ev: AriaRequestEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforecopy", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforecut", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforedeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforepaste", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforeprint", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforeunload", listener: (ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "blur", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "blur", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplay", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplaythrough", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "change", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "click", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "command", listener: (ev: CommandEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "contextmenu", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "copy", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "cuechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "cut", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dblclick", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "deactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drag", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragend", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragenter", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragleave", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragover", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragstart", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drop", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "durationchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "emptied", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "ended", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "focus", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "focus", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "gotpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "hashchange", listener: (ev: HashChangeEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "input", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "keydown", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keypress", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keyup", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadeddata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadedmetadata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "lostpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "message", listener: (ev: MessageEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousedown", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseenter", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseleave", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousemove", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseout", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseover", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseup", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousewheel", listener: (ev: MouseWheelEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "offline", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "online", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "orientationchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "pagehide", listener: (ev: PageTransitionEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pageshow", listener: (ev: PageTransitionEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "paste", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pause", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "play", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "playing", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointercancel", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerdown", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerenter", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerleave", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointermove", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerout", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerover", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerup", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "popstate", listener: (ev: PopStateEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "progress", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ratechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "reset", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "resize", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "scroll", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeked", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeking", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "select", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "selectstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "stalled", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "storage", listener: (ev: StorageEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "submit", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "suspend", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "timeupdate", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchcancel", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchend", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchmove", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchstart", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "unload", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "volumechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "waiting", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenerror", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "wheel", listener: (ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "afterprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforeprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforeunload", listener: (this: this, ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "hashchange", listener: (this: this, ev: HashChangeEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "offline", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "online", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "orientationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "pagehide", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pageshow", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "popstate", listener: (this: this, ev: PopStateEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "resize", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "storage", listener: (this: this, ev: StorageEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "unload", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -9053,7 +10110,7 @@ interface HTMLButtonElement extends HTMLElement {
     /**
       * Retrieves a reference to the form that the object is embedded in.
       */
-    form: HTMLFormElement;
+    readonly form: HTMLFormElement;
     /**
       * Overrides the action attribute (where the data on a form is sent) on the parent form element.
       */
@@ -9086,11 +10143,11 @@ interface HTMLButtonElement extends HTMLElement {
     /**
       * Returns the error message that would be displayed if the user submits the form, or an empty string if no error message. It also triggers the standard error message, such as "this is a required field". The result is that the user sees validation messages without actually submitting.
       */
-    validationMessage: string;
+    readonly validationMessage: string;
     /**
       * Returns a  ValidityState object that represents the validity states of an element.
       */
-    validity: ValidityState;
+    readonly validity: ValidityState;
     /** 
       * Sets or retrieves the default or selected value of the control.
       */
@@ -9098,16 +10155,12 @@ interface HTMLButtonElement extends HTMLElement {
     /**
       * Returns whether an element will successfully validate based on forms validation rules and constraints.
       */
-    willValidate: boolean;
+    readonly willValidate: boolean;
     /**
       * Returns whether a form will validate when it is submitted, without having to submit it.
       */
     checkValidity(): boolean;
     /**
-      * Creates a TextRange object for the element.
-      */
-    createTextRange(): TextRange;
-    /**
       * Sets a custom error message that is displayed when a form is submitted.
       * @param error Sets a custom error message that is displayed when a form is submitted.
       */
@@ -9132,9 +10185,9 @@ interface HTMLCanvasElement extends HTMLElement {
       * Returns an object that provides methods and properties for drawing and manipulating images and graphics on a canvas element in a document. A context object includes information about colors, line widths, fonts, and other graphic parameters that can be drawn on a canvas.
       * @param contextId The identifier (ID) of the type of canvas to create. Internet Explorer 9 and Internet Explorer 10 support only a 2-D context using canvas.getContext("2d"); IE11 Preview also supports 3-D or WebGL context using canvas.getContext("experimental-webgl");
       */
-    getContext(contextId: "2d"): CanvasRenderingContext2D;
-    getContext(contextId: "experimental-webgl"): WebGLRenderingContext;
-    getContext(contextId: string, ...args: any[]): CanvasRenderingContext2D | WebGLRenderingContext;
+    getContext(contextId: "2d", contextAttributes?: Canvas2DContextAttributes): CanvasRenderingContext2D | null;
+    getContext(contextId: "webgl" | "experimental-webgl", contextAttributes?: WebGLContextAttributes): WebGLRenderingContext | null;
+    getContext(contextId: string, contextAttributes?: {}): CanvasRenderingContext2D | WebGLRenderingContext | null;
     /**
       * Returns a blob object encoded as a Portable Network Graphics (PNG) format from a canvas image or drawing.
       */
@@ -9144,6 +10197,7 @@ interface HTMLCanvasElement extends HTMLElement {
       * @param type The standard MIME type for the image format to return. If you do not specify this parameter, the default value is a PNG format image.
       */
     toDataURL(type?: string, ...args: any[]): string;
+    toBlob(callback: (result: Blob | null) => void, type?: string, ...arguments: any[]): void;
 }
 
 declare var HTMLCanvasElement: {
@@ -9155,11 +10209,11 @@ interface HTMLCollection {
     /**
       * Sets or retrieves the number of objects in a collection.
       */
-    length: number;
+    readonly length: number;
     /**
       * Retrieves an object from various collections.
       */
-    item(nameOrIndex?: any, optionalIndex?: any): Element;
+    item(index: number): Element;
     /**
       * Retrieves a select object or an object from an options collection.
       */
@@ -9172,18 +10226,6 @@ declare var HTMLCollection: {
     new(): HTMLCollection;
 }
 
-interface HTMLDDElement extends HTMLElement {
-    /**
-      * Sets or retrieves whether the browser automatically performs wordwrap.
-      */
-    noWrap: boolean;
-}
-
-declare var HTMLDDElement: {
-    prototype: HTMLDDElement;
-    new(): HTMLDDElement;
-}
-
 interface HTMLDListElement extends HTMLElement {
     compact: boolean;
 }
@@ -9193,20 +10235,8 @@ declare var HTMLDListElement: {
     new(): HTMLDListElement;
 }
 
-interface HTMLDTElement extends HTMLElement {
-    /**
-      * Sets or retrieves whether the browser automatically performs wordwrap.
-      */
-    noWrap: boolean;
-}
-
-declare var HTMLDTElement: {
-    prototype: HTMLDTElement;
-    new(): HTMLDTElement;
-}
-
 interface HTMLDataListElement extends HTMLElement {
-    options: HTMLCollection;
+    options: HTMLCollectionOf<HTMLOptionElement>;
 }
 
 declare var HTMLDataListElement: {
@@ -9249,206 +10279,204 @@ declare var HTMLDocument: {
 
 interface HTMLElement extends Element {
     accessKey: string;
-    children: HTMLCollection;
+    readonly children: HTMLCollection;
     contentEditable: string;
-    dataset: DOMStringMap;
+    readonly dataset: DOMStringMap;
     dir: string;
     draggable: boolean;
     hidden: boolean;
     hideFocus: boolean;
     innerHTML: string;
     innerText: string;
-    isContentEditable: boolean;
+    readonly isContentEditable: boolean;
     lang: string;
-    offsetHeight: number;
-    offsetLeft: number;
-    offsetParent: Element;
-    offsetTop: number;
-    offsetWidth: number;
-    onabort: (ev: Event) => any;
-    onactivate: (ev: UIEvent) => any;
-    onbeforeactivate: (ev: UIEvent) => any;
-    onbeforecopy: (ev: DragEvent) => any;
-    onbeforecut: (ev: DragEvent) => any;
-    onbeforedeactivate: (ev: UIEvent) => any;
-    onbeforepaste: (ev: DragEvent) => any;
-    onblur: (ev: FocusEvent) => any;
-    oncanplay: (ev: Event) => any;
-    oncanplaythrough: (ev: Event) => any;
-    onchange: (ev: Event) => any;
-    onclick: (ev: MouseEvent) => any;
-    oncontextmenu: (ev: PointerEvent) => any;
-    oncopy: (ev: DragEvent) => any;
-    oncuechange: (ev: Event) => any;
-    oncut: (ev: DragEvent) => any;
-    ondblclick: (ev: MouseEvent) => any;
-    ondeactivate: (ev: UIEvent) => any;
-    ondrag: (ev: DragEvent) => any;
-    ondragend: (ev: DragEvent) => any;
-    ondragenter: (ev: DragEvent) => any;
-    ondragleave: (ev: DragEvent) => any;
-    ondragover: (ev: DragEvent) => any;
-    ondragstart: (ev: DragEvent) => any;
-    ondrop: (ev: DragEvent) => any;
-    ondurationchange: (ev: Event) => any;
-    onemptied: (ev: Event) => any;
-    onended: (ev: Event) => any;
-    onerror: (ev: Event) => any;
-    onfocus: (ev: FocusEvent) => any;
-    oninput: (ev: Event) => any;
-    onkeydown: (ev: KeyboardEvent) => any;
-    onkeypress: (ev: KeyboardEvent) => any;
-    onkeyup: (ev: KeyboardEvent) => any;
-    onload: (ev: Event) => any;
-    onloadeddata: (ev: Event) => any;
-    onloadedmetadata: (ev: Event) => any;
-    onloadstart: (ev: Event) => any;
-    onmousedown: (ev: MouseEvent) => any;
-    onmouseenter: (ev: MouseEvent) => any;
-    onmouseleave: (ev: MouseEvent) => any;
-    onmousemove: (ev: MouseEvent) => any;
-    onmouseout: (ev: MouseEvent) => any;
-    onmouseover: (ev: MouseEvent) => any;
-    onmouseup: (ev: MouseEvent) => any;
-    onmousewheel: (ev: MouseWheelEvent) => any;
-    onmscontentzoom: (ev: UIEvent) => any;
-    onmsmanipulationstatechanged: (ev: MSManipulationEvent) => any;
-    onpaste: (ev: DragEvent) => any;
-    onpause: (ev: Event) => any;
-    onplay: (ev: Event) => any;
-    onplaying: (ev: Event) => any;
-    onprogress: (ev: ProgressEvent) => any;
-    onratechange: (ev: Event) => any;
-    onreset: (ev: Event) => any;
-    onscroll: (ev: UIEvent) => any;
-    onseeked: (ev: Event) => any;
-    onseeking: (ev: Event) => any;
-    onselect: (ev: UIEvent) => any;
-    onselectstart: (ev: Event) => any;
-    onstalled: (ev: Event) => any;
-    onsubmit: (ev: Event) => any;
-    onsuspend: (ev: Event) => any;
-    ontimeupdate: (ev: Event) => any;
-    onvolumechange: (ev: Event) => any;
-    onwaiting: (ev: Event) => any;
+    readonly offsetHeight: number;
+    readonly offsetLeft: number;
+    readonly offsetParent: Element;
+    readonly offsetTop: number;
+    readonly offsetWidth: number;
+    onabort: (this: this, ev: UIEvent) => any;
+    onactivate: (this: this, ev: UIEvent) => any;
+    onbeforeactivate: (this: this, ev: UIEvent) => any;
+    onbeforecopy: (this: this, ev: ClipboardEvent) => any;
+    onbeforecut: (this: this, ev: ClipboardEvent) => any;
+    onbeforedeactivate: (this: this, ev: UIEvent) => any;
+    onbeforepaste: (this: this, ev: ClipboardEvent) => any;
+    onblur: (this: this, ev: FocusEvent) => any;
+    oncanplay: (this: this, ev: Event) => any;
+    oncanplaythrough: (this: this, ev: Event) => any;
+    onchange: (this: this, ev: Event) => any;
+    onclick: (this: this, ev: MouseEvent) => any;
+    oncontextmenu: (this: this, ev: PointerEvent) => any;
+    oncopy: (this: this, ev: ClipboardEvent) => any;
+    oncuechange: (this: this, ev: Event) => any;
+    oncut: (this: this, ev: ClipboardEvent) => any;
+    ondblclick: (this: this, ev: MouseEvent) => any;
+    ondeactivate: (this: this, ev: UIEvent) => any;
+    ondrag: (this: this, ev: DragEvent) => any;
+    ondragend: (this: this, ev: DragEvent) => any;
+    ondragenter: (this: this, ev: DragEvent) => any;
+    ondragleave: (this: this, ev: DragEvent) => any;
+    ondragover: (this: this, ev: DragEvent) => any;
+    ondragstart: (this: this, ev: DragEvent) => any;
+    ondrop: (this: this, ev: DragEvent) => any;
+    ondurationchange: (this: this, ev: Event) => any;
+    onemptied: (this: this, ev: Event) => any;
+    onended: (this: this, ev: MediaStreamErrorEvent) => any;
+    onerror: (this: this, ev: ErrorEvent) => any;
+    onfocus: (this: this, ev: FocusEvent) => any;
+    oninput: (this: this, ev: Event) => any;
+    oninvalid: (this: this, ev: Event) => any;
+    onkeydown: (this: this, ev: KeyboardEvent) => any;
+    onkeypress: (this: this, ev: KeyboardEvent) => any;
+    onkeyup: (this: this, ev: KeyboardEvent) => any;
+    onload: (this: this, ev: Event) => any;
+    onloadeddata: (this: this, ev: Event) => any;
+    onloadedmetadata: (this: this, ev: Event) => any;
+    onloadstart: (this: this, ev: Event) => any;
+    onmousedown: (this: this, ev: MouseEvent) => any;
+    onmouseenter: (this: this, ev: MouseEvent) => any;
+    onmouseleave: (this: this, ev: MouseEvent) => any;
+    onmousemove: (this: this, ev: MouseEvent) => any;
+    onmouseout: (this: this, ev: MouseEvent) => any;
+    onmouseover: (this: this, ev: MouseEvent) => any;
+    onmouseup: (this: this, ev: MouseEvent) => any;
+    onmousewheel: (this: this, ev: WheelEvent) => any;
+    onmscontentzoom: (this: this, ev: UIEvent) => any;
+    onmsmanipulationstatechanged: (this: this, ev: MSManipulationEvent) => any;
+    onpaste: (this: this, ev: ClipboardEvent) => any;
+    onpause: (this: this, ev: Event) => any;
+    onplay: (this: this, ev: Event) => any;
+    onplaying: (this: this, ev: Event) => any;
+    onprogress: (this: this, ev: ProgressEvent) => any;
+    onratechange: (this: this, ev: Event) => any;
+    onreset: (this: this, ev: Event) => any;
+    onscroll: (this: this, ev: UIEvent) => any;
+    onseeked: (this: this, ev: Event) => any;
+    onseeking: (this: this, ev: Event) => any;
+    onselect: (this: this, ev: UIEvent) => any;
+    onselectstart: (this: this, ev: Event) => any;
+    onstalled: (this: this, ev: Event) => any;
+    onsubmit: (this: this, ev: Event) => any;
+    onsuspend: (this: this, ev: Event) => any;
+    ontimeupdate: (this: this, ev: Event) => any;
+    onvolumechange: (this: this, ev: Event) => any;
+    onwaiting: (this: this, ev: Event) => any;
     outerHTML: string;
     outerText: string;
     spellcheck: boolean;
-    style: CSSStyleDeclaration;
+    readonly style: CSSStyleDeclaration;
     tabIndex: number;
     title: string;
     blur(): void;
     click(): void;
     dragDrop(): boolean;
     focus(): void;
-    insertAdjacentElement(position: string, insertedElement: Element): Element;
-    insertAdjacentHTML(where: string, html: string): void;
-    insertAdjacentText(where: string, text: string): void;
     msGetInputContext(): MSInputMethodContext;
-    scrollIntoView(top?: boolean): void;
     setActive(): void;
-    addEventListener(type: "MSContentZoom", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureChange", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureDoubleTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureEnd", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureHold", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGotPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSInertiaStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSLostPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSManipulationStateChanged", listener: (ev: MSManipulationEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerCancel", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerDown", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerEnter", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerLeave", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerMove", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOut", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOver", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerUp", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "abort", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "activate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ariarequest", listener: (ev: AriaRequestEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforecopy", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforecut", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforedeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforepaste", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "blur", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplay", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplaythrough", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "change", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "click", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "command", listener: (ev: CommandEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "contextmenu", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "copy", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "cuechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "cut", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dblclick", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "deactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drag", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragend", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragenter", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragleave", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragover", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragstart", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drop", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "durationchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "emptied", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "ended", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "focus", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "gotpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "input", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "keydown", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keypress", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keyup", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadeddata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadedmetadata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "lostpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousedown", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseenter", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseleave", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousemove", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseout", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseover", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseup", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousewheel", listener: (ev: MouseWheelEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "paste", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pause", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "play", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "playing", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointercancel", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerdown", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerenter", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerleave", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointermove", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerout", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerover", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerup", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "progress", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ratechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "reset", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "scroll", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeked", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeking", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "select", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "selectstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "stalled", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "submit", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "suspend", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "timeupdate", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchcancel", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchend", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchmove", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchstart", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "volumechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "waiting", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenerror", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "wheel", listener: (ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -9478,7 +10506,7 @@ interface HTMLEmbedElement extends HTMLElement, GetSVGDocument {
     /**
       * Gets the source associated with the media element for use by the PlayToManager.
       */
-    msPlayToSource: any;
+    readonly msPlayToSource: any;
     /**
       * Sets or retrieves the name of the object.
       */
@@ -9486,12 +10514,12 @@ interface HTMLEmbedElement extends HTMLElement, GetSVGDocument {
     /**
       * Retrieves the palette used for the embedded document.
       */
-    palette: string;
+    readonly palette: string;
     /**
       * Retrieves the URL of the plug-in used to view an embedded document.
       */
-    pluginspage: string;
-    readyState: string;
+    readonly pluginspage: string;
+    readonly readyState: string;
     /**
       * Sets or retrieves a URL to be loaded by the object.
       */
@@ -9521,19 +10549,19 @@ interface HTMLFieldSetElement extends HTMLElement {
     /**
       * Retrieves a reference to the form that the object is embedded in.
       */
-    form: HTMLFormElement;
+    readonly form: HTMLFormElement;
     /**
       * Returns the error message that would be displayed if the user submits the form, or an empty string if no error message. It also triggers the standard error message, such as "this is a required field". The result is that the user sees validation messages without actually submitting.
       */
-    validationMessage: string;
+    readonly validationMessage: string;
     /**
       * Returns a  ValidityState object that represents the validity states of an element.
       */
-    validity: ValidityState;
+    readonly validity: ValidityState;
     /**
       * Returns whether an element will successfully validate based on forms validation rules and constraints.
       */
-    willValidate: boolean;
+    readonly willValidate: boolean;
     /**
       * Returns whether a form will validate when it is submitted, without having to submit it.
       */
@@ -9579,7 +10607,7 @@ interface HTMLFormElement extends HTMLElement {
     /**
       * Retrieves a collection, in source order, of all controls in a given form.
       */
-    elements: HTMLCollection;
+    readonly elements: HTMLCollection;
     /**
       * Sets or retrieves the MIME encoding for the form.
       */
@@ -9591,7 +10619,7 @@ interface HTMLFormElement extends HTMLElement {
     /**
       * Sets or retrieves the number of objects in a collection.
       */
-    length: number;
+    readonly length: number;
     /**
       * Sets or retrieves how to send the form data to the server.
       */
@@ -9650,11 +10678,11 @@ interface HTMLFrameElement extends HTMLElement, GetSVGDocument {
     /**
       * Retrieves the document object of the page or frame.
       */
-    contentDocument: Document;
+    readonly contentDocument: Document;
     /**
       * Retrieves the object of the specified.
       */
-    contentWindow: Window;
+    readonly contentWindow: Window;
     /**
       * Sets or retrieves whether to display a border for the frame.
       */
@@ -9690,16 +10718,12 @@ interface HTMLFrameElement extends HTMLElement, GetSVGDocument {
     /**
       * Raised when the object has been completely received from the server.
       */
-    onload: (ev: Event) => any;
+    onload: (this: this, ev: Event) => any;
     /**
       * Sets or retrieves whether the frame can be scrolled.
       */
     scrolling: string;
     /**
-      * Sets the value indicating whether the source file of a frame or iframe has specific security restrictions applied.
-      */
-    security: any;
-    /**
       * Sets or retrieves a URL to be loaded by the object.
       */
     src: string;
@@ -9707,109 +10731,110 @@ interface HTMLFrameElement extends HTMLElement, GetSVGDocument {
       * Sets or retrieves the width of the object.
       */
     width: string | number;
-    addEventListener(type: "MSContentZoom", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureChange", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureDoubleTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureEnd", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureHold", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGotPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSInertiaStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSLostPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSManipulationStateChanged", listener: (ev: MSManipulationEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerCancel", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerDown", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerEnter", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerLeave", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerMove", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOut", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOver", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerUp", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "abort", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "activate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ariarequest", listener: (ev: AriaRequestEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforecopy", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforecut", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforedeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforepaste", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "blur", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplay", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplaythrough", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "change", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "click", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "command", listener: (ev: CommandEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "contextmenu", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "copy", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "cuechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "cut", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dblclick", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "deactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drag", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragend", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragenter", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragleave", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragover", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragstart", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drop", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "durationchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "emptied", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "ended", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "focus", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "gotpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "input", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "keydown", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keypress", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keyup", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadeddata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadedmetadata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "lostpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousedown", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseenter", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseleave", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousemove", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseout", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseover", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseup", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousewheel", listener: (ev: MouseWheelEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "paste", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pause", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "play", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "playing", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointercancel", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerdown", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerenter", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerleave", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointermove", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerout", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerover", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerup", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "progress", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ratechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "reset", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "scroll", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeked", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeking", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "select", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "selectstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "stalled", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "submit", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "suspend", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "timeupdate", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchcancel", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchend", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchmove", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchstart", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "volumechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "waiting", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenerror", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "wheel", listener: (ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -9837,151 +10862,152 @@ interface HTMLFrameSetElement extends HTMLElement {
       */
     frameSpacing: any;
     name: string;
-    onafterprint: (ev: Event) => any;
-    onbeforeprint: (ev: Event) => any;
-    onbeforeunload: (ev: BeforeUnloadEvent) => any;
+    onafterprint: (this: this, ev: Event) => any;
+    onbeforeprint: (this: this, ev: Event) => any;
+    onbeforeunload: (this: this, ev: BeforeUnloadEvent) => any;
     /**
       * Fires when the object loses the input focus.
       */
-    onblur: (ev: FocusEvent) => any;
-    onerror: (ev: Event) => any;
+    onblur: (this: this, ev: FocusEvent) => any;
+    onerror: (this: this, ev: ErrorEvent) => any;
     /**
       * Fires when the object receives focus.
       */
-    onfocus: (ev: FocusEvent) => any;
-    onhashchange: (ev: HashChangeEvent) => any;
-    onload: (ev: Event) => any;
-    onmessage: (ev: MessageEvent) => any;
-    onoffline: (ev: Event) => any;
-    ononline: (ev: Event) => any;
-    onorientationchange: (ev: Event) => any;
-    onpagehide: (ev: PageTransitionEvent) => any;
-    onpageshow: (ev: PageTransitionEvent) => any;
-    onresize: (ev: UIEvent) => any;
-    onstorage: (ev: StorageEvent) => any;
-    onunload: (ev: Event) => any;
+    onfocus: (this: this, ev: FocusEvent) => any;
+    onhashchange: (this: this, ev: HashChangeEvent) => any;
+    onload: (this: this, ev: Event) => any;
+    onmessage: (this: this, ev: MessageEvent) => any;
+    onoffline: (this: this, ev: Event) => any;
+    ononline: (this: this, ev: Event) => any;
+    onorientationchange: (this: this, ev: Event) => any;
+    onpagehide: (this: this, ev: PageTransitionEvent) => any;
+    onpageshow: (this: this, ev: PageTransitionEvent) => any;
+    onresize: (this: this, ev: UIEvent) => any;
+    onstorage: (this: this, ev: StorageEvent) => any;
+    onunload: (this: this, ev: Event) => any;
     /**
       * Sets or retrieves the frame heights of the object.
       */
     rows: string;
-    addEventListener(type: "MSContentZoom", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureChange", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureDoubleTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureEnd", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureHold", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGotPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSInertiaStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSLostPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSManipulationStateChanged", listener: (ev: MSManipulationEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerCancel", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerDown", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerEnter", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerLeave", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerMove", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOut", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOver", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerUp", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "abort", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "activate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ariarequest", listener: (ev: AriaRequestEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforecopy", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforecut", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforedeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforepaste", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforeprint", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforeunload", listener: (ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "blur", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "blur", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplay", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplaythrough", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "change", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "click", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "command", listener: (ev: CommandEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "contextmenu", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "copy", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "cuechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "cut", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dblclick", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "deactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drag", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragend", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragenter", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragleave", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragover", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragstart", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drop", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "durationchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "emptied", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "ended", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "focus", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "focus", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "gotpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "hashchange", listener: (ev: HashChangeEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "input", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "keydown", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keypress", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keyup", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadeddata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadedmetadata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "lostpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "message", listener: (ev: MessageEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousedown", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseenter", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseleave", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousemove", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseout", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseover", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseup", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousewheel", listener: (ev: MouseWheelEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "offline", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "online", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "orientationchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "pagehide", listener: (ev: PageTransitionEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pageshow", listener: (ev: PageTransitionEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "paste", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pause", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "play", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "playing", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointercancel", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerdown", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerenter", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerleave", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointermove", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerout", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerover", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerup", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "progress", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ratechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "reset", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "resize", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "scroll", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeked", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeking", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "select", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "selectstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "stalled", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "storage", listener: (ev: StorageEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "submit", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "suspend", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "timeupdate", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchcancel", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchend", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchmove", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchstart", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "unload", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "volumechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "waiting", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenerror", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "wheel", listener: (ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforeprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforeunload", listener: (this: this, ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "hashchange", listener: (this: this, ev: HashChangeEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "offline", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "online", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "orientationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "pagehide", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pageshow", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "resize", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "storage", listener: (this: this, ev: StorageEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "unload", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -10025,7 +11051,6 @@ interface HTMLHeadingElement extends HTMLElement {
       * Sets or retrieves a value that indicates the table alignment.
       */
     align: string;
-    clear: string;
 }
 
 declare var HTMLHeadingElement: {
@@ -10058,11 +11083,11 @@ interface HTMLIFrameElement extends HTMLElement, GetSVGDocument {
     /**
       * Retrieves the document object of the page or frame.
       */
-    contentDocument: Document;
+    readonly contentDocument: Document;
     /**
       * Retrieves the object of the specified.
       */
-    contentWindow: Window;
+    readonly contentWindow: Window;
     /**
       * Sets or retrieves whether to display a border for the frame.
       */
@@ -10102,17 +11127,13 @@ interface HTMLIFrameElement extends HTMLElement, GetSVGDocument {
     /**
       * Raised when the object has been completely received from the server.
       */
-    onload: (ev: Event) => any;
-    sandbox: DOMSettableTokenList;
+    onload: (this: this, ev: Event) => any;
+    readonly sandbox: DOMSettableTokenList;
     /**
       * Sets or retrieves whether the frame can be scrolled.
       */
     scrolling: string;
     /**
-      * Sets the value indicating whether the source file of a frame or iframe has specific security restrictions applied.
-      */
-    security: any;
-    /**
       * Sets or retrieves a URL to be loaded by the object.
       */
     src: string;
@@ -10124,109 +11145,110 @@ interface HTMLIFrameElement extends HTMLElement, GetSVGDocument {
       * Sets or retrieves the width of the object.
       */
     width: string;
-    addEventListener(type: "MSContentZoom", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureChange", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureDoubleTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureEnd", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureHold", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGotPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSInertiaStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSLostPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSManipulationStateChanged", listener: (ev: MSManipulationEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerCancel", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerDown", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerEnter", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerLeave", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerMove", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOut", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOver", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerUp", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "abort", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "activate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ariarequest", listener: (ev: AriaRequestEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforecopy", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforecut", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforedeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforepaste", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "blur", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplay", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplaythrough", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "change", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "click", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "command", listener: (ev: CommandEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "contextmenu", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "copy", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "cuechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "cut", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dblclick", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "deactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drag", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragend", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragenter", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragleave", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragover", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragstart", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drop", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "durationchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "emptied", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "ended", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "focus", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "gotpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "input", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "keydown", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keypress", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keyup", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadeddata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadedmetadata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "lostpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousedown", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseenter", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseleave", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousemove", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseout", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseover", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseup", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousewheel", listener: (ev: MouseWheelEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "paste", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pause", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "play", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "playing", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointercancel", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerdown", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerenter", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerleave", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointermove", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerout", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerover", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerup", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "progress", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ratechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "reset", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "scroll", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeked", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeking", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "select", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "selectstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "stalled", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "submit", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "suspend", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "timeupdate", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchcancel", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchend", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchmove", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchstart", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "volumechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "waiting", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenerror", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "wheel", listener: (ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -10251,9 +11273,9 @@ interface HTMLImageElement extends HTMLElement {
     /**
       * Retrieves whether the object is fully loaded.
       */
-    complete: boolean;
+    readonly complete: boolean;
     crossOrigin: string;
-    currentSrc: string;
+    readonly currentSrc: string;
     /**
       * Sets or retrieves the height of the object.
       */
@@ -10270,6 +11292,7 @@ interface HTMLImageElement extends HTMLElement {
       * Sets or retrieves a Uniform Resource Identifier (URI) to a long description of the object.
       */
     longDesc: string;
+    lowsrc: string;
     /**
       * Gets or sets whether the DLNA PlayTo device is available.
       */
@@ -10282,7 +11305,7 @@ interface HTMLImageElement extends HTMLElement {
     /**
       * Gets the source associated with the media element for use by the PlayToManager.
       */
-    msPlayToSource: any;
+    readonly msPlayToSource: any;
     /**
       * Sets or retrieves the name of the object.
       */
@@ -10290,11 +11313,12 @@ interface HTMLImageElement extends HTMLElement {
     /**
       * The original height of the image resource before sizing.
       */
-    naturalHeight: number;
+    readonly naturalHeight: number;
     /**
       * The original width of the image resource before sizing.
       */
-    naturalWidth: number;
+    readonly naturalWidth: number;
+    sizes: string;
     /**
       * The address or URL of the a media resource that is to be considered.
       */
@@ -10312,8 +11336,8 @@ interface HTMLImageElement extends HTMLElement {
       * Sets or retrieves the width of the object.
       */
     width: number;
-    x: number;
-    y: number;
+    readonly x: number;
+    readonly y: number;
     msGetAsCastingSource(): any;
 }
 
@@ -10355,7 +11379,7 @@ interface HTMLInputElement extends HTMLElement {
     /**
       * Retrieves whether the object is fully loaded.
       */
-    complete: boolean;
+    readonly complete: boolean;
     /**
       * Sets or retrieves the state of the check box or radio button.
       */
@@ -10368,11 +11392,11 @@ interface HTMLInputElement extends HTMLElement {
     /**
       * Returns a FileList object on a file type input object.
       */
-    files: FileList;
+    readonly files: FileList | null;
     /**
       * Retrieves a reference to the form that the object is embedded in. 
       */
-    form: HTMLFormElement;
+    readonly form: HTMLFormElement;
     /**
       * Overrides the action attribute (where the data on a form is sent) on the parent form element.
       */
@@ -10405,7 +11429,7 @@ interface HTMLInputElement extends HTMLElement {
     /**
       * Specifies the ID of a pre-defined datalist of options for an input element.
       */
-    list: HTMLElement;
+    readonly list: HTMLElement;
     /**
       * Defines the maximum acceptable value for an input element with type="number".When used with the min and step attributes, lets you control the range and increment (such as only even numbers) that the user can enter into an input field.
       */
@@ -10439,6 +11463,7 @@ interface HTMLInputElement extends HTMLElement {
       * When present, marks an element that can't be submitted without a value.
       */
     required: boolean;
+    selectionDirection: string;
     /**
       * Gets or sets the end position or offset of a text selection.
       */
@@ -10468,11 +11493,11 @@ interface HTMLInputElement extends HTMLElement {
     /**
       * Returns the error message that would be displayed if the user submits the form, or an empty string if no error message. It also triggers the standard error message, such as "this is a required field". The result is that the user sees validation messages without actually submitting.
       */
-    validationMessage: string;
+    readonly validationMessage: string;
     /**
       * Returns a  ValidityState object that represents the validity states of an element.
       */
-    validity: ValidityState;
+    readonly validity: ValidityState;
     /**
       * Returns the value of the data at the cursor's current position.
       */
@@ -10486,6 +11511,7 @@ interface HTMLInputElement extends HTMLElement {
       * Sets or retrieves the vertical margin for the object.
       */
     vspace: number;
+    webkitdirectory: boolean;
     /**
       * Sets or retrieves the width of the object.
       */
@@ -10493,16 +11519,13 @@ interface HTMLInputElement extends HTMLElement {
     /**
       * Returns whether an element will successfully validate based on forms validation rules and constraints.
       */
-    willValidate: boolean;
+    readonly willValidate: boolean;
+    minLength: number;
     /**
       * Returns whether a form will validate when it is submitted, without having to submit it.
       */
     checkValidity(): boolean;
     /**
-      * Creates a TextRange object for the element.
-      */
-    createTextRange(): TextRange;
-    /**
       * Makes the selection equal to the current object.
       */
     select(): void;
@@ -10516,7 +11539,7 @@ interface HTMLInputElement extends HTMLElement {
       * @param start The offset into the text field for the start of the selection.
       * @param end The offset into the text field for the end of the selection.
       */
-    setSelectionRange(start: number, end: number): void;
+    setSelectionRange(start?: number, end?: number, direction?: string): void;
     /**
       * Decrements a range input control's value by the value given by the Step attribute. If the optional parameter is used, it will decrement the input control's step value multiplied by the parameter's value.
       * @param n Value to decrement the value by.
@@ -10534,23 +11557,6 @@ declare var HTMLInputElement: {
     new(): HTMLInputElement;
 }
 
-interface HTMLIsIndexElement extends HTMLElement {
-    /**
-      * Sets or retrieves the URL to which the form content is sent for processing.
-      */
-    action: string;
-    /**
-      * Retrieves a reference to the form that the object is embedded in. 
-      */
-    form: HTMLFormElement;
-    prompt: string;
-}
-
-declare var HTMLIsIndexElement: {
-    prototype: HTMLIsIndexElement;
-    new(): HTMLIsIndexElement;
-}
-
 interface HTMLLIElement extends HTMLElement {
     type: string;
     /**
@@ -10568,7 +11574,7 @@ interface HTMLLabelElement extends HTMLElement {
     /**
       * Retrieves a reference to the form that the object is embedded in.
       */
-    form: HTMLFormElement;
+    readonly form: HTMLFormElement;
     /**
       * Sets or retrieves the object to which the given label object is assigned.
       */
@@ -10588,7 +11594,7 @@ interface HTMLLegendElement extends HTMLElement {
     /**
       * Retrieves a reference to the form that the object is embedded in.
       */
-    form: HTMLFormElement;
+    readonly form: HTMLFormElement;
 }
 
 declare var HTMLLegendElement: {
@@ -10630,6 +11636,8 @@ interface HTMLLinkElement extends HTMLElement, LinkStyle {
       * Sets or retrieves the MIME type of the object.
       */
     type: string;
+    import?: Document;
+    integrity: string;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -10642,7 +11650,7 @@ interface HTMLMapElement extends HTMLElement {
     /**
       * Retrieves a collection of the area objects defined for the given map object.
       */
-    areas: HTMLAreasCollection;
+    readonly areas: HTMLAreasCollection;
     /**
       * Sets or retrieves the name of the object.
       */
@@ -10661,9 +11669,9 @@ interface HTMLMarqueeElement extends HTMLElement {
     height: string;
     hspace: number;
     loop: number;
-    onbounce: (ev: Event) => any;
-    onfinish: (ev: Event) => any;
-    onstart: (ev: Event) => any;
+    onbounce: (this: this, ev: Event) => any;
+    onfinish: (this: this, ev: Event) => any;
+    onstart: (this: this, ev: Event) => any;
     scrollAmount: number;
     scrollDelay: number;
     trueSpeed: boolean;
@@ -10671,111 +11679,112 @@ interface HTMLMarqueeElement extends HTMLElement {
     width: string;
     start(): void;
     stop(): void;
-    addEventListener(type: "MSContentZoom", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureChange", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureDoubleTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureEnd", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureHold", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGotPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSInertiaStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSLostPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSManipulationStateChanged", listener: (ev: MSManipulationEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerCancel", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerDown", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerEnter", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerLeave", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerMove", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOut", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOver", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerUp", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "abort", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "activate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ariarequest", listener: (ev: AriaRequestEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforecopy", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforecut", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforedeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforepaste", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "blur", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "bounce", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplay", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplaythrough", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "change", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "click", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "command", listener: (ev: CommandEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "contextmenu", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "copy", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "cuechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "cut", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dblclick", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "deactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drag", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragend", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragenter", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragleave", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragover", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragstart", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drop", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "durationchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "emptied", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "ended", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "finish", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "focus", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "gotpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "input", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "keydown", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keypress", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keyup", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadeddata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadedmetadata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "lostpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousedown", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseenter", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseleave", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousemove", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseout", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseover", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseup", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousewheel", listener: (ev: MouseWheelEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "paste", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pause", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "play", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "playing", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointercancel", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerdown", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerenter", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerleave", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointermove", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerout", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerover", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerup", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "progress", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ratechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "reset", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "scroll", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeked", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeking", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "select", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "selectstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "stalled", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "start", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "submit", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "suspend", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "timeupdate", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchcancel", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchend", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchmove", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchstart", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "volumechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "waiting", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenerror", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "wheel", listener: (ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "bounce", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "finish", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "start", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -10788,7 +11797,7 @@ interface HTMLMediaElement extends HTMLElement {
     /**
       * Returns an AudioTrackList object with the audio tracks for a given video element.
       */
-    audioTracks: AudioTrackList;
+    readonly audioTracks: AudioTrackList;
     /**
       * Gets or sets a value that indicates whether to start playing the media automatically.
       */
@@ -10796,15 +11805,16 @@ interface HTMLMediaElement extends HTMLElement {
     /**
       * Gets a collection of buffered time ranges.
       */
-    buffered: TimeRanges;
+    readonly buffered: TimeRanges;
     /**
       * Gets or sets a flag that indicates whether the client provides a set of controls for the media (in case the developer does not include controls for the player).
       */
     controls: boolean;
+    crossOrigin: string;
     /**
       * Gets the address or URL of the current media resource that is selected by IHTMLMediaElement.
       */
-    currentSrc: string;
+    readonly currentSrc: string;
     /**
       * Gets or sets the current playback position, in seconds.
       */
@@ -10817,19 +11827,20 @@ interface HTMLMediaElement extends HTMLElement {
     /**
       * Returns the duration in seconds of the current media resource. A NaN value is returned if duration is not available, or Infinity if the media resource is streaming.
       */
-    duration: number;
+    readonly duration: number;
     /**
       * Gets information about whether the playback has ended or not.
       */
-    ended: boolean;
+    readonly ended: boolean;
     /**
       * Returns an object representing the current error state of the audio or video element.
       */
-    error: MediaError;
+    readonly error: MediaError;
     /**
       * Gets or sets a flag to specify whether playback should restart after it completes.
       */
     loop: boolean;
+    readonly mediaKeys: MediaKeys | null;
     /**
       * Specifies the purpose of the audio or video media, such as background audio or alerts.
       */
@@ -10838,11 +11849,11 @@ interface HTMLMediaElement extends HTMLElement {
       * Specifies the output device id that the audio will be sent to.
       */
     msAudioDeviceType: string;
-    msGraphicsTrustStatus: MSGraphicsTrust;
+    readonly msGraphicsTrustStatus: MSGraphicsTrust;
     /**
       * Gets the MSMediaKeys object, which is used for decrypting media data, that is associated with this media element.
       */
-    msKeys: MSMediaKeys;
+    readonly msKeys: MSMediaKeys;
     /**
       * Gets or sets whether the DLNA PlayTo device is available.
       */
@@ -10858,7 +11869,7 @@ interface HTMLMediaElement extends HTMLElement {
     /**
       * Gets the source associated with the media element for use by the PlayToManager.
       */
-    msPlayToSource: any;
+    readonly msPlayToSource: any;
     /**
       * Specifies whether or not to enable low-latency playback on the media element.
       */
@@ -10870,12 +11881,13 @@ interface HTMLMediaElement extends HTMLElement {
     /**
       * Gets the current network activity for the element.
       */
-    networkState: number;
-    onmsneedkey: (ev: MSMediaKeyNeededEvent) => any;
+    readonly networkState: number;
+    onencrypted: (this: this, ev: MediaEncryptedEvent) => any;
+    onmsneedkey: (this: this, ev: MSMediaKeyNeededEvent) => any;
     /**
       * Gets a flag that specifies whether playback is paused.
       */
-    paused: boolean;
+    readonly paused: boolean;
     /**
       * Gets or sets the current rate of speed for the media resource to play. This speed is expressed as a multiple of the normal speed of the media resource.
       */
@@ -10883,7 +11895,7 @@ interface HTMLMediaElement extends HTMLElement {
     /**
       * Gets TimeRanges for the current media resource that has been played.
       */
-    played: TimeRanges;
+    readonly played: TimeRanges;
     /**
       * Gets or sets the current playback position, in seconds.
       */
@@ -10892,17 +11904,18 @@ interface HTMLMediaElement extends HTMLElement {
     /**
       * Returns a TimeRanges object that represents the ranges of the current media resource that can be seeked.
       */
-    seekable: TimeRanges;
+    readonly seekable: TimeRanges;
     /**
       * Gets a flag that indicates whether the the client is currently moving to a new playback position in the media resource.
       */
-    seeking: boolean;
+    readonly seeking: boolean;
     /**
       * The address or URL of the a media resource that is to be considered.
       */
     src: string;
-    textTracks: TextTrackList;
-    videoTracks: VideoTrackList;
+    srcObject: MediaStream | null;
+    readonly textTracks: TextTrackList;
+    readonly videoTracks: VideoTrackList;
     /**
       * Gets or sets the volume level for audio portions of the media element.
       */
@@ -10913,7 +11926,7 @@ interface HTMLMediaElement extends HTMLElement {
       */
     canPlayType(type: string): string;
     /**
-      * Fires immediately after the client loads the object.
+      * Resets the audio or video object and loads a new media resource.
       */
     load(): void;
     /**
@@ -10938,133 +11951,136 @@ interface HTMLMediaElement extends HTMLElement {
       * Loads and starts playback of a media resource.
       */
     play(): void;
-    HAVE_CURRENT_DATA: number;
-    HAVE_ENOUGH_DATA: number;
-    HAVE_FUTURE_DATA: number;
-    HAVE_METADATA: number;
-    HAVE_NOTHING: number;
-    NETWORK_EMPTY: number;
-    NETWORK_IDLE: number;
-    NETWORK_LOADING: number;
-    NETWORK_NO_SOURCE: number;
-    addEventListener(type: "MSContentZoom", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureChange", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureDoubleTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureEnd", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureHold", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGotPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSInertiaStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSLostPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSManipulationStateChanged", listener: (ev: MSManipulationEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerCancel", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerDown", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerEnter", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerLeave", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerMove", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOut", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOver", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerUp", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "abort", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "activate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ariarequest", listener: (ev: AriaRequestEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforecopy", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforecut", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforedeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforepaste", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "blur", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplay", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplaythrough", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "change", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "click", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "command", listener: (ev: CommandEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "contextmenu", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "copy", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "cuechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "cut", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dblclick", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "deactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drag", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragend", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragenter", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragleave", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragover", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragstart", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drop", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "durationchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "emptied", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "ended", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "focus", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "gotpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "input", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "keydown", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keypress", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keyup", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadeddata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadedmetadata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "lostpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousedown", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseenter", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseleave", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousemove", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseout", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseover", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseup", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousewheel", listener: (ev: MouseWheelEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "msneedkey", listener: (ev: MSMediaKeyNeededEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "paste", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pause", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "play", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "playing", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointercancel", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerdown", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerenter", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerleave", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointermove", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerout", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerover", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerup", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "progress", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ratechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "reset", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "scroll", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeked", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeking", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "select", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "selectstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "stalled", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "submit", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "suspend", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "timeupdate", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchcancel", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchend", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchmove", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchstart", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "volumechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "waiting", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenerror", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "wheel", listener: (ev: WheelEvent) => any, useCapture?: boolean): void;
+    setMediaKeys(mediaKeys: MediaKeys | null): PromiseLike<void>;
+    readonly HAVE_CURRENT_DATA: number;
+    readonly HAVE_ENOUGH_DATA: number;
+    readonly HAVE_FUTURE_DATA: number;
+    readonly HAVE_METADATA: number;
+    readonly HAVE_NOTHING: number;
+    readonly NETWORK_EMPTY: number;
+    readonly NETWORK_IDLE: number;
+    readonly NETWORK_LOADING: number;
+    readonly NETWORK_NO_SOURCE: number;
+    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "encrypted", listener: (this: this, ev: MediaEncryptedEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "msneedkey", listener: (this: this, ev: MSMediaKeyNeededEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var HTMLMediaElement: {
     prototype: HTMLMediaElement;
     new(): HTMLMediaElement;
-    HAVE_CURRENT_DATA: number;
-    HAVE_ENOUGH_DATA: number;
-    HAVE_FUTURE_DATA: number;
-    HAVE_METADATA: number;
-    HAVE_NOTHING: number;
-    NETWORK_EMPTY: number;
-    NETWORK_IDLE: number;
-    NETWORK_LOADING: number;
-    NETWORK_NO_SOURCE: number;
+    readonly HAVE_CURRENT_DATA: number;
+    readonly HAVE_ENOUGH_DATA: number;
+    readonly HAVE_FUTURE_DATA: number;
+    readonly HAVE_METADATA: number;
+    readonly HAVE_NOTHING: number;
+    readonly NETWORK_EMPTY: number;
+    readonly NETWORK_IDLE: number;
+    readonly NETWORK_LOADING: number;
+    readonly NETWORK_NO_SOURCE: number;
 }
 
 interface HTMLMenuElement extends HTMLElement {
@@ -11109,6 +12125,20 @@ declare var HTMLMetaElement: {
     new(): HTMLMetaElement;
 }
 
+interface HTMLMeterElement extends HTMLElement {
+    high: number;
+    low: number;
+    max: number;
+    min: number;
+    optimum: number;
+    value: number;
+}
+
+declare var HTMLMeterElement: {
+    prototype: HTMLMeterElement;
+    new(): HTMLMeterElement;
+}
+
 interface HTMLModElement extends HTMLElement {
     /**
       * Sets or retrieves reference information about the object.
@@ -11125,15 +12155,6 @@ declare var HTMLModElement: {
     new(): HTMLModElement;
 }
 
-interface HTMLNextIdElement extends HTMLElement {
-    n: string;
-}
-
-declare var HTMLNextIdElement: {
-    prototype: HTMLNextIdElement;
-    new(): HTMLNextIdElement;
-}
-
 interface HTMLOListElement extends HTMLElement {
     compact: boolean;
     /**
@@ -11152,7 +12173,7 @@ interface HTMLObjectElement extends HTMLElement, GetSVGDocument {
     /**
       * Retrieves a string of the URL where the object tag can be found. This is often the href of the document that the object is in, or the value set by a base element.
       */
-    BaseHref: string;
+    readonly BaseHref: string;
     align: string;
     /**
       * Sets or retrieves a text alternative to the graphic.
@@ -11182,7 +12203,7 @@ interface HTMLObjectElement extends HTMLElement, GetSVGDocument {
     /**
       * Retrieves the document object of the page or frame.
       */
-    contentDocument: Document;
+    readonly contentDocument: Document;
     /**
       * Sets or retrieves the URL that references the data of the object.
       */
@@ -11191,7 +12212,7 @@ interface HTMLObjectElement extends HTMLElement, GetSVGDocument {
     /**
       * Retrieves a reference to the form that the object is embedded in.
       */
-    form: HTMLFormElement;
+    readonly form: HTMLFormElement;
     /**
       * Sets or retrieves the height of the object.
       */
@@ -11212,7 +12233,7 @@ interface HTMLObjectElement extends HTMLElement, GetSVGDocument {
     /**
       * Gets the source associated with the media element for use by the PlayToManager.
       */
-    msPlayToSource: any;
+    readonly msPlayToSource: any;
     /**
       * Sets or retrieves the name of the object.
       */
@@ -11220,8 +12241,8 @@ interface HTMLObjectElement extends HTMLElement, GetSVGDocument {
     /**
       * Retrieves the contained object.
       */
-    object: any;
-    readyState: number;
+    readonly object: any;
+    readonly readyState: number;
     /**
       * Sets or retrieves a message to be displayed while an object is loading.
       */
@@ -11237,11 +12258,11 @@ interface HTMLObjectElement extends HTMLElement, GetSVGDocument {
     /**
       * Returns the error message that would be displayed if the user submits the form, or an empty string if no error message. It also triggers the standard error message, such as "this is a required field". The result is that the user sees validation messages without actually submitting.
       */
-    validationMessage: string;
+    readonly validationMessage: string;
     /**
       * Returns a  ValidityState object that represents the validity states of an element.
       */
-    validity: ValidityState;
+    readonly validity: ValidityState;
     vspace: number;
     /**
       * Sets or retrieves the width of the object.
@@ -11250,7 +12271,7 @@ interface HTMLObjectElement extends HTMLElement, GetSVGDocument {
     /**
       * Returns whether an element will successfully validate based on forms validation rules and constraints.
       */
-    willValidate: boolean;
+    readonly willValidate: boolean;
     /**
       * Returns whether a form will validate when it is submitted, without having to submit it.
       */
@@ -11277,11 +12298,11 @@ interface HTMLOptGroupElement extends HTMLElement {
     /**
       * Retrieves a reference to the form that the object is embedded in.
       */
-    form: HTMLFormElement;
+    readonly form: HTMLFormElement;
     /**
       * Sets or retrieves the ordinal position of an option in a list box.
       */
-    index: number;
+    readonly index: number;
     /**
       * Sets or retrieves a value that you can use to implement your own label functionality for the object.
       */
@@ -11293,7 +12314,7 @@ interface HTMLOptGroupElement extends HTMLElement {
     /**
       * Sets or retrieves the text string specified by the option tag.
       */
-    text: string;
+    readonly text: string;
     /**
       * Sets or retrieves the value which is returned to the server when the form control is submitted.
       */
@@ -11314,11 +12335,11 @@ interface HTMLOptionElement extends HTMLElement {
     /**
       * Retrieves a reference to the form that the object is embedded in.
       */
-    form: HTMLFormElement;
+    readonly form: HTMLFormElement;
     /**
       * Sets or retrieves the ordinal position of an option in a list box.
       */
-    index: number;
+    readonly index: number;
     /**
       * Sets or retrieves a value that you can use to implement your own label functionality for the object.
       */
@@ -11343,6 +12364,18 @@ declare var HTMLOptionElement: {
     create(): HTMLOptionElement;
 }
 
+interface HTMLOptionsCollection extends HTMLCollectionOf<HTMLOptionElement> {
+    length: number;
+    selectedIndex: number;
+    add(element: HTMLOptionElement | HTMLOptGroupElement, before?: HTMLElement | number): void;
+    remove(index: number): void;
+}
+
+declare var HTMLOptionsCollection: {
+    prototype: HTMLOptionsCollection;
+    new(): HTMLOptionsCollection;
+}
+
 interface HTMLParagraphElement extends HTMLElement {
     /**
       * Sets or retrieves how the object is aligned with adjacent text. 
@@ -11380,29 +12413,16 @@ declare var HTMLParamElement: {
     new(): HTMLParamElement;
 }
 
-interface HTMLPhraseElement extends HTMLElement {
-    /**
-      * Sets or retrieves reference information about the object.
-      */
-    cite: string;
-    /**
-      * Sets or retrieves the date and time of a modification to the object.
-      */
-    dateTime: string;
+interface HTMLPictureElement extends HTMLElement {
 }
 
-declare var HTMLPhraseElement: {
-    prototype: HTMLPhraseElement;
-    new(): HTMLPhraseElement;
+declare var HTMLPictureElement: {
+    prototype: HTMLPictureElement;
+    new(): HTMLPictureElement;
 }
 
 interface HTMLPreElement extends HTMLElement {
     /**
-      * Indicates a citation by rendering text in italic type.
-      */
-    cite: string;
-    clear: string;
-    /**
       * Sets or gets a value that you can use to implement your own width functionality for the object.
       */
     width: number;
@@ -11417,7 +12437,7 @@ interface HTMLProgressElement extends HTMLElement {
     /**
       * Retrieves a reference to the form that the object is embedded in.
       */
-    form: HTMLFormElement;
+    readonly form: HTMLFormElement;
     /**
       * Defines the maximum, or "done" value for a progress element.
       */
@@ -11425,7 +12445,7 @@ interface HTMLProgressElement extends HTMLElement {
     /**
       * Returns the quotient of value/max when the value attribute is set (determinate progress bar), or -1 when the value attribute is missing (indeterminate progress bar).
       */
-    position: number;
+    readonly position: number;
     /**
       * Sets or gets the current value of a progress element. The value must be a non-negative number between 0 and the max value.
       */
@@ -11442,10 +12462,6 @@ interface HTMLQuoteElement extends HTMLElement {
       * Sets or retrieves reference information about the object.
       */
     cite: string;
-    /**
-      * Sets or retrieves the date and time of a modification to the object.
-      */
-    dateTime: string;
 }
 
 declare var HTMLQuoteElement: {
@@ -11483,6 +12499,7 @@ interface HTMLScriptElement extends HTMLElement {
       * Sets or retrieves the MIME type for the associated scripting engine.
       */
     type: string;
+    integrity: string;
 }
 
 declare var HTMLScriptElement: {
@@ -11499,7 +12516,7 @@ interface HTMLSelectElement extends HTMLElement {
     /**
       * Retrieves a reference to the form that the object is embedded in. 
       */
-    form: HTMLFormElement;
+    readonly form: HTMLFormElement;
     /**
       * Sets or retrieves the number of objects in a collection.
       */
@@ -11512,7 +12529,7 @@ interface HTMLSelectElement extends HTMLElement {
       * Sets or retrieves the name of the object.
       */
     name: string;
-    options: HTMLCollection;
+    readonly options: HTMLOptionsCollection;
     /**
       * When present, marks an element that can't be submitted without a value.
       */
@@ -11521,6 +12538,7 @@ interface HTMLSelectElement extends HTMLElement {
       * Sets or retrieves the index of the selected option in a select object.
       */
     selectedIndex: number;
+    selectedOptions: HTMLCollectionOf<HTMLOptionElement>;
     /**
       * Sets or retrieves the number of rows in the list box. 
       */
@@ -11528,15 +12546,15 @@ interface HTMLSelectElement extends HTMLElement {
     /**
       * Retrieves the type of select control based on the value of the MULTIPLE attribute.
       */
-    type: string;
+    readonly type: string;
     /**
       * Returns the error message that would be displayed if the user submits the form, or an empty string if no error message. It also triggers the standard error message, such as "this is a required field". The result is that the user sees validation messages without actually submitting.
       */
-    validationMessage: string;
+    readonly validationMessage: string;
     /**
       * Returns a  ValidityState object that represents the validity states of an element.
       */
-    validity: ValidityState;
+    readonly validity: ValidityState;
     /**
       * Sets or retrieves the value which is returned to the server when the form control is submitted.
       */
@@ -11544,8 +12562,7 @@ interface HTMLSelectElement extends HTMLElement {
     /**
       * Returns whether an element will successfully validate based on forms validation rules and constraints.
       */
-    willValidate: boolean;
-    selectedOptions: HTMLCollection;
+    readonly willValidate: boolean;
     /**
       * Adds an element to the areas, controlRange, or options collection.
       * @param element Variant of type Number that specifies the index position in the collection where the element is placed. If no value is given, the method places the element at the end of the collection.
@@ -11591,10 +12608,12 @@ interface HTMLSourceElement extends HTMLElement {
      */
     media: string;
     msKeySystem: string;
+    sizes: string;
     /**
       * The address or URL of the a media resource that is to be considered.
       */
     src: string;
+    srcset: string;
     /**
      * Gets or sets the MIME type of a media resource.
      */
@@ -11615,6 +12634,7 @@ declare var HTMLSpanElement: {
 }
 
 interface HTMLStyleElement extends HTMLElement, LinkStyle {
+    disabled: boolean;
     /**
       * Sets or retrieves the media type.
       */
@@ -11664,7 +12684,7 @@ interface HTMLTableCellElement extends HTMLElement, HTMLTableAlignment {
     /**
       * Retrieves the position of the object in the cells collection of a row.
       */
-    cellIndex: number;
+    readonly cellIndex: number;
     /**
       * Sets or retrieves the number columns in the table that the object should span.
       */
@@ -11771,7 +12791,7 @@ interface HTMLTableElement extends HTMLElement {
     /**
       * Sets or retrieves the number of horizontal rows contained in the object.
       */
-    rows: HTMLCollection;
+    rows: HTMLCollectionOf<HTMLTableRowElement>;
     /**
       * Sets or retrieves which dividing lines (inner borders) are displayed.
       */
@@ -11783,7 +12803,7 @@ interface HTMLTableElement extends HTMLElement {
     /**
       * Retrieves a collection of all tBody objects in the table. Objects in this collection are in source order.
       */
-    tBodies: HTMLCollection;
+    tBodies: HTMLCollectionOf<HTMLTableSectionElement>;
     /**
       * Retrieves the tFoot object of the table.
       */
@@ -11862,7 +12882,7 @@ interface HTMLTableRowElement extends HTMLElement, HTMLTableAlignment {
     /**
       * Retrieves a collection of all cells in the table row.
       */
-    cells: HTMLCollection;
+    cells: HTMLCollectionOf<HTMLTableDataCellElement | HTMLTableHeaderCellElement>;
     /**
       * Sets or retrieves the height of the object.
       */
@@ -11870,11 +12890,11 @@ interface HTMLTableRowElement extends HTMLElement, HTMLTableAlignment {
     /**
       * Retrieves the position of the object in the rows collection for the table.
       */
-    rowIndex: number;
+    readonly rowIndex: number;
     /**
       * Retrieves the position of the object in the collection.
       */
-    sectionRowIndex: number;
+    readonly sectionRowIndex: number;
     /**
       * Removes the specified cell from the table row, as well as from the cells collection.
       * @param index Number that specifies the zero-based position of the cell to remove from the table row. If no value is provided, the last cell in the cells collection is deleted.
@@ -11884,7 +12904,7 @@ interface HTMLTableRowElement extends HTMLElement, HTMLTableAlignment {
       * Creates a new cell in the table row, and adds the cell to the cells collection.
       * @param index Number that specifies where to insert the cell in the tr. The default value is -1, which appends the new cell to the end of the cells collection.
       */
-    insertCell(index?: number): HTMLTableCellElement;
+    insertCell(index?: number): HTMLTableDataCellElement;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -11901,7 +12921,7 @@ interface HTMLTableSectionElement extends HTMLElement, HTMLTableAlignment {
     /**
       * Sets or retrieves the number of horizontal rows contained in the object.
       */
-    rows: HTMLCollection;
+    rows: HTMLCollectionOf<HTMLTableRowElement>;
     /**
       * Removes the specified row (tr) from the element and from the rows collection.
       * @param index Number that specifies the zero-based position in the rows collection of the row to remove.
@@ -11920,6 +12940,15 @@ declare var HTMLTableSectionElement: {
     new(): HTMLTableSectionElement;
 }
 
+interface HTMLTemplateElement extends HTMLElement {
+    readonly content: DocumentFragment;
+}
+
+declare var HTMLTemplateElement: {
+    prototype: HTMLTemplateElement;
+    new(): HTMLTemplateElement;
+}
+
 interface HTMLTextAreaElement extends HTMLElement {
     /**
       * Provides a way to direct a user to a specific field when a document loads. This can provide both direction and convenience for a user, reducing the need to click or tab to a field when a page opens. This attribute is true when present on an element, and false when missing.
@@ -11937,7 +12966,7 @@ interface HTMLTextAreaElement extends HTMLElement {
     /**
       * Retrieves a reference to the form that the object is embedded in.
       */
-    form: HTMLFormElement;
+    readonly form: HTMLFormElement;
     /**
       * Sets or retrieves the maximum number of characters that the user can enter in a text control.
       */
@@ -11977,15 +13006,15 @@ interface HTMLTextAreaElement extends HTMLElement {
     /**
       * Retrieves the type of control.
       */
-    type: string;
+    readonly type: string;
     /**
       * Returns the error message that would be displayed if the user submits the form, or an empty string if no error message. It also triggers the standard error message, such as "this is a required field". The result is that the user sees validation messages without actually submitting.
       */
-    validationMessage: string;
+    readonly validationMessage: string;
     /**
       * Returns a  ValidityState object that represents the validity states of an element.
       */
-    validity: ValidityState;
+    readonly validity: ValidityState;
     /**
       * Retrieves or sets the text in the entry field of the textArea element.
       */
@@ -11993,20 +13022,17 @@ interface HTMLTextAreaElement extends HTMLElement {
     /**
       * Returns whether an element will successfully validate based on forms validation rules and constraints.
       */
-    willValidate: boolean;
+    readonly willValidate: boolean;
     /**
       * Sets or retrieves how to handle wordwrapping in the object.
       */
     wrap: string;
+    minLength: number;
     /**
       * Returns whether a form will validate when it is submitted, without having to submit it.
       */
     checkValidity(): boolean;
     /**
-      * Creates a TextRange object for the element.
-      */
-    createTextRange(): TextRange;
-    /**
       * Highlights the input area of a form element.
       */
     select(): void;
@@ -12044,23 +13070,23 @@ interface HTMLTrackElement extends HTMLElement {
     default: boolean;
     kind: string;
     label: string;
-    readyState: number;
+    readonly readyState: number;
     src: string;
     srclang: string;
-    track: TextTrack;
-    ERROR: number;
-    LOADED: number;
-    LOADING: number;
-    NONE: number;
+    readonly track: TextTrack;
+    readonly ERROR: number;
+    readonly LOADED: number;
+    readonly LOADING: number;
+    readonly NONE: number;
 }
 
 declare var HTMLTrackElement: {
     prototype: HTMLTrackElement;
     new(): HTMLTrackElement;
-    ERROR: number;
-    LOADED: number;
-    LOADING: number;
-    NONE: number;
+    readonly ERROR: number;
+    readonly LOADED: number;
+    readonly LOADING: number;
+    readonly NONE: number;
 }
 
 interface HTMLUListElement extends HTMLElement {
@@ -12087,14 +13113,14 @@ interface HTMLVideoElement extends HTMLMediaElement {
       */
     height: number;
     msHorizontalMirror: boolean;
-    msIsLayoutOptimalForPlayback: boolean;
-    msIsStereo3D: boolean;
+    readonly msIsLayoutOptimalForPlayback: boolean;
+    readonly msIsStereo3D: boolean;
     msStereo3DPackingMode: string;
     msStereo3DRenderMode: string;
     msZoom: boolean;
-    onMSVideoFormatChanged: (ev: Event) => any;
-    onMSVideoFrameStepCompleted: (ev: Event) => any;
-    onMSVideoOptimalLayoutChanged: (ev: Event) => any;
+    onMSVideoFormatChanged: (this: this, ev: Event) => any;
+    onMSVideoFrameStepCompleted: (this: this, ev: Event) => any;
+    onMSVideoOptimalLayoutChanged: (this: this, ev: Event) => any;
     /**
       * Gets or sets a URL of an image to display, for example, like a movie poster. This can be a still frame from the video, or another image if no video data is available.
       */
@@ -12102,13 +13128,13 @@ interface HTMLVideoElement extends HTMLMediaElement {
     /**
       * Gets the intrinsic height of a video in CSS pixels, or zero if the dimensions are not known.
       */
-    videoHeight: number;
+    readonly videoHeight: number;
     /**
       * Gets the intrinsic width of a video in CSS pixels, or zero if the dimensions are not known.
       */
-    videoWidth: number;
-    webkitDisplayingFullscreen: boolean;
-    webkitSupportsFullscreen: boolean;
+    readonly videoWidth: number;
+    readonly webkitDisplayingFullscreen: boolean;
+    readonly webkitSupportsFullscreen: boolean;
     /**
       * Gets or sets the width of the video element.
       */
@@ -12121,112 +13147,114 @@ interface HTMLVideoElement extends HTMLMediaElement {
     webkitEnterFullscreen(): void;
     webkitExitFullScreen(): void;
     webkitExitFullscreen(): void;
-    addEventListener(type: "MSContentZoom", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureChange", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureDoubleTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureEnd", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureHold", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGotPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSInertiaStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSLostPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSManipulationStateChanged", listener: (ev: MSManipulationEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerCancel", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerDown", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerEnter", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerLeave", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerMove", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOut", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOver", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerUp", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSVideoFormatChanged", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSVideoFrameStepCompleted", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSVideoOptimalLayoutChanged", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "abort", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "activate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ariarequest", listener: (ev: AriaRequestEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforecopy", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforecut", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforedeactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforepaste", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "blur", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplay", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplaythrough", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "change", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "click", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "command", listener: (ev: CommandEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "contextmenu", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "copy", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "cuechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "cut", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dblclick", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "deactivate", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drag", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragend", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragenter", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragleave", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragover", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragstart", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drop", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "durationchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "emptied", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "ended", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "focus", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "gotpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "input", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "keydown", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keypress", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keyup", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadeddata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadedmetadata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "lostpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousedown", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseenter", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseleave", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousemove", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseout", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseover", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseup", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousewheel", listener: (ev: MouseWheelEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "msneedkey", listener: (ev: MSMediaKeyNeededEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "paste", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pause", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "play", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "playing", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointercancel", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerdown", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerenter", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerleave", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointermove", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerout", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerover", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerup", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "progress", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ratechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "reset", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "scroll", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeked", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeking", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "select", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "selectstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "stalled", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "submit", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "suspend", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "timeupdate", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchcancel", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchend", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchmove", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchstart", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "volumechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "waiting", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenerror", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "wheel", listener: (ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSContentZoom", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSManipulationStateChanged", listener: (this: this, ev: MSManipulationEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSVideoFormatChanged", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSVideoFrameStepCompleted", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSVideoOptimalLayoutChanged", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "activate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforecopy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforecut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforedeactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforepaste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "copy", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "cut", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "deactivate", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "encrypted", listener: (this: this, ev: MediaEncryptedEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "msneedkey", listener: (this: this, ev: MSMediaKeyNeededEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "paste", listener: (this: this, ev: ClipboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "selectstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -12236,8 +13264,8 @@ declare var HTMLVideoElement: {
 }
 
 interface HashChangeEvent extends Event {
-    newURL: string;
-    oldURL: string;
+    readonly newURL: string | null;
+    readonly oldURL: string | null;
 }
 
 declare var HashChangeEvent: {
@@ -12246,8 +13274,8 @@ declare var HashChangeEvent: {
 }
 
 interface History {
-    length: number;
-    state: any;
+    readonly length: number;
+    readonly state: any;
     back(distance?: any): void;
     forward(distance?: any): void;
     go(delta?: any): void;
@@ -12261,31 +13289,31 @@ declare var History: {
 }
 
 interface IDBCursor {
-    direction: string;
-    key: any;
-    primaryKey: any;
-    source: any;
+    readonly direction: string;
+    key: IDBKeyRange | IDBValidKey;
+    readonly primaryKey: any;
+    source: IDBObjectStore | IDBIndex;
     advance(count: number): void;
-    continue(key?: any): void;
+    continue(key?: IDBKeyRange | IDBValidKey): void;
     delete(): IDBRequest;
     update(value: any): IDBRequest;
-    NEXT: string;
-    NEXT_NO_DUPLICATE: string;
-    PREV: string;
-    PREV_NO_DUPLICATE: string;
+    readonly NEXT: string;
+    readonly NEXT_NO_DUPLICATE: string;
+    readonly PREV: string;
+    readonly PREV_NO_DUPLICATE: string;
 }
 
 declare var IDBCursor: {
     prototype: IDBCursor;
     new(): IDBCursor;
-    NEXT: string;
-    NEXT_NO_DUPLICATE: string;
-    PREV: string;
-    PREV_NO_DUPLICATE: string;
+    readonly NEXT: string;
+    readonly NEXT_NO_DUPLICATE: string;
+    readonly PREV: string;
+    readonly PREV_NO_DUPLICATE: string;
 }
 
 interface IDBCursorWithValue extends IDBCursor {
-    value: any;
+    readonly value: any;
 }
 
 declare var IDBCursorWithValue: {
@@ -12294,17 +13322,19 @@ declare var IDBCursorWithValue: {
 }
 
 interface IDBDatabase extends EventTarget {
-    name: string;
-    objectStoreNames: DOMStringList;
-    onabort: (ev: Event) => any;
-    onerror: (ev: Event) => any;
-    version: string;
+    readonly name: string;
+    readonly objectStoreNames: DOMStringList;
+    onabort: (this: this, ev: Event) => any;
+    onerror: (this: this, ev: ErrorEvent) => any;
+    version: number;
+    onversionchange: (ev: IDBVersionChangeEvent) => any;
     close(): void;
     createObjectStore(name: string, optionalParameters?: IDBObjectStoreParameters): IDBObjectStore;
     deleteObjectStore(name: string): void;
-    transaction(storeNames: any, mode?: string): IDBTransaction;
-    addEventListener(type: "abort", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
+    transaction(storeNames: string | string[], mode?: string): IDBTransaction;
+    addEventListener(type: "versionchange", listener: (ev: IDBVersionChangeEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -12326,15 +13356,15 @@ declare var IDBFactory: {
 
 interface IDBIndex {
     keyPath: string | string[];
-    name: string;
-    objectStore: IDBObjectStore;
-    unique: boolean;
+    readonly name: string;
+    readonly objectStore: IDBObjectStore;
+    readonly unique: boolean;
     multiEntry: boolean;
-    count(key?: any): IDBRequest;
-    get(key: any): IDBRequest;
-    getKey(key: any): IDBRequest;
-    openCursor(range?: IDBKeyRange, direction?: string): IDBRequest;
-    openKeyCursor(range?: IDBKeyRange, direction?: string): IDBRequest;
+    count(key?: IDBKeyRange | IDBValidKey): IDBRequest;
+    get(key: IDBKeyRange | IDBValidKey): IDBRequest;
+    getKey(key: IDBKeyRange | IDBValidKey): IDBRequest;
+    openCursor(range?: IDBKeyRange | IDBValidKey, direction?: string): IDBRequest;
+    openKeyCursor(range?: IDBKeyRange | IDBValidKey, direction?: string): IDBRequest;
 }
 
 declare var IDBIndex: {
@@ -12343,36 +13373,37 @@ declare var IDBIndex: {
 }
 
 interface IDBKeyRange {
-    lower: any;
-    lowerOpen: boolean;
-    upper: any;
-    upperOpen: boolean;
+    readonly lower: any;
+    readonly lowerOpen: boolean;
+    readonly upper: any;
+    readonly upperOpen: boolean;
 }
 
 declare var IDBKeyRange: {
     prototype: IDBKeyRange;
     new(): IDBKeyRange;
     bound(lower: any, upper: any, lowerOpen?: boolean, upperOpen?: boolean): IDBKeyRange;
-    lowerBound(bound: any, open?: boolean): IDBKeyRange;
+    lowerBound(lower: any, open?: boolean): IDBKeyRange;
     only(value: any): IDBKeyRange;
-    upperBound(bound: any, open?: boolean): IDBKeyRange;
+    upperBound(upper: any, open?: boolean): IDBKeyRange;
 }
 
 interface IDBObjectStore {
-    indexNames: DOMStringList;
-    keyPath: string;
-    name: string;
-    transaction: IDBTransaction;
-    add(value: any, key?: any): IDBRequest;
+    readonly indexNames: DOMStringList;
+    keyPath: string | string[];
+    readonly name: string;
+    readonly transaction: IDBTransaction;
+    autoIncrement: boolean;
+    add(value: any, key?: IDBKeyRange | IDBValidKey): IDBRequest;
     clear(): IDBRequest;
-    count(key?: any): IDBRequest;
+    count(key?: IDBKeyRange | IDBValidKey): IDBRequest;
     createIndex(name: string, keyPath: string | string[], optionalParameters?: IDBIndexParameters): IDBIndex;
-    delete(key: any): IDBRequest;
+    delete(key: IDBKeyRange | IDBValidKey): IDBRequest;
     deleteIndex(indexName: string): void;
     get(key: any): IDBRequest;
     index(name: string): IDBIndex;
-    openCursor(range?: any, direction?: string): IDBRequest;
-    put(value: any, key?: any): IDBRequest;
+    openCursor(range?: IDBKeyRange | IDBValidKey, direction?: string): IDBRequest;
+    put(value: any, key?: IDBKeyRange | IDBValidKey): IDBRequest;
 }
 
 declare var IDBObjectStore: {
@@ -12381,12 +13412,12 @@ declare var IDBObjectStore: {
 }
 
 interface IDBOpenDBRequest extends IDBRequest {
-    onblocked: (ev: Event) => any;
-    onupgradeneeded: (ev: IDBVersionChangeEvent) => any;
-    addEventListener(type: "blocked", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "success", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "upgradeneeded", listener: (ev: IDBVersionChangeEvent) => any, useCapture?: boolean): void;
+    onblocked: (this: this, ev: Event) => any;
+    onupgradeneeded: (this: this, ev: IDBVersionChangeEvent) => any;
+    addEventListener(type: "blocked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "success", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "upgradeneeded", listener: (this: this, ev: IDBVersionChangeEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -12396,15 +13427,15 @@ declare var IDBOpenDBRequest: {
 }
 
 interface IDBRequest extends EventTarget {
-    error: DOMError;
-    onerror: (ev: Event) => any;
-    onsuccess: (ev: Event) => any;
-    readyState: string;
-    result: any;
-    source: any;
-    transaction: IDBTransaction;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "success", listener: (ev: Event) => any, useCapture?: boolean): void;
+    readonly error: DOMError;
+    onerror: (this: this, ev: ErrorEvent) => any;
+    onsuccess: (this: this, ev: Event) => any;
+    readonly readyState: string;
+    readonly result: any;
+    source: IDBObjectStore | IDBIndex | IDBCursor;
+    readonly transaction: IDBTransaction;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "success", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -12414,34 +13445,34 @@ declare var IDBRequest: {
 }
 
 interface IDBTransaction extends EventTarget {
-    db: IDBDatabase;
-    error: DOMError;
-    mode: string;
-    onabort: (ev: Event) => any;
-    oncomplete: (ev: Event) => any;
-    onerror: (ev: Event) => any;
+    readonly db: IDBDatabase;
+    readonly error: DOMError;
+    readonly mode: string;
+    onabort: (this: this, ev: Event) => any;
+    oncomplete: (this: this, ev: Event) => any;
+    onerror: (this: this, ev: ErrorEvent) => any;
     abort(): void;
     objectStore(name: string): IDBObjectStore;
-    READ_ONLY: string;
-    READ_WRITE: string;
-    VERSION_CHANGE: string;
-    addEventListener(type: "abort", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "complete", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
+    readonly READ_ONLY: string;
+    readonly READ_WRITE: string;
+    readonly VERSION_CHANGE: string;
+    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var IDBTransaction: {
     prototype: IDBTransaction;
     new(): IDBTransaction;
-    READ_ONLY: string;
-    READ_WRITE: string;
-    VERSION_CHANGE: string;
+    readonly READ_ONLY: string;
+    readonly READ_WRITE: string;
+    readonly VERSION_CHANGE: string;
 }
 
 interface IDBVersionChangeEvent extends Event {
-    newVersion: number;
-    oldVersion: number;
+    readonly newVersion: number | null;
+    readonly oldVersion: number;
 }
 
 declare var IDBVersionChangeEvent: {
@@ -12451,8 +13482,8 @@ declare var IDBVersionChangeEvent: {
 
 interface ImageData {
     data: Uint8ClampedArray;
-    height: number;
-    width: number;
+    readonly height: number;
+    readonly width: number;
 }
 
 declare var ImageData: {
@@ -12462,37 +13493,48 @@ declare var ImageData: {
 }
 
 interface KeyboardEvent extends UIEvent {
-    altKey: boolean;
-    char: string;
-    charCode: number;
-    ctrlKey: boolean;
-    key: string;
-    keyCode: number;
-    locale: string;
-    location: number;
-    metaKey: boolean;
-    repeat: boolean;
-    shiftKey: boolean;
-    which: number;
+    readonly altKey: boolean;
+    readonly char: string | null;
+    readonly charCode: number;
+    readonly ctrlKey: boolean;
+    readonly key: string;
+    readonly keyCode: number;
+    readonly locale: string;
+    readonly location: number;
+    readonly metaKey: boolean;
+    readonly repeat: boolean;
+    readonly shiftKey: boolean;
+    readonly which: number;
+    readonly code: string;
     getModifierState(keyArg: string): boolean;
     initKeyboardEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, viewArg: Window, keyArg: string, locationArg: number, modifiersListArg: string, repeat: boolean, locale: string): void;
-    DOM_KEY_LOCATION_JOYSTICK: number;
-    DOM_KEY_LOCATION_LEFT: number;
-    DOM_KEY_LOCATION_MOBILE: number;
-    DOM_KEY_LOCATION_NUMPAD: number;
-    DOM_KEY_LOCATION_RIGHT: number;
-    DOM_KEY_LOCATION_STANDARD: number;
+    readonly DOM_KEY_LOCATION_JOYSTICK: number;
+    readonly DOM_KEY_LOCATION_LEFT: number;
+    readonly DOM_KEY_LOCATION_MOBILE: number;
+    readonly DOM_KEY_LOCATION_NUMPAD: number;
+    readonly DOM_KEY_LOCATION_RIGHT: number;
+    readonly DOM_KEY_LOCATION_STANDARD: number;
 }
 
 declare var KeyboardEvent: {
     prototype: KeyboardEvent;
     new(typeArg: string, eventInitDict?: KeyboardEventInit): KeyboardEvent;
-    DOM_KEY_LOCATION_JOYSTICK: number;
-    DOM_KEY_LOCATION_LEFT: number;
-    DOM_KEY_LOCATION_MOBILE: number;
-    DOM_KEY_LOCATION_NUMPAD: number;
-    DOM_KEY_LOCATION_RIGHT: number;
-    DOM_KEY_LOCATION_STANDARD: number;
+    readonly DOM_KEY_LOCATION_JOYSTICK: number;
+    readonly DOM_KEY_LOCATION_LEFT: number;
+    readonly DOM_KEY_LOCATION_MOBILE: number;
+    readonly DOM_KEY_LOCATION_NUMPAD: number;
+    readonly DOM_KEY_LOCATION_RIGHT: number;
+    readonly DOM_KEY_LOCATION_STANDARD: number;
+}
+
+interface ListeningStateChangedEvent extends Event {
+    readonly label: string;
+    readonly state: string;
+}
+
+declare var ListeningStateChangedEvent: {
+    prototype: ListeningStateChangedEvent;
+    new(): ListeningStateChangedEvent;
 }
 
 interface Location {
@@ -12500,7 +13542,7 @@ interface Location {
     host: string;
     hostname: string;
     href: string;
-    origin: string;
+    readonly origin: string;
     pathname: string;
     port: string;
     protocol: string;
@@ -12517,7 +13559,7 @@ declare var Location: {
 }
 
 interface LongRunningScriptDetectedEvent extends Event {
-    executionTime: number;
+    readonly executionTime: number;
     stopPageScriptExecution: boolean;
 }
 
@@ -12536,40 +13578,50 @@ interface MSApp {
     execAsyncAtPriority(asynchronousCallback: MSExecAtPriorityFunctionCallback, priority: string, ...args: any[]): void;
     execAtPriority(synchronousCallback: MSExecAtPriorityFunctionCallback, priority: string, ...args: any[]): any;
     getCurrentPriority(): string;
-    getHtmlPrintDocumentSourceAsync(htmlDoc: any): any;
+    getHtmlPrintDocumentSourceAsync(htmlDoc: any): PromiseLike<any>;
     getViewId(view: any): any;
     isTaskScheduledAtPriorityOrHigher(priority: string): boolean;
     pageHandlesAllApplicationActivations(enabled: boolean): void;
     suppressSubdownloadCredentialPrompts(suppress: boolean): void;
     terminateApp(exceptionObject: any): void;
-    CURRENT: string;
-    HIGH: string;
-    IDLE: string;
-    NORMAL: string;
+    readonly CURRENT: string;
+    readonly HIGH: string;
+    readonly IDLE: string;
+    readonly NORMAL: string;
 }
 declare var MSApp: MSApp;
 
 interface MSAppAsyncOperation extends EventTarget {
-    error: DOMError;
-    oncomplete: (ev: Event) => any;
-    onerror: (ev: Event) => any;
-    readyState: number;
-    result: any;
+    readonly error: DOMError;
+    oncomplete: (this: this, ev: Event) => any;
+    onerror: (this: this, ev: ErrorEvent) => any;
+    readonly readyState: number;
+    readonly result: any;
     start(): void;
-    COMPLETED: number;
-    ERROR: number;
-    STARTED: number;
-    addEventListener(type: "complete", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
+    readonly COMPLETED: number;
+    readonly ERROR: number;
+    readonly STARTED: number;
+    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var MSAppAsyncOperation: {
     prototype: MSAppAsyncOperation;
     new(): MSAppAsyncOperation;
-    COMPLETED: number;
-    ERROR: number;
-    STARTED: number;
+    readonly COMPLETED: number;
+    readonly ERROR: number;
+    readonly STARTED: number;
+}
+
+interface MSAssertion {
+    readonly id: string;
+    readonly type: string;
+}
+
+declare var MSAssertion: {
+    prototype: MSAssertion;
+    new(): MSAssertion;
 }
 
 interface MSBlobBuilder {
@@ -12582,44 +13634,46 @@ declare var MSBlobBuilder: {
     new(): MSBlobBuilder;
 }
 
-interface MSCSSMatrix {
-    a: number;
-    b: number;
-    c: number;
-    d: number;
-    e: number;
-    f: number;
-    m11: number;
-    m12: number;
-    m13: number;
-    m14: number;
-    m21: number;
-    m22: number;
-    m23: number;
-    m24: number;
-    m31: number;
-    m32: number;
-    m33: number;
-    m34: number;
-    m41: number;
-    m42: number;
-    m43: number;
-    m44: number;
-    inverse(): MSCSSMatrix;
-    multiply(secondMatrix: MSCSSMatrix): MSCSSMatrix;
-    rotate(angleX: number, angleY?: number, angleZ?: number): MSCSSMatrix;
-    rotateAxisAngle(x: number, y: number, z: number, angle: number): MSCSSMatrix;
-    scale(scaleX: number, scaleY?: number, scaleZ?: number): MSCSSMatrix;
-    setMatrixValue(value: string): void;
-    skewX(angle: number): MSCSSMatrix;
-    skewY(angle: number): MSCSSMatrix;
-    toString(): string;
-    translate(x: number, y: number, z?: number): MSCSSMatrix;
+interface MSCredentials {
+    getAssertion(challenge: string, filter?: MSCredentialFilter, params?: MSSignatureParameters): PromiseLike<MSAssertion>;
+    makeCredential(accountInfo: MSAccountInfo, params: MSCredentialParameters[], challenge?: string): PromiseLike<MSAssertion>;
+}
+
+declare var MSCredentials: {
+    prototype: MSCredentials;
+    new(): MSCredentials;
+}
+
+interface MSFIDOCredentialAssertion extends MSAssertion {
+    readonly algorithm: string | Algorithm;
+    readonly attestation: any;
+    readonly publicKey: string;
+    readonly transportHints: string[];
+}
+
+declare var MSFIDOCredentialAssertion: {
+    prototype: MSFIDOCredentialAssertion;
+    new(): MSFIDOCredentialAssertion;
+}
+
+interface MSFIDOSignature {
+    readonly authnrData: string;
+    readonly clientData: string;
+    readonly signature: string;
+}
+
+declare var MSFIDOSignature: {
+    prototype: MSFIDOSignature;
+    new(): MSFIDOSignature;
+}
+
+interface MSFIDOSignatureAssertion extends MSAssertion {
+    readonly signature: MSFIDOSignature;
 }
 
-declare var MSCSSMatrix: {
-    prototype: MSCSSMatrix;
-    new(text?: string): MSCSSMatrix;
+declare var MSFIDOSignatureAssertion: {
+    prototype: MSFIDOSignatureAssertion;
+    new(): MSFIDOSignatureAssertion;
 }
 
 interface MSGesture {
@@ -12634,44 +13688,44 @@ declare var MSGesture: {
 }
 
 interface MSGestureEvent extends UIEvent {
-    clientX: number;
-    clientY: number;
-    expansion: number;
-    gestureObject: any;
-    hwTimestamp: number;
-    offsetX: number;
-    offsetY: number;
-    rotation: number;
-    scale: number;
-    screenX: number;
-    screenY: number;
-    translationX: number;
-    translationY: number;
-    velocityAngular: number;
-    velocityExpansion: number;
-    velocityX: number;
-    velocityY: number;
+    readonly clientX: number;
+    readonly clientY: number;
+    readonly expansion: number;
+    readonly gestureObject: any;
+    readonly hwTimestamp: number;
+    readonly offsetX: number;
+    readonly offsetY: number;
+    readonly rotation: number;
+    readonly scale: number;
+    readonly screenX: number;
+    readonly screenY: number;
+    readonly translationX: number;
+    readonly translationY: number;
+    readonly velocityAngular: number;
+    readonly velocityExpansion: number;
+    readonly velocityX: number;
+    readonly velocityY: number;
     initGestureEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, viewArg: Window, detailArg: number, screenXArg: number, screenYArg: number, clientXArg: number, clientYArg: number, offsetXArg: number, offsetYArg: number, translationXArg: number, translationYArg: number, scaleArg: number, expansionArg: number, rotationArg: number, velocityXArg: number, velocityYArg: number, velocityExpansionArg: number, velocityAngularArg: number, hwTimestampArg: number): void;
-    MSGESTURE_FLAG_BEGIN: number;
-    MSGESTURE_FLAG_CANCEL: number;
-    MSGESTURE_FLAG_END: number;
-    MSGESTURE_FLAG_INERTIA: number;
-    MSGESTURE_FLAG_NONE: number;
+    readonly MSGESTURE_FLAG_BEGIN: number;
+    readonly MSGESTURE_FLAG_CANCEL: number;
+    readonly MSGESTURE_FLAG_END: number;
+    readonly MSGESTURE_FLAG_INERTIA: number;
+    readonly MSGESTURE_FLAG_NONE: number;
 }
 
 declare var MSGestureEvent: {
     prototype: MSGestureEvent;
     new(): MSGestureEvent;
-    MSGESTURE_FLAG_BEGIN: number;
-    MSGESTURE_FLAG_CANCEL: number;
-    MSGESTURE_FLAG_END: number;
-    MSGESTURE_FLAG_INERTIA: number;
-    MSGESTURE_FLAG_NONE: number;
+    readonly MSGESTURE_FLAG_BEGIN: number;
+    readonly MSGESTURE_FLAG_CANCEL: number;
+    readonly MSGESTURE_FLAG_END: number;
+    readonly MSGESTURE_FLAG_INERTIA: number;
+    readonly MSGESTURE_FLAG_NONE: number;
 }
 
 interface MSGraphicsTrust {
-    constrictionActive: boolean;
-    status: string;
+    readonly constrictionActive: boolean;
+    readonly status: string;
 }
 
 declare var MSGraphicsTrust: {
@@ -12680,12 +13734,12 @@ declare var MSGraphicsTrust: {
 }
 
 interface MSHTMLWebViewElement extends HTMLElement {
-    canGoBack: boolean;
-    canGoForward: boolean;
-    containsFullScreenElement: boolean;
-    documentTitle: string;
+    readonly canGoBack: boolean;
+    readonly canGoForward: boolean;
+    readonly containsFullScreenElement: boolean;
+    readonly documentTitle: string;
     height: number;
-    settings: MSWebViewSettings;
+    readonly settings: MSWebViewSettings;
     src: string;
     width: number;
     addWebAllowedObject(name: string, applicationObject: any): void;
@@ -12711,19 +13765,19 @@ declare var MSHTMLWebViewElement: {
 }
 
 interface MSInputMethodContext extends EventTarget {
-    compositionEndOffset: number;
-    compositionStartOffset: number;
-    oncandidatewindowhide: (ev: Event) => any;
-    oncandidatewindowshow: (ev: Event) => any;
-    oncandidatewindowupdate: (ev: Event) => any;
-    target: HTMLElement;
+    readonly compositionEndOffset: number;
+    readonly compositionStartOffset: number;
+    oncandidatewindowhide: (this: this, ev: Event) => any;
+    oncandidatewindowshow: (this: this, ev: Event) => any;
+    oncandidatewindowupdate: (this: this, ev: Event) => any;
+    readonly target: HTMLElement;
     getCandidateWindowClientRect(): ClientRect;
     getCompositionAlternatives(): string[];
     hasComposition(): boolean;
     isCandidateWindowVisible(): boolean;
-    addEventListener(type: "MSCandidateWindowHide", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSCandidateWindowShow", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSCandidateWindowUpdate", listener: (ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSCandidateWindowHide", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSCandidateWindowShow", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSCandidateWindowUpdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -12733,59 +13787,59 @@ declare var MSInputMethodContext: {
 }
 
 interface MSManipulationEvent extends UIEvent {
-    currentState: number;
-    inertiaDestinationX: number;
-    inertiaDestinationY: number;
-    lastState: number;
+    readonly currentState: number;
+    readonly inertiaDestinationX: number;
+    readonly inertiaDestinationY: number;
+    readonly lastState: number;
     initMSManipulationEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, viewArg: Window, detailArg: number, lastState: number, currentState: number): void;
-    MS_MANIPULATION_STATE_ACTIVE: number;
-    MS_MANIPULATION_STATE_CANCELLED: number;
-    MS_MANIPULATION_STATE_COMMITTED: number;
-    MS_MANIPULATION_STATE_DRAGGING: number;
-    MS_MANIPULATION_STATE_INERTIA: number;
-    MS_MANIPULATION_STATE_PRESELECT: number;
-    MS_MANIPULATION_STATE_SELECTING: number;
-    MS_MANIPULATION_STATE_STOPPED: number;
+    readonly MS_MANIPULATION_STATE_ACTIVE: number;
+    readonly MS_MANIPULATION_STATE_CANCELLED: number;
+    readonly MS_MANIPULATION_STATE_COMMITTED: number;
+    readonly MS_MANIPULATION_STATE_DRAGGING: number;
+    readonly MS_MANIPULATION_STATE_INERTIA: number;
+    readonly MS_MANIPULATION_STATE_PRESELECT: number;
+    readonly MS_MANIPULATION_STATE_SELECTING: number;
+    readonly MS_MANIPULATION_STATE_STOPPED: number;
 }
 
 declare var MSManipulationEvent: {
     prototype: MSManipulationEvent;
     new(): MSManipulationEvent;
-    MS_MANIPULATION_STATE_ACTIVE: number;
-    MS_MANIPULATION_STATE_CANCELLED: number;
-    MS_MANIPULATION_STATE_COMMITTED: number;
-    MS_MANIPULATION_STATE_DRAGGING: number;
-    MS_MANIPULATION_STATE_INERTIA: number;
-    MS_MANIPULATION_STATE_PRESELECT: number;
-    MS_MANIPULATION_STATE_SELECTING: number;
-    MS_MANIPULATION_STATE_STOPPED: number;
+    readonly MS_MANIPULATION_STATE_ACTIVE: number;
+    readonly MS_MANIPULATION_STATE_CANCELLED: number;
+    readonly MS_MANIPULATION_STATE_COMMITTED: number;
+    readonly MS_MANIPULATION_STATE_DRAGGING: number;
+    readonly MS_MANIPULATION_STATE_INERTIA: number;
+    readonly MS_MANIPULATION_STATE_PRESELECT: number;
+    readonly MS_MANIPULATION_STATE_SELECTING: number;
+    readonly MS_MANIPULATION_STATE_STOPPED: number;
 }
 
 interface MSMediaKeyError {
-    code: number;
-    systemCode: number;
-    MS_MEDIA_KEYERR_CLIENT: number;
-    MS_MEDIA_KEYERR_DOMAIN: number;
-    MS_MEDIA_KEYERR_HARDWARECHANGE: number;
-    MS_MEDIA_KEYERR_OUTPUT: number;
-    MS_MEDIA_KEYERR_SERVICE: number;
-    MS_MEDIA_KEYERR_UNKNOWN: number;
+    readonly code: number;
+    readonly systemCode: number;
+    readonly MS_MEDIA_KEYERR_CLIENT: number;
+    readonly MS_MEDIA_KEYERR_DOMAIN: number;
+    readonly MS_MEDIA_KEYERR_HARDWARECHANGE: number;
+    readonly MS_MEDIA_KEYERR_OUTPUT: number;
+    readonly MS_MEDIA_KEYERR_SERVICE: number;
+    readonly MS_MEDIA_KEYERR_UNKNOWN: number;
 }
 
 declare var MSMediaKeyError: {
     prototype: MSMediaKeyError;
     new(): MSMediaKeyError;
-    MS_MEDIA_KEYERR_CLIENT: number;
-    MS_MEDIA_KEYERR_DOMAIN: number;
-    MS_MEDIA_KEYERR_HARDWARECHANGE: number;
-    MS_MEDIA_KEYERR_OUTPUT: number;
-    MS_MEDIA_KEYERR_SERVICE: number;
-    MS_MEDIA_KEYERR_UNKNOWN: number;
+    readonly MS_MEDIA_KEYERR_CLIENT: number;
+    readonly MS_MEDIA_KEYERR_DOMAIN: number;
+    readonly MS_MEDIA_KEYERR_HARDWARECHANGE: number;
+    readonly MS_MEDIA_KEYERR_OUTPUT: number;
+    readonly MS_MEDIA_KEYERR_SERVICE: number;
+    readonly MS_MEDIA_KEYERR_UNKNOWN: number;
 }
 
 interface MSMediaKeyMessageEvent extends Event {
-    destinationURL: string;
-    message: Uint8Array;
+    readonly destinationURL: string | null;
+    readonly message: Uint8Array;
 }
 
 declare var MSMediaKeyMessageEvent: {
@@ -12794,7 +13848,7 @@ declare var MSMediaKeyMessageEvent: {
 }
 
 interface MSMediaKeyNeededEvent extends Event {
-    initData: Uint8Array;
+    readonly initData: Uint8Array | null;
 }
 
 declare var MSMediaKeyNeededEvent: {
@@ -12803,9 +13857,9 @@ declare var MSMediaKeyNeededEvent: {
 }
 
 interface MSMediaKeySession extends EventTarget {
-    error: MSMediaKeyError;
-    keySystem: string;
-    sessionId: string;
+    readonly error: MSMediaKeyError | null;
+    readonly keySystem: string;
+    readonly sessionId: string;
     close(): void;
     update(key: Uint8Array): void;
 }
@@ -12816,7 +13870,7 @@ declare var MSMediaKeySession: {
 }
 
 interface MSMediaKeys {
-    keySystem: string;
+    readonly keySystem: string;
     createSession(type: string, initData: Uint8Array, cdmData?: Uint8Array): MSMediaKeySession;
 }
 
@@ -12824,40 +13878,22 @@ declare var MSMediaKeys: {
     prototype: MSMediaKeys;
     new(keySystem: string): MSMediaKeys;
     isTypeSupported(keySystem: string, type?: string): boolean;
-}
-
-interface MSMimeTypesCollection {
-    length: number;
-}
-
-declare var MSMimeTypesCollection: {
-    prototype: MSMimeTypesCollection;
-    new(): MSMimeTypesCollection;
-}
-
-interface MSPluginsCollection {
-    length: number;
-    refresh(reload?: boolean): void;
-}
-
-declare var MSPluginsCollection: {
-    prototype: MSPluginsCollection;
-    new(): MSPluginsCollection;
+    isTypeSupportedWithFeatures(keySystem: string, type?: string): string;
 }
 
 interface MSPointerEvent extends MouseEvent {
-    currentPoint: any;
-    height: number;
-    hwTimestamp: number;
-    intermediatePoints: any;
-    isPrimary: boolean;
-    pointerId: number;
-    pointerType: any;
-    pressure: number;
-    rotation: number;
-    tiltX: number;
-    tiltY: number;
-    width: number;
+    readonly currentPoint: any;
+    readonly height: number;
+    readonly hwTimestamp: number;
+    readonly intermediatePoints: any;
+    readonly isPrimary: boolean;
+    readonly pointerId: number;
+    readonly pointerType: any;
+    readonly pressure: number;
+    readonly rotation: number;
+    readonly tiltX: number;
+    readonly tiltY: number;
+    readonly width: number;
     getCurrentPoint(element: Element): void;
     getIntermediatePoints(element: Element): void;
     initPointerEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, viewArg: Window, detailArg: number, screenXArg: number, screenYArg: number, clientXArg: number, clientYArg: number, ctrlKeyArg: boolean, altKeyArg: boolean, shiftKeyArg: boolean, metaKeyArg: boolean, buttonArg: number, relatedTargetArg: EventTarget, offsetXArg: number, offsetYArg: number, widthArg: number, heightArg: number, pressure: number, rotation: number, tiltX: number, tiltY: number, pointerIdArg: number, pointerType: any, hwTimestampArg: number, isPrimary: boolean): void;
@@ -12869,7 +13905,7 @@ declare var MSPointerEvent: {
 }
 
 interface MSRangeCollection {
-    length: number;
+    readonly length: number;
     item(index: number): Range;
     [index: number]: Range;
 }
@@ -12880,8 +13916,8 @@ declare var MSRangeCollection: {
 }
 
 interface MSSiteModeEvent extends Event {
-    actionURL: string;
-    buttonID: number;
+    readonly actionURL: string;
+    readonly buttonID: number;
 }
 
 declare var MSSiteModeEvent: {
@@ -12890,7 +13926,7 @@ declare var MSSiteModeEvent: {
 }
 
 interface MSStream {
-    type: string;
+    readonly type: string;
     msClose(): void;
     msDetachStream(): any;
 }
@@ -12901,7 +13937,7 @@ declare var MSStream: {
 }
 
 interface MSStreamReader extends EventTarget, MSBaseReader {
-    error: DOMError;
+    readonly error: DOMError;
     readAsArrayBuffer(stream: MSStream, size?: number): void;
     readAsBinaryString(stream: MSStream, size?: number): void;
     readAsBlob(stream: MSStream, size?: number): void;
@@ -12916,34 +13952,34 @@ declare var MSStreamReader: {
 }
 
 interface MSWebViewAsyncOperation extends EventTarget {
-    error: DOMError;
-    oncomplete: (ev: Event) => any;
-    onerror: (ev: Event) => any;
-    readyState: number;
-    result: any;
-    target: MSHTMLWebViewElement;
-    type: number;
+    readonly error: DOMError;
+    oncomplete: (this: this, ev: Event) => any;
+    onerror: (this: this, ev: ErrorEvent) => any;
+    readonly readyState: number;
+    readonly result: any;
+    readonly target: MSHTMLWebViewElement;
+    readonly type: number;
     start(): void;
-    COMPLETED: number;
-    ERROR: number;
-    STARTED: number;
-    TYPE_CAPTURE_PREVIEW_TO_RANDOM_ACCESS_STREAM: number;
-    TYPE_CREATE_DATA_PACKAGE_FROM_SELECTION: number;
-    TYPE_INVOKE_SCRIPT: number;
-    addEventListener(type: "complete", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
+    readonly COMPLETED: number;
+    readonly ERROR: number;
+    readonly STARTED: number;
+    readonly TYPE_CAPTURE_PREVIEW_TO_RANDOM_ACCESS_STREAM: number;
+    readonly TYPE_CREATE_DATA_PACKAGE_FROM_SELECTION: number;
+    readonly TYPE_INVOKE_SCRIPT: number;
+    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var MSWebViewAsyncOperation: {
     prototype: MSWebViewAsyncOperation;
     new(): MSWebViewAsyncOperation;
-    COMPLETED: number;
-    ERROR: number;
-    STARTED: number;
-    TYPE_CAPTURE_PREVIEW_TO_RANDOM_ACCESS_STREAM: number;
-    TYPE_CREATE_DATA_PACKAGE_FROM_SELECTION: number;
-    TYPE_INVOKE_SCRIPT: number;
+    readonly COMPLETED: number;
+    readonly ERROR: number;
+    readonly STARTED: number;
+    readonly TYPE_CAPTURE_PREVIEW_TO_RANDOM_ACCESS_STREAM: number;
+    readonly TYPE_CREATE_DATA_PACKAGE_FROM_SELECTION: number;
+    readonly TYPE_INVOKE_SCRIPT: number;
 }
 
 interface MSWebViewSettings {
@@ -12956,6 +13992,32 @@ declare var MSWebViewSettings: {
     new(): MSWebViewSettings;
 }
 
+interface MediaDeviceInfo {
+    readonly deviceId: string;
+    readonly groupId: string;
+    readonly kind: string;
+    readonly label: string;
+}
+
+declare var MediaDeviceInfo: {
+    prototype: MediaDeviceInfo;
+    new(): MediaDeviceInfo;
+}
+
+interface MediaDevices extends EventTarget {
+    ondevicechange: (this: this, ev: Event) => any;
+    enumerateDevices(): any;
+    getSupportedConstraints(): MediaTrackSupportedConstraints;
+    getUserMedia(constraints: MediaStreamConstraints): PromiseLike<MediaStream>;
+    addEventListener(type: "devicechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+}
+
+declare var MediaDevices: {
+    prototype: MediaDevices;
+    new(): MediaDevices;
+}
+
 interface MediaElementAudioSourceNode extends AudioNode {
 }
 
@@ -12964,28 +14026,98 @@ declare var MediaElementAudioSourceNode: {
     new(): MediaElementAudioSourceNode;
 }
 
+interface MediaEncryptedEvent extends Event {
+    readonly initData: ArrayBuffer | null;
+    readonly initDataType: string;
+}
+
+declare var MediaEncryptedEvent: {
+    prototype: MediaEncryptedEvent;
+    new(type: string, eventInitDict?: MediaEncryptedEventInit): MediaEncryptedEvent;
+}
+
 interface MediaError {
-    code: number;
-    msExtendedCode: number;
-    MEDIA_ERR_ABORTED: number;
-    MEDIA_ERR_DECODE: number;
-    MEDIA_ERR_NETWORK: number;
-    MEDIA_ERR_SRC_NOT_SUPPORTED: number;
-    MS_MEDIA_ERR_ENCRYPTED: number;
+    readonly code: number;
+    readonly msExtendedCode: number;
+    readonly MEDIA_ERR_ABORTED: number;
+    readonly MEDIA_ERR_DECODE: number;
+    readonly MEDIA_ERR_NETWORK: number;
+    readonly MEDIA_ERR_SRC_NOT_SUPPORTED: number;
+    readonly MS_MEDIA_ERR_ENCRYPTED: number;
 }
 
 declare var MediaError: {
     prototype: MediaError;
     new(): MediaError;
-    MEDIA_ERR_ABORTED: number;
-    MEDIA_ERR_DECODE: number;
-    MEDIA_ERR_NETWORK: number;
-    MEDIA_ERR_SRC_NOT_SUPPORTED: number;
-    MS_MEDIA_ERR_ENCRYPTED: number;
+    readonly MEDIA_ERR_ABORTED: number;
+    readonly MEDIA_ERR_DECODE: number;
+    readonly MEDIA_ERR_NETWORK: number;
+    readonly MEDIA_ERR_SRC_NOT_SUPPORTED: number;
+    readonly MS_MEDIA_ERR_ENCRYPTED: number;
+}
+
+interface MediaKeyMessageEvent extends Event {
+    readonly message: ArrayBuffer;
+    readonly messageType: string;
+}
+
+declare var MediaKeyMessageEvent: {
+    prototype: MediaKeyMessageEvent;
+    new(type: string, eventInitDict?: MediaKeyMessageEventInit): MediaKeyMessageEvent;
+}
+
+interface MediaKeySession extends EventTarget {
+    readonly closed: PromiseLike<void>;
+    readonly expiration: number;
+    readonly keyStatuses: MediaKeyStatusMap;
+    readonly sessionId: string;
+    close(): PromiseLike<void>;
+    generateRequest(initDataType: string, initData: any): PromiseLike<void>;
+    load(sessionId: string): PromiseLike<boolean>;
+    remove(): PromiseLike<void>;
+    update(response: any): PromiseLike<void>;
+}
+
+declare var MediaKeySession: {
+    prototype: MediaKeySession;
+    new(): MediaKeySession;
+}
+
+interface MediaKeyStatusMap {
+    readonly size: number;
+    forEach(callback: ForEachCallback): void;
+    get(keyId: any): string;
+    has(keyId: any): boolean;
+}
+
+declare var MediaKeyStatusMap: {
+    prototype: MediaKeyStatusMap;
+    new(): MediaKeyStatusMap;
+}
+
+interface MediaKeySystemAccess {
+    readonly keySystem: string;
+    createMediaKeys(): PromiseLike<MediaKeys>;
+    getConfiguration(): MediaKeySystemConfiguration;
+}
+
+declare var MediaKeySystemAccess: {
+    prototype: MediaKeySystemAccess;
+    new(): MediaKeySystemAccess;
+}
+
+interface MediaKeys {
+    createSession(sessionType?: string): MediaKeySession;
+    setServerCertificate(serverCertificate: any): PromiseLike<void>;
+}
+
+declare var MediaKeys: {
+    prototype: MediaKeys;
+    new(): MediaKeys;
 }
 
 interface MediaList {
-    length: number;
+    readonly length: number;
     mediaText: string;
     appendMedium(newMedium: string): void;
     deleteMedium(oldMedium: string): void;
@@ -13000,8 +14132,8 @@ declare var MediaList: {
 }
 
 interface MediaQueryList {
-    matches: boolean;
-    media: string;
+    readonly matches: boolean;
+    readonly media: string;
     addListener(listener: MediaQueryListListener): void;
     removeListener(listener: MediaQueryListListener): void;
 }
@@ -13012,10 +14144,10 @@ declare var MediaQueryList: {
 }
 
 interface MediaSource extends EventTarget {
-    activeSourceBuffers: SourceBufferList;
+    readonly activeSourceBuffers: SourceBufferList;
     duration: number;
-    readyState: number;
-    sourceBuffers: SourceBufferList;
+    readonly readyState: string;
+    readonly sourceBuffers: SourceBufferList;
     addSourceBuffer(type: string): SourceBuffer;
     endOfStream(error?: number): void;
     removeSourceBuffer(sourceBuffer: SourceBuffer): void;
@@ -13027,9 +14159,104 @@ declare var MediaSource: {
     isTypeSupported(type: string): boolean;
 }
 
+interface MediaStream extends EventTarget {
+    readonly active: boolean;
+    readonly id: string;
+    onactive: (this: this, ev: Event) => any;
+    onaddtrack: (this: this, ev: TrackEvent) => any;
+    oninactive: (this: this, ev: Event) => any;
+    onremovetrack: (this: this, ev: TrackEvent) => any;
+    addTrack(track: MediaStreamTrack): void;
+    clone(): MediaStream;
+    getAudioTracks(): MediaStreamTrack[];
+    getTrackById(trackId: string): MediaStreamTrack | null;
+    getTracks(): MediaStreamTrack[];
+    getVideoTracks(): MediaStreamTrack[];
+    removeTrack(track: MediaStreamTrack): void;
+    stop(): void;
+    addEventListener(type: "active", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "addtrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "inactive", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "removetrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+}
+
+declare var MediaStream: {
+    prototype: MediaStream;
+    new(streamOrTracks?: MediaStream | MediaStreamTrack[]): MediaStream;
+}
+
+interface MediaStreamAudioSourceNode extends AudioNode {
+}
+
+declare var MediaStreamAudioSourceNode: {
+    prototype: MediaStreamAudioSourceNode;
+    new(): MediaStreamAudioSourceNode;
+}
+
+interface MediaStreamError {
+    readonly constraintName: string | null;
+    readonly message: string | null;
+    readonly name: string;
+}
+
+declare var MediaStreamError: {
+    prototype: MediaStreamError;
+    new(): MediaStreamError;
+}
+
+interface MediaStreamErrorEvent extends Event {
+    readonly error: MediaStreamError | null;
+}
+
+declare var MediaStreamErrorEvent: {
+    prototype: MediaStreamErrorEvent;
+    new(type: string, eventInitDict?: MediaStreamErrorEventInit): MediaStreamErrorEvent;
+}
+
+interface MediaStreamTrack extends EventTarget {
+    enabled: boolean;
+    readonly id: string;
+    readonly kind: string;
+    readonly label: string;
+    readonly muted: boolean;
+    onended: (this: this, ev: MediaStreamErrorEvent) => any;
+    onmute: (this: this, ev: Event) => any;
+    onoverconstrained: (this: this, ev: MediaStreamErrorEvent) => any;
+    onunmute: (this: this, ev: Event) => any;
+    readonly readonly: boolean;
+    readonly readyState: string;
+    readonly remote: boolean;
+    applyConstraints(constraints: MediaTrackConstraints): PromiseLike<void>;
+    clone(): MediaStreamTrack;
+    getCapabilities(): MediaTrackCapabilities;
+    getConstraints(): MediaTrackConstraints;
+    getSettings(): MediaTrackSettings;
+    stop(): void;
+    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mute", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "overconstrained", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "unmute", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+}
+
+declare var MediaStreamTrack: {
+    prototype: MediaStreamTrack;
+    new(): MediaStreamTrack;
+}
+
+interface MediaStreamTrackEvent extends Event {
+    readonly track: MediaStreamTrack;
+}
+
+declare var MediaStreamTrackEvent: {
+    prototype: MediaStreamTrackEvent;
+    new(type: string, eventInitDict?: MediaStreamTrackEventInit): MediaStreamTrackEvent;
+}
+
 interface MessageChannel {
-    port1: MessagePort;
-    port2: MessagePort;
+    readonly port1: MessagePort;
+    readonly port2: MessagePort;
 }
 
 declare var MessageChannel: {
@@ -13038,10 +14265,10 @@ declare var MessageChannel: {
 }
 
 interface MessageEvent extends Event {
-    data: any;
-    origin: string;
-    ports: any;
-    source: Window;
+    readonly data: any;
+    readonly origin: string;
+    readonly ports: any;
+    readonly source: Window;
     initMessageEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, dataArg: any, originArg: string, lastEventIdArg: string, sourceArg: Window): void;
 }
 
@@ -13051,11 +14278,11 @@ declare var MessageEvent: {
 }
 
 interface MessagePort extends EventTarget {
-    onmessage: (ev: MessageEvent) => any;
+    onmessage: (this: this, ev: MessageEvent) => any;
     close(): void;
     postMessage(message?: any, ports?: any): void;
     start(): void;
-    addEventListener(type: "message", listener: (ev: MessageEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -13065,10 +14292,10 @@ declare var MessagePort: {
 }
 
 interface MimeType {
-    description: string;
-    enabledPlugin: Plugin;
-    suffixes: string;
-    type: string;
+    readonly description: string;
+    readonly enabledPlugin: Plugin;
+    readonly suffixes: string;
+    readonly type: string;
 }
 
 declare var MimeType: {
@@ -13077,7 +14304,7 @@ declare var MimeType: {
 }
 
 interface MimeTypeArray {
-    length: number;
+    readonly length: number;
     item(index: number): Plugin;
     namedItem(type: string): Plugin;
     [index: number]: Plugin;
@@ -13089,30 +14316,30 @@ declare var MimeTypeArray: {
 }
 
 interface MouseEvent extends UIEvent {
-    altKey: boolean;
-    button: number;
-    buttons: number;
-    clientX: number;
-    clientY: number;
-    ctrlKey: boolean;
-    fromElement: Element;
-    layerX: number;
-    layerY: number;
-    metaKey: boolean;
-    movementX: number;
-    movementY: number;
-    offsetX: number;
-    offsetY: number;
-    pageX: number;
-    pageY: number;
-    relatedTarget: EventTarget;
-    screenX: number;
-    screenY: number;
-    shiftKey: boolean;
-    toElement: Element;
-    which: number;
-    x: number;
-    y: number;
+    readonly altKey: boolean;
+    readonly button: number;
+    readonly buttons: number;
+    readonly clientX: number;
+    readonly clientY: number;
+    readonly ctrlKey: boolean;
+    readonly fromElement: Element;
+    readonly layerX: number;
+    readonly layerY: number;
+    readonly metaKey: boolean;
+    readonly movementX: number;
+    readonly movementY: number;
+    readonly offsetX: number;
+    readonly offsetY: number;
+    readonly pageX: number;
+    readonly pageY: number;
+    readonly relatedTarget: EventTarget;
+    readonly screenX: number;
+    readonly screenY: number;
+    readonly shiftKey: boolean;
+    readonly toElement: Element;
+    readonly which: number;
+    readonly x: number;
+    readonly y: number;
     getModifierState(keyArg: string): boolean;
     initMouseEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, viewArg: Window, detailArg: number, screenXArg: number, screenYArg: number, clientXArg: number, clientYArg: number, ctrlKeyArg: boolean, altKeyArg: boolean, shiftKeyArg: boolean, metaKeyArg: boolean, buttonArg: number, relatedTargetArg: EventTarget): void;
 }
@@ -13122,36 +14349,24 @@ declare var MouseEvent: {
     new(typeArg: string, eventInitDict?: MouseEventInit): MouseEvent;
 }
 
-interface MouseWheelEvent extends MouseEvent {
-    wheelDelta: number;
-    wheelDeltaX: number;
-    wheelDeltaY: number;
-    initMouseWheelEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, viewArg: Window, detailArg: number, screenXArg: number, screenYArg: number, clientXArg: number, clientYArg: number, buttonArg: number, relatedTargetArg: EventTarget, modifiersListArg: string, wheelDeltaArg: number): void;
-}
-
-declare var MouseWheelEvent: {
-    prototype: MouseWheelEvent;
-    new(): MouseWheelEvent;
-}
-
 interface MutationEvent extends Event {
-    attrChange: number;
-    attrName: string;
-    newValue: string;
-    prevValue: string;
-    relatedNode: Node;
+    readonly attrChange: number;
+    readonly attrName: string;
+    readonly newValue: string;
+    readonly prevValue: string;
+    readonly relatedNode: Node;
     initMutationEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, relatedNodeArg: Node, prevValueArg: string, newValueArg: string, attrNameArg: string, attrChangeArg: number): void;
-    ADDITION: number;
-    MODIFICATION: number;
-    REMOVAL: number;
+    readonly ADDITION: number;
+    readonly MODIFICATION: number;
+    readonly REMOVAL: number;
 }
 
 declare var MutationEvent: {
     prototype: MutationEvent;
     new(): MutationEvent;
-    ADDITION: number;
-    MODIFICATION: number;
-    REMOVAL: number;
+    readonly ADDITION: number;
+    readonly MODIFICATION: number;
+    readonly REMOVAL: number;
 }
 
 interface MutationObserver {
@@ -13166,15 +14381,15 @@ declare var MutationObserver: {
 }
 
 interface MutationRecord {
-    addedNodes: NodeList;
-    attributeName: string;
-    attributeNamespace: string;
-    nextSibling: Node;
-    oldValue: string;
-    previousSibling: Node;
-    removedNodes: NodeList;
-    target: Node;
-    type: string;
+    readonly addedNodes: NodeList;
+    readonly attributeName: string | null;
+    readonly attributeNamespace: string | null;
+    readonly nextSibling: Node | null;
+    readonly oldValue: string | null;
+    readonly previousSibling: Node | null;
+    readonly removedNodes: NodeList;
+    readonly target: Node;
+    readonly type: string;
 }
 
 declare var MutationRecord: {
@@ -13183,12 +14398,12 @@ declare var MutationRecord: {
 }
 
 interface NamedNodeMap {
-    length: number;
+    readonly length: number;
     getNamedItem(name: string): Attr;
-    getNamedItemNS(namespaceURI: string, localName: string): Attr;
+    getNamedItemNS(namespaceURI: string | null, localName: string | null): Attr;
     item(index: number): Attr;
     removeNamedItem(name: string): Attr;
-    removeNamedItemNS(namespaceURI: string, localName: string): Attr;
+    removeNamedItemNS(namespaceURI: string | null, localName: string | null): Attr;
     setNamedItem(arg: Attr): Attr;
     setNamedItemNS(arg: Attr): Attr;
     [index: number]: Attr;
@@ -13200,8 +14415,8 @@ declare var NamedNodeMap: {
 }
 
 interface NavigationCompletedEvent extends NavigationEvent {
-    isSuccess: boolean;
-    webErrorStatus: number;
+    readonly isSuccess: boolean;
+    readonly webErrorStatus: number;
 }
 
 declare var NavigationCompletedEvent: {
@@ -13210,7 +14425,7 @@ declare var NavigationCompletedEvent: {
 }
 
 interface NavigationEvent extends Event {
-    uri: string;
+    readonly uri: string;
 }
 
 declare var NavigationEvent: {
@@ -13219,7 +14434,7 @@ declare var NavigationEvent: {
 }
 
 interface NavigationEventWithReferrer extends NavigationEvent {
-    referer: string;
+    readonly referer: string;
 }
 
 declare var NavigationEventWithReferrer: {
@@ -13227,27 +14442,22 @@ declare var NavigationEventWithReferrer: {
     new(): NavigationEventWithReferrer;
 }
 
-interface Navigator extends Object, NavigatorID, NavigatorOnLine, NavigatorContentUtils, NavigatorStorageUtils, NavigatorGeolocation, MSNavigatorDoNotTrack, MSFileSaver {
-    appCodeName: string;
-    appMinorVersion: string;
-    browserLanguage: string;
-    connectionSpeed: number;
-    cookieEnabled: boolean;
-    cpuClass: string;
-    language: string;
-    maxTouchPoints: number;
-    mimeTypes: MSMimeTypesCollection;
-    msManipulationViewsEnabled: boolean;
-    msMaxTouchPoints: number;
-    msPointerEnabled: boolean;
-    plugins: MSPluginsCollection;
-    pointerEnabled: boolean;
-    systemLanguage: string;
-    userLanguage: string;
-    webdriver: boolean;
+interface Navigator extends Object, NavigatorID, NavigatorOnLine, NavigatorContentUtils, NavigatorStorageUtils, NavigatorGeolocation, MSNavigatorDoNotTrack, MSFileSaver, NavigatorUserMedia {
+    readonly appCodeName: string;
+    readonly cookieEnabled: boolean;
+    readonly language: string;
+    readonly maxTouchPoints: number;
+    readonly mimeTypes: MimeTypeArray;
+    readonly msManipulationViewsEnabled: boolean;
+    readonly msMaxTouchPoints: number;
+    readonly msPointerEnabled: boolean;
+    readonly plugins: PluginArray;
+    readonly pointerEnabled: boolean;
+    readonly webdriver: boolean;
     getGamepads(): Gamepad[];
     javaEnabled(): boolean;
     msLaunchUri(uri: string, successCallback?: MSLaunchUriCallback, noHandlerCallback?: MSLaunchUriCallback): void;
+    requestMediaKeySystemAccess(keySystem: string, supportedConfigurations: MediaKeySystemConfiguration[]): PromiseLike<MediaKeySystemAccess>;
     vibrate(pattern: number | number[]): boolean;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
@@ -13258,79 +14468,78 @@ declare var Navigator: {
 }
 
 interface Node extends EventTarget {
-    attributes: NamedNodeMap;
-    baseURI: string;
-    childNodes: NodeList;
-    firstChild: Node;
-    lastChild: Node;
-    localName: string;
-    namespaceURI: string;
-    nextSibling: Node;
-    nodeName: string;
-    nodeType: number;
-    nodeValue: string;
-    ownerDocument: Document;
-    parentElement: HTMLElement;
-    parentNode: Node;
-    prefix: string;
-    previousSibling: Node;
-    textContent: string;
+    readonly attributes: NamedNodeMap;
+    readonly baseURI: string | null;
+    readonly childNodes: NodeList;
+    readonly firstChild: Node;
+    readonly lastChild: Node;
+    readonly localName: string | null;
+    readonly namespaceURI: string | null;
+    readonly nextSibling: Node;
+    readonly nodeName: string;
+    readonly nodeType: number;
+    nodeValue: string | null;
+    readonly ownerDocument: Document;
+    readonly parentElement: HTMLElement;
+    readonly parentNode: Node;
+    readonly previousSibling: Node;
+    textContent: string | null;
     appendChild(newChild: Node): Node;
     cloneNode(deep?: boolean): Node;
     compareDocumentPosition(other: Node): number;
+    contains(child: Node): boolean;
     hasAttributes(): boolean;
     hasChildNodes(): boolean;
-    insertBefore(newChild: Node, refChild?: Node): Node;
-    isDefaultNamespace(namespaceURI: string): boolean;
+    insertBefore(newChild: Node, refChild: Node | null): Node;
+    isDefaultNamespace(namespaceURI: string | null): boolean;
     isEqualNode(arg: Node): boolean;
     isSameNode(other: Node): boolean;
-    lookupNamespaceURI(prefix: string): string;
-    lookupPrefix(namespaceURI: string): string;
+    lookupNamespaceURI(prefix: string | null): string | null;
+    lookupPrefix(namespaceURI: string | null): string | null;
     normalize(): void;
     removeChild(oldChild: Node): Node;
     replaceChild(newChild: Node, oldChild: Node): Node;
-    contains(node: Node): boolean;
-    ATTRIBUTE_NODE: number;
-    CDATA_SECTION_NODE: number;
-    COMMENT_NODE: number;
-    DOCUMENT_FRAGMENT_NODE: number;
-    DOCUMENT_NODE: number;
-    DOCUMENT_POSITION_CONTAINED_BY: number;
-    DOCUMENT_POSITION_CONTAINS: number;
-    DOCUMENT_POSITION_DISCONNECTED: number;
-    DOCUMENT_POSITION_FOLLOWING: number;
-    DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC: number;
-    DOCUMENT_POSITION_PRECEDING: number;
-    DOCUMENT_TYPE_NODE: number;
-    ELEMENT_NODE: number;
-    ENTITY_NODE: number;
-    ENTITY_REFERENCE_NODE: number;
-    NOTATION_NODE: number;
-    PROCESSING_INSTRUCTION_NODE: number;
-    TEXT_NODE: number;
+    readonly ATTRIBUTE_NODE: number;
+    readonly CDATA_SECTION_NODE: number;
+    readonly COMMENT_NODE: number;
+    readonly DOCUMENT_FRAGMENT_NODE: number;
+    readonly DOCUMENT_NODE: number;
+    readonly DOCUMENT_POSITION_CONTAINED_BY: number;
+    readonly DOCUMENT_POSITION_CONTAINS: number;
+    readonly DOCUMENT_POSITION_DISCONNECTED: number;
+    readonly DOCUMENT_POSITION_FOLLOWING: number;
+    readonly DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC: number;
+    readonly DOCUMENT_POSITION_PRECEDING: number;
+    readonly DOCUMENT_TYPE_NODE: number;
+    readonly ELEMENT_NODE: number;
+    readonly ENTITY_NODE: number;
+    readonly ENTITY_REFERENCE_NODE: number;
+    readonly NOTATION_NODE: number;
+    readonly PROCESSING_INSTRUCTION_NODE: number;
+    readonly TEXT_NODE: number;
 }
 
 declare var Node: {
     prototype: Node;
     new(): Node;
-    ATTRIBUTE_NODE: number;
-    CDATA_SECTION_NODE: number;
-    COMMENT_NODE: number;
-    DOCUMENT_FRAGMENT_NODE: number;
-    DOCUMENT_NODE: number;
-    DOCUMENT_POSITION_CONTAINED_BY: number;
-    DOCUMENT_POSITION_CONTAINS: number;
-    DOCUMENT_POSITION_DISCONNECTED: number;
-    DOCUMENT_POSITION_FOLLOWING: number;
-    DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC: number;
-    DOCUMENT_POSITION_PRECEDING: number;
-    DOCUMENT_TYPE_NODE: number;
-    ELEMENT_NODE: number;
-    ENTITY_NODE: number;
-    ENTITY_REFERENCE_NODE: number;
-    NOTATION_NODE: number;
-    PROCESSING_INSTRUCTION_NODE: number;
-    TEXT_NODE: number;
+    readonly ATTRIBUTE_NODE: number;
+    readonly CDATA_SECTION_NODE: number;
+    readonly COMMENT_NODE: number;
+    readonly DOCUMENT_FRAGMENT_NODE: number;
+    readonly DOCUMENT_NODE: number;
+    readonly DOCUMENT_POSITION_CONTAINED_BY: number;
+    readonly DOCUMENT_POSITION_CONTAINS: number;
+    readonly DOCUMENT_POSITION_DISCONNECTED: number;
+    readonly DOCUMENT_POSITION_FOLLOWING: number;
+    readonly DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC: number;
+    readonly DOCUMENT_POSITION_PRECEDING: number;
+    readonly DOCUMENT_TYPE_NODE: number;
+    readonly ELEMENT_NODE: number;
+    readonly ENTITY_NODE: number;
+    readonly ENTITY_REFERENCE_NODE: number;
+    readonly NOTATION_NODE: number;
+    readonly PROCESSING_INSTRUCTION_NODE: number;
+    readonly TEXT_NODE: number;
 }
 
 interface NodeFilter {
@@ -13338,29 +14547,29 @@ interface NodeFilter {
 }
 
 declare var NodeFilter: {
-    FILTER_ACCEPT: number;
-    FILTER_REJECT: number;
-    FILTER_SKIP: number;
-    SHOW_ALL: number;
-    SHOW_ATTRIBUTE: number;
-    SHOW_CDATA_SECTION: number;
-    SHOW_COMMENT: number;
-    SHOW_DOCUMENT: number;
-    SHOW_DOCUMENT_FRAGMENT: number;
-    SHOW_DOCUMENT_TYPE: number;
-    SHOW_ELEMENT: number;
-    SHOW_ENTITY: number;
-    SHOW_ENTITY_REFERENCE: number;
-    SHOW_NOTATION: number;
-    SHOW_PROCESSING_INSTRUCTION: number;
-    SHOW_TEXT: number;
+    readonly FILTER_ACCEPT: number;
+    readonly FILTER_REJECT: number;
+    readonly FILTER_SKIP: number;
+    readonly SHOW_ALL: number;
+    readonly SHOW_ATTRIBUTE: number;
+    readonly SHOW_CDATA_SECTION: number;
+    readonly SHOW_COMMENT: number;
+    readonly SHOW_DOCUMENT: number;
+    readonly SHOW_DOCUMENT_FRAGMENT: number;
+    readonly SHOW_DOCUMENT_TYPE: number;
+    readonly SHOW_ELEMENT: number;
+    readonly SHOW_ENTITY: number;
+    readonly SHOW_ENTITY_REFERENCE: number;
+    readonly SHOW_NOTATION: number;
+    readonly SHOW_PROCESSING_INSTRUCTION: number;
+    readonly SHOW_TEXT: number;
 }
 
 interface NodeIterator {
-    expandEntityReferences: boolean;
-    filter: NodeFilter;
-    root: Node;
-    whatToShow: number;
+    readonly expandEntityReferences: boolean;
+    readonly filter: NodeFilter;
+    readonly root: Node;
+    readonly whatToShow: number;
     detach(): void;
     nextNode(): Node;
     previousNode(): Node;
@@ -13372,7 +14581,7 @@ declare var NodeIterator: {
 }
 
 interface NodeList {
-    length: number;
+    readonly length: number;
     item(index: number): Node;
     [index: number]: Node;
 }
@@ -13391,13 +14600,13 @@ declare var OES_element_index_uint: {
 }
 
 interface OES_standard_derivatives {
-    FRAGMENT_SHADER_DERIVATIVE_HINT_OES: number;
+    readonly FRAGMENT_SHADER_DERIVATIVE_HINT_OES: number;
 }
 
 declare var OES_standard_derivatives: {
     prototype: OES_standard_derivatives;
     new(): OES_standard_derivatives;
-    FRAGMENT_SHADER_DERIVATIVE_HINT_OES: number;
+    readonly FRAGMENT_SHADER_DERIVATIVE_HINT_OES: number;
 }
 
 interface OES_texture_float {
@@ -13417,7 +14626,7 @@ declare var OES_texture_float_linear: {
 }
 
 interface OfflineAudioCompletionEvent extends Event {
-    renderedBuffer: AudioBuffer;
+    readonly renderedBuffer: AudioBuffer;
 }
 
 declare var OfflineAudioCompletionEvent: {
@@ -13426,9 +14635,9 @@ declare var OfflineAudioCompletionEvent: {
 }
 
 interface OfflineAudioContext extends AudioContext {
-    oncomplete: (ev: Event) => any;
-    startRendering(): void;
-    addEventListener(type: "complete", listener: (ev: Event) => any, useCapture?: boolean): void;
+    oncomplete: (this: this, ev: Event) => any;
+    startRendering(): PromiseLike<AudioBuffer>;
+    addEventListener(type: "complete", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -13438,14 +14647,14 @@ declare var OfflineAudioContext: {
 }
 
 interface OscillatorNode extends AudioNode {
-    detune: AudioParam;
-    frequency: AudioParam;
-    onended: (ev: Event) => any;
+    readonly detune: AudioParam;
+    readonly frequency: AudioParam;
+    onended: (this: this, ev: MediaStreamErrorEvent) => any;
     type: string;
     setPeriodicWave(periodicWave: PeriodicWave): void;
     start(when?: number): void;
     stop(when?: number): void;
-    addEventListener(type: "ended", listener: (ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -13454,8 +14663,25 @@ declare var OscillatorNode: {
     new(): OscillatorNode;
 }
 
+interface OverflowEvent extends UIEvent {
+    readonly horizontalOverflow: boolean;
+    readonly orient: number;
+    readonly verticalOverflow: boolean;
+    readonly BOTH: number;
+    readonly HORIZONTAL: number;
+    readonly VERTICAL: number;
+}
+
+declare var OverflowEvent: {
+    prototype: OverflowEvent;
+    new(): OverflowEvent;
+    readonly BOTH: number;
+    readonly HORIZONTAL: number;
+    readonly VERTICAL: number;
+}
+
 interface PageTransitionEvent extends Event {
-    persisted: boolean;
+    readonly persisted: boolean;
 }
 
 declare var PageTransitionEvent: {
@@ -13483,24 +14709,24 @@ declare var PannerNode: {
 }
 
 interface PerfWidgetExternal {
-    activeNetworkRequestCount: number;
-    averageFrameTime: number;
-    averagePaintTime: number;
-    extraInformationEnabled: boolean;
-    independentRenderingEnabled: boolean;
-    irDisablingContentString: string;
-    irStatusAvailable: boolean;
-    maxCpuSpeed: number;
-    paintRequestsPerSecond: number;
-    performanceCounter: number;
-    performanceCounterFrequency: number;
+    readonly activeNetworkRequestCount: number;
+    readonly averageFrameTime: number;
+    readonly averagePaintTime: number;
+    readonly extraInformationEnabled: boolean;
+    readonly independentRenderingEnabled: boolean;
+    readonly irDisablingContentString: string;
+    readonly irStatusAvailable: boolean;
+    readonly maxCpuSpeed: number;
+    readonly paintRequestsPerSecond: number;
+    readonly performanceCounter: number;
+    readonly performanceCounterFrequency: number;
     addEventListener(eventType: string, callback: Function): void;
     getMemoryUsage(): number;
     getProcessCpuUsage(): number;
-    getRecentCpuUsage(last: number): any;
-    getRecentFrames(last: number): any;
-    getRecentMemoryUsage(last: number): any;
-    getRecentPaintRequests(last: number): any;
+    getRecentCpuUsage(last: number | null): any;
+    getRecentFrames(last: number | null): any;
+    getRecentMemoryUsage(last: number | null): any;
+    getRecentPaintRequests(last: number | null): any;
     removeEventListener(eventType: string, callback: Function): void;
     repositionWindow(x: number, y: number): void;
     resizeWindow(width: number, height: number): void;
@@ -13512,8 +14738,8 @@ declare var PerfWidgetExternal: {
 }
 
 interface Performance {
-    navigation: PerformanceNavigation;
-    timing: PerformanceTiming;
+    readonly navigation: PerformanceNavigation;
+    readonly timing: PerformanceTiming;
     clearMarks(markName?: string): void;
     clearMeasures(measureName?: string): void;
     clearResourceTimings(): void;
@@ -13535,10 +14761,10 @@ declare var Performance: {
 }
 
 interface PerformanceEntry {
-    duration: number;
-    entryType: string;
-    name: string;
-    startTime: number;
+    readonly duration: number;
+    readonly entryType: string;
+    readonly name: string;
+    readonly startTime: number;
 }
 
 declare var PerformanceEntry: {
@@ -13563,47 +14789,47 @@ declare var PerformanceMeasure: {
 }
 
 interface PerformanceNavigation {
-    redirectCount: number;
-    type: number;
+    readonly redirectCount: number;
+    readonly type: number;
     toJSON(): any;
-    TYPE_BACK_FORWARD: number;
-    TYPE_NAVIGATE: number;
-    TYPE_RELOAD: number;
-    TYPE_RESERVED: number;
+    readonly TYPE_BACK_FORWARD: number;
+    readonly TYPE_NAVIGATE: number;
+    readonly TYPE_RELOAD: number;
+    readonly TYPE_RESERVED: number;
 }
 
 declare var PerformanceNavigation: {
     prototype: PerformanceNavigation;
     new(): PerformanceNavigation;
-    TYPE_BACK_FORWARD: number;
-    TYPE_NAVIGATE: number;
-    TYPE_RELOAD: number;
-    TYPE_RESERVED: number;
+    readonly TYPE_BACK_FORWARD: number;
+    readonly TYPE_NAVIGATE: number;
+    readonly TYPE_RELOAD: number;
+    readonly TYPE_RESERVED: number;
 }
 
 interface PerformanceNavigationTiming extends PerformanceEntry {
-    connectEnd: number;
-    connectStart: number;
-    domComplete: number;
-    domContentLoadedEventEnd: number;
-    domContentLoadedEventStart: number;
-    domInteractive: number;
-    domLoading: number;
-    domainLookupEnd: number;
-    domainLookupStart: number;
-    fetchStart: number;
-    loadEventEnd: number;
-    loadEventStart: number;
-    navigationStart: number;
-    redirectCount: number;
-    redirectEnd: number;
-    redirectStart: number;
-    requestStart: number;
-    responseEnd: number;
-    responseStart: number;
-    type: string;
-    unloadEventEnd: number;
-    unloadEventStart: number;
+    readonly connectEnd: number;
+    readonly connectStart: number;
+    readonly domComplete: number;
+    readonly domContentLoadedEventEnd: number;
+    readonly domContentLoadedEventStart: number;
+    readonly domInteractive: number;
+    readonly domLoading: number;
+    readonly domainLookupEnd: number;
+    readonly domainLookupStart: number;
+    readonly fetchStart: number;
+    readonly loadEventEnd: number;
+    readonly loadEventStart: number;
+    readonly navigationStart: number;
+    readonly redirectCount: number;
+    readonly redirectEnd: number;
+    readonly redirectStart: number;
+    readonly requestStart: number;
+    readonly responseEnd: number;
+    readonly responseStart: number;
+    readonly type: string;
+    readonly unloadEventEnd: number;
+    readonly unloadEventStart: number;
 }
 
 declare var PerformanceNavigationTiming: {
@@ -13612,17 +14838,17 @@ declare var PerformanceNavigationTiming: {
 }
 
 interface PerformanceResourceTiming extends PerformanceEntry {
-    connectEnd: number;
-    connectStart: number;
-    domainLookupEnd: number;
-    domainLookupStart: number;
-    fetchStart: number;
-    initiatorType: string;
-    redirectEnd: number;
-    redirectStart: number;
-    requestStart: number;
-    responseEnd: number;
-    responseStart: number;
+    readonly connectEnd: number;
+    readonly connectStart: number;
+    readonly domainLookupEnd: number;
+    readonly domainLookupStart: number;
+    readonly fetchStart: number;
+    readonly initiatorType: string;
+    readonly redirectEnd: number;
+    readonly redirectStart: number;
+    readonly requestStart: number;
+    readonly responseEnd: number;
+    readonly responseStart: number;
 }
 
 declare var PerformanceResourceTiming: {
@@ -13631,27 +14857,28 @@ declare var PerformanceResourceTiming: {
 }
 
 interface PerformanceTiming {
-    connectEnd: number;
-    connectStart: number;
-    domComplete: number;
-    domContentLoadedEventEnd: number;
-    domContentLoadedEventStart: number;
-    domInteractive: number;
-    domLoading: number;
-    domainLookupEnd: number;
-    domainLookupStart: number;
-    fetchStart: number;
-    loadEventEnd: number;
-    loadEventStart: number;
-    msFirstPaint: number;
-    navigationStart: number;
-    redirectEnd: number;
-    redirectStart: number;
-    requestStart: number;
-    responseEnd: number;
-    responseStart: number;
-    unloadEventEnd: number;
-    unloadEventStart: number;
+    readonly connectEnd: number;
+    readonly connectStart: number;
+    readonly domComplete: number;
+    readonly domContentLoadedEventEnd: number;
+    readonly domContentLoadedEventStart: number;
+    readonly domInteractive: number;
+    readonly domLoading: number;
+    readonly domainLookupEnd: number;
+    readonly domainLookupStart: number;
+    readonly fetchStart: number;
+    readonly loadEventEnd: number;
+    readonly loadEventStart: number;
+    readonly msFirstPaint: number;
+    readonly navigationStart: number;
+    readonly redirectEnd: number;
+    readonly redirectStart: number;
+    readonly requestStart: number;
+    readonly responseEnd: number;
+    readonly responseStart: number;
+    readonly unloadEventEnd: number;
+    readonly unloadEventStart: number;
+    readonly secureConnectionStart: number;
     toJSON(): any;
 }
 
@@ -13669,7 +14896,7 @@ declare var PeriodicWave: {
 }
 
 interface PermissionRequest extends DeferredPermissionRequest {
-    state: string;
+    readonly state: string;
     defer(): void;
 }
 
@@ -13679,7 +14906,7 @@ declare var PermissionRequest: {
 }
 
 interface PermissionRequestedEvent extends Event {
-    permissionRequest: PermissionRequest;
+    readonly permissionRequest: PermissionRequest;
 }
 
 declare var PermissionRequestedEvent: {
@@ -13688,11 +14915,11 @@ declare var PermissionRequestedEvent: {
 }
 
 interface Plugin {
-    description: string;
-    filename: string;
-    length: number;
-    name: string;
-    version: string;
+    readonly description: string;
+    readonly filename: string;
+    readonly length: number;
+    readonly name: string;
+    readonly version: string;
     item(index: number): MimeType;
     namedItem(type: string): MimeType;
     [index: number]: MimeType;
@@ -13704,7 +14931,7 @@ declare var Plugin: {
 }
 
 interface PluginArray {
-    length: number;
+    readonly length: number;
     item(index: number): Plugin;
     namedItem(name: string): Plugin;
     refresh(reload?: boolean): void;
@@ -13717,18 +14944,18 @@ declare var PluginArray: {
 }
 
 interface PointerEvent extends MouseEvent {
-    currentPoint: any;
-    height: number;
-    hwTimestamp: number;
-    intermediatePoints: any;
-    isPrimary: boolean;
-    pointerId: number;
-    pointerType: any;
-    pressure: number;
-    rotation: number;
-    tiltX: number;
-    tiltY: number;
-    width: number;
+    readonly currentPoint: any;
+    readonly height: number;
+    readonly hwTimestamp: number;
+    readonly intermediatePoints: any;
+    readonly isPrimary: boolean;
+    readonly pointerId: number;
+    readonly pointerType: any;
+    readonly pressure: number;
+    readonly rotation: number;
+    readonly tiltX: number;
+    readonly tiltY: number;
+    readonly width: number;
     getCurrentPoint(element: Element): void;
     getIntermediatePoints(element: Element): void;
     initPointerEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, viewArg: Window, detailArg: number, screenXArg: number, screenYArg: number, clientXArg: number, clientYArg: number, ctrlKeyArg: boolean, altKeyArg: boolean, shiftKeyArg: boolean, metaKeyArg: boolean, buttonArg: number, relatedTargetArg: EventTarget, offsetXArg: number, offsetYArg: number, widthArg: number, heightArg: number, pressure: number, rotation: number, tiltX: number, tiltY: number, pointerIdArg: number, pointerType: any, hwTimestampArg: number, isPrimary: boolean): void;
@@ -13740,7 +14967,7 @@ declare var PointerEvent: {
 }
 
 interface PopStateEvent extends Event {
-    state: any;
+    readonly state: any;
     initPopStateEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, stateArg: any): void;
 }
 
@@ -13750,8 +14977,8 @@ declare var PopStateEvent: {
 }
 
 interface Position {
-    coords: Coordinates;
-    timestamp: number;
+    readonly coords: Coordinates;
+    readonly timestamp: number;
 }
 
 declare var Position: {
@@ -13760,24 +14987,24 @@ declare var Position: {
 }
 
 interface PositionError {
-    code: number;
-    message: string;
+    readonly code: number;
+    readonly message: string;
     toString(): string;
-    PERMISSION_DENIED: number;
-    POSITION_UNAVAILABLE: number;
-    TIMEOUT: number;
+    readonly PERMISSION_DENIED: number;
+    readonly POSITION_UNAVAILABLE: number;
+    readonly TIMEOUT: number;
 }
 
 declare var PositionError: {
     prototype: PositionError;
     new(): PositionError;
-    PERMISSION_DENIED: number;
-    POSITION_UNAVAILABLE: number;
-    TIMEOUT: number;
+    readonly PERMISSION_DENIED: number;
+    readonly POSITION_UNAVAILABLE: number;
+    readonly TIMEOUT: number;
 }
 
 interface ProcessingInstruction extends CharacterData {
-    target: string;
+    readonly target: string;
 }
 
 declare var ProcessingInstruction: {
@@ -13786,9 +15013,9 @@ declare var ProcessingInstruction: {
 }
 
 interface ProgressEvent extends Event {
-    lengthComputable: boolean;
-    loaded: number;
-    total: number;
+    readonly lengthComputable: boolean;
+    readonly loaded: number;
+    readonly total: number;
     initProgressEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, lengthComputableArg: boolean, loadedArg: number, totalArg: number): void;
 }
 
@@ -13797,13 +15024,210 @@ declare var ProgressEvent: {
     new(type: string, eventInitDict?: ProgressEventInit): ProgressEvent;
 }
 
+interface RTCDTMFToneChangeEvent extends Event {
+    readonly tone: string;
+}
+
+declare var RTCDTMFToneChangeEvent: {
+    prototype: RTCDTMFToneChangeEvent;
+    new(type: string, eventInitDict: RTCDTMFToneChangeEventInit): RTCDTMFToneChangeEvent;
+}
+
+interface RTCDtlsTransport extends RTCStatsProvider {
+    ondtlsstatechange: ((this: this, ev: RTCDtlsTransportStateChangedEvent) => any) | null;
+    onerror: ((this: this, ev: ErrorEvent) => any) | null;
+    readonly state: string;
+    readonly transport: RTCIceTransport;
+    getLocalParameters(): RTCDtlsParameters;
+    getRemoteCertificates(): ArrayBuffer[];
+    getRemoteParameters(): RTCDtlsParameters | null;
+    start(remoteParameters: RTCDtlsParameters): void;
+    stop(): void;
+    addEventListener(type: "dtlsstatechange", listener: (this: this, ev: RTCDtlsTransportStateChangedEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+}
+
+declare var RTCDtlsTransport: {
+    prototype: RTCDtlsTransport;
+    new(transport: RTCIceTransport): RTCDtlsTransport;
+}
+
+interface RTCDtlsTransportStateChangedEvent extends Event {
+    readonly state: string;
+}
+
+declare var RTCDtlsTransportStateChangedEvent: {
+    prototype: RTCDtlsTransportStateChangedEvent;
+    new(): RTCDtlsTransportStateChangedEvent;
+}
+
+interface RTCDtmfSender extends EventTarget {
+    readonly canInsertDTMF: boolean;
+    readonly duration: number;
+    readonly interToneGap: number;
+    ontonechange: (this: this, ev: RTCDTMFToneChangeEvent) => any;
+    readonly sender: RTCRtpSender;
+    readonly toneBuffer: string;
+    insertDTMF(tones: string, duration?: number, interToneGap?: number): void;
+    addEventListener(type: "tonechange", listener: (this: this, ev: RTCDTMFToneChangeEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+}
+
+declare var RTCDtmfSender: {
+    prototype: RTCDtmfSender;
+    new(sender: RTCRtpSender): RTCDtmfSender;
+}
+
+interface RTCIceCandidatePairChangedEvent extends Event {
+    readonly pair: RTCIceCandidatePair;
+}
+
+declare var RTCIceCandidatePairChangedEvent: {
+    prototype: RTCIceCandidatePairChangedEvent;
+    new(): RTCIceCandidatePairChangedEvent;
+}
+
+interface RTCIceGatherer extends RTCStatsProvider {
+    readonly component: string;
+    onerror: ((this: this, ev: ErrorEvent) => any) | null;
+    onlocalcandidate: ((this: this, ev: RTCIceGathererEvent) => any) | null;
+    createAssociatedGatherer(): RTCIceGatherer;
+    getLocalCandidates(): RTCIceCandidate[];
+    getLocalParameters(): RTCIceParameters;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "localcandidate", listener: (this: this, ev: RTCIceGathererEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+}
+
+declare var RTCIceGatherer: {
+    prototype: RTCIceGatherer;
+    new(options: RTCIceGatherOptions): RTCIceGatherer;
+}
+
+interface RTCIceGathererEvent extends Event {
+    readonly candidate: RTCIceCandidate | RTCIceCandidateComplete;
+}
+
+declare var RTCIceGathererEvent: {
+    prototype: RTCIceGathererEvent;
+    new(): RTCIceGathererEvent;
+}
+
+interface RTCIceTransport extends RTCStatsProvider {
+    readonly component: string;
+    readonly iceGatherer: RTCIceGatherer | null;
+    oncandidatepairchange: ((this: this, ev: RTCIceCandidatePairChangedEvent) => any) | null;
+    onicestatechange: ((this: this, ev: RTCIceTransportStateChangedEvent) => any) | null;
+    readonly role: string;
+    readonly state: string;
+    addRemoteCandidate(remoteCandidate: RTCIceCandidate | RTCIceCandidateComplete): void;
+    createAssociatedTransport(): RTCIceTransport;
+    getNominatedCandidatePair(): RTCIceCandidatePair | null;
+    getRemoteCandidates(): RTCIceCandidate[];
+    getRemoteParameters(): RTCIceParameters | null;
+    setRemoteCandidates(remoteCandidates: RTCIceCandidate[]): void;
+    start(gatherer: RTCIceGatherer, remoteParameters: RTCIceParameters, role?: string): void;
+    stop(): void;
+    addEventListener(type: "candidatepairchange", listener: (this: this, ev: RTCIceCandidatePairChangedEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "icestatechange", listener: (this: this, ev: RTCIceTransportStateChangedEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+}
+
+declare var RTCIceTransport: {
+    prototype: RTCIceTransport;
+    new(): RTCIceTransport;
+}
+
+interface RTCIceTransportStateChangedEvent extends Event {
+    readonly state: string;
+}
+
+declare var RTCIceTransportStateChangedEvent: {
+    prototype: RTCIceTransportStateChangedEvent;
+    new(): RTCIceTransportStateChangedEvent;
+}
+
+interface RTCRtpReceiver extends RTCStatsProvider {
+    onerror: ((this: this, ev: ErrorEvent) => any) | null;
+    readonly rtcpTransport: RTCDtlsTransport;
+    readonly track: MediaStreamTrack | null;
+    readonly transport: RTCDtlsTransport | RTCSrtpSdesTransport;
+    getContributingSources(): RTCRtpContributingSource[];
+    receive(parameters: RTCRtpParameters): void;
+    requestSendCSRC(csrc: number): void;
+    setTransport(transport: RTCDtlsTransport | RTCSrtpSdesTransport, rtcpTransport?: RTCDtlsTransport): void;
+    stop(): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+}
+
+declare var RTCRtpReceiver: {
+    prototype: RTCRtpReceiver;
+    new(transport: RTCDtlsTransport | RTCSrtpSdesTransport, kind: string, rtcpTransport?: RTCDtlsTransport): RTCRtpReceiver;
+    getCapabilities(kind?: string): RTCRtpCapabilities;
+}
+
+interface RTCRtpSender extends RTCStatsProvider {
+    onerror: ((this: this, ev: ErrorEvent) => any) | null;
+    onssrcconflict: ((this: this, ev: RTCSsrcConflictEvent) => any) | null;
+    readonly rtcpTransport: RTCDtlsTransport;
+    readonly track: MediaStreamTrack;
+    readonly transport: RTCDtlsTransport | RTCSrtpSdesTransport;
+    send(parameters: RTCRtpParameters): void;
+    setTrack(track: MediaStreamTrack): void;
+    setTransport(transport: RTCDtlsTransport | RTCSrtpSdesTransport, rtcpTransport?: RTCDtlsTransport): void;
+    stop(): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ssrcconflict", listener: (this: this, ev: RTCSsrcConflictEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+}
+
+declare var RTCRtpSender: {
+    prototype: RTCRtpSender;
+    new(track: MediaStreamTrack, transport: RTCDtlsTransport | RTCSrtpSdesTransport, rtcpTransport?: RTCDtlsTransport): RTCRtpSender;
+    getCapabilities(kind?: string): RTCRtpCapabilities;
+}
+
+interface RTCSrtpSdesTransport extends EventTarget {
+    onerror: ((this: this, ev: ErrorEvent) => any) | null;
+    readonly transport: RTCIceTransport;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+}
+
+declare var RTCSrtpSdesTransport: {
+    prototype: RTCSrtpSdesTransport;
+    new(transport: RTCIceTransport, encryptParameters: RTCSrtpSdesParameters, decryptParameters: RTCSrtpSdesParameters): RTCSrtpSdesTransport;
+    getLocalParameters(): RTCSrtpSdesParameters[];
+}
+
+interface RTCSsrcConflictEvent extends Event {
+    readonly ssrc: number;
+}
+
+declare var RTCSsrcConflictEvent: {
+    prototype: RTCSsrcConflictEvent;
+    new(): RTCSsrcConflictEvent;
+}
+
+interface RTCStatsProvider extends EventTarget {
+    getStats(): PromiseLike<RTCStatsReport>;
+    msGetStats(): PromiseLike<RTCStatsReport>;
+}
+
+declare var RTCStatsProvider: {
+    prototype: RTCStatsProvider;
+    new(): RTCStatsProvider;
+}
+
 interface Range {
-    collapsed: boolean;
-    commonAncestorContainer: Node;
-    endContainer: Node;
-    endOffset: number;
-    startContainer: Node;
-    startOffset: number;
+    readonly collapsed: boolean;
+    readonly commonAncestorContainer: Node;
+    readonly endContainer: Node;
+    readonly endOffset: number;
+    readonly startContainer: Node;
+    readonly startOffset: number;
     cloneContents(): DocumentFragment;
     cloneRange(): Range;
     collapse(toStart: boolean): void;
@@ -13826,23 +15250,23 @@ interface Range {
     setStartBefore(refNode: Node): void;
     surroundContents(newParent: Node): void;
     toString(): string;
-    END_TO_END: number;
-    END_TO_START: number;
-    START_TO_END: number;
-    START_TO_START: number;
+    readonly END_TO_END: number;
+    readonly END_TO_START: number;
+    readonly START_TO_END: number;
+    readonly START_TO_START: number;
 }
 
 declare var Range: {
     prototype: Range;
     new(): Range;
-    END_TO_END: number;
-    END_TO_START: number;
-    START_TO_END: number;
-    START_TO_START: number;
+    readonly END_TO_END: number;
+    readonly END_TO_START: number;
+    readonly START_TO_END: number;
+    readonly START_TO_START: number;
 }
 
 interface SVGAElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGURIReference {
-    target: SVGAnimatedString;
+    readonly target: SVGAnimatedString;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -13852,32 +15276,32 @@ declare var SVGAElement: {
 }
 
 interface SVGAngle {
-    unitType: number;
+    readonly unitType: number;
     value: number;
     valueAsString: string;
     valueInSpecifiedUnits: number;
     convertToSpecifiedUnits(unitType: number): void;
     newValueSpecifiedUnits(unitType: number, valueInSpecifiedUnits: number): void;
-    SVG_ANGLETYPE_DEG: number;
-    SVG_ANGLETYPE_GRAD: number;
-    SVG_ANGLETYPE_RAD: number;
-    SVG_ANGLETYPE_UNKNOWN: number;
-    SVG_ANGLETYPE_UNSPECIFIED: number;
+    readonly SVG_ANGLETYPE_DEG: number;
+    readonly SVG_ANGLETYPE_GRAD: number;
+    readonly SVG_ANGLETYPE_RAD: number;
+    readonly SVG_ANGLETYPE_UNKNOWN: number;
+    readonly SVG_ANGLETYPE_UNSPECIFIED: number;
 }
 
 declare var SVGAngle: {
     prototype: SVGAngle;
     new(): SVGAngle;
-    SVG_ANGLETYPE_DEG: number;
-    SVG_ANGLETYPE_GRAD: number;
-    SVG_ANGLETYPE_RAD: number;
-    SVG_ANGLETYPE_UNKNOWN: number;
-    SVG_ANGLETYPE_UNSPECIFIED: number;
+    readonly SVG_ANGLETYPE_DEG: number;
+    readonly SVG_ANGLETYPE_GRAD: number;
+    readonly SVG_ANGLETYPE_RAD: number;
+    readonly SVG_ANGLETYPE_UNKNOWN: number;
+    readonly SVG_ANGLETYPE_UNSPECIFIED: number;
 }
 
 interface SVGAnimatedAngle {
-    animVal: SVGAngle;
-    baseVal: SVGAngle;
+    readonly animVal: SVGAngle;
+    readonly baseVal: SVGAngle;
 }
 
 declare var SVGAnimatedAngle: {
@@ -13886,7 +15310,7 @@ declare var SVGAnimatedAngle: {
 }
 
 interface SVGAnimatedBoolean {
-    animVal: boolean;
+    readonly animVal: boolean;
     baseVal: boolean;
 }
 
@@ -13896,7 +15320,7 @@ declare var SVGAnimatedBoolean: {
 }
 
 interface SVGAnimatedEnumeration {
-    animVal: number;
+    readonly animVal: number;
     baseVal: number;
 }
 
@@ -13906,7 +15330,7 @@ declare var SVGAnimatedEnumeration: {
 }
 
 interface SVGAnimatedInteger {
-    animVal: number;
+    readonly animVal: number;
     baseVal: number;
 }
 
@@ -13916,8 +15340,8 @@ declare var SVGAnimatedInteger: {
 }
 
 interface SVGAnimatedLength {
-    animVal: SVGLength;
-    baseVal: SVGLength;
+    readonly animVal: SVGLength;
+    readonly baseVal: SVGLength;
 }
 
 declare var SVGAnimatedLength: {
@@ -13926,8 +15350,8 @@ declare var SVGAnimatedLength: {
 }
 
 interface SVGAnimatedLengthList {
-    animVal: SVGLengthList;
-    baseVal: SVGLengthList;
+    readonly animVal: SVGLengthList;
+    readonly baseVal: SVGLengthList;
 }
 
 declare var SVGAnimatedLengthList: {
@@ -13936,7 +15360,7 @@ declare var SVGAnimatedLengthList: {
 }
 
 interface SVGAnimatedNumber {
-    animVal: number;
+    readonly animVal: number;
     baseVal: number;
 }
 
@@ -13946,8 +15370,8 @@ declare var SVGAnimatedNumber: {
 }
 
 interface SVGAnimatedNumberList {
-    animVal: SVGNumberList;
-    baseVal: SVGNumberList;
+    readonly animVal: SVGNumberList;
+    readonly baseVal: SVGNumberList;
 }
 
 declare var SVGAnimatedNumberList: {
@@ -13956,8 +15380,8 @@ declare var SVGAnimatedNumberList: {
 }
 
 interface SVGAnimatedPreserveAspectRatio {
-    animVal: SVGPreserveAspectRatio;
-    baseVal: SVGPreserveAspectRatio;
+    readonly animVal: SVGPreserveAspectRatio;
+    readonly baseVal: SVGPreserveAspectRatio;
 }
 
 declare var SVGAnimatedPreserveAspectRatio: {
@@ -13966,8 +15390,8 @@ declare var SVGAnimatedPreserveAspectRatio: {
 }
 
 interface SVGAnimatedRect {
-    animVal: SVGRect;
-    baseVal: SVGRect;
+    readonly animVal: SVGRect;
+    readonly baseVal: SVGRect;
 }
 
 declare var SVGAnimatedRect: {
@@ -13976,7 +15400,7 @@ declare var SVGAnimatedRect: {
 }
 
 interface SVGAnimatedString {
-    animVal: string;
+    readonly animVal: string;
     baseVal: string;
 }
 
@@ -13986,8 +15410,8 @@ declare var SVGAnimatedString: {
 }
 
 interface SVGAnimatedTransformList {
-    animVal: SVGTransformList;
-    baseVal: SVGTransformList;
+    readonly animVal: SVGTransformList;
+    readonly baseVal: SVGTransformList;
 }
 
 declare var SVGAnimatedTransformList: {
@@ -13996,9 +15420,9 @@ declare var SVGAnimatedTransformList: {
 }
 
 interface SVGCircleElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired {
-    cx: SVGAnimatedLength;
-    cy: SVGAnimatedLength;
-    r: SVGAnimatedLength;
+    readonly cx: SVGAnimatedLength;
+    readonly cy: SVGAnimatedLength;
+    readonly r: SVGAnimatedLength;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -14008,7 +15432,7 @@ declare var SVGCircleElement: {
 }
 
 interface SVGClipPathElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGUnitTypes {
-    clipPathUnits: SVGAnimatedEnumeration;
+    readonly clipPathUnits: SVGAnimatedEnumeration;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -14018,30 +15442,30 @@ declare var SVGClipPathElement: {
 }
 
 interface SVGComponentTransferFunctionElement extends SVGElement {
-    amplitude: SVGAnimatedNumber;
-    exponent: SVGAnimatedNumber;
-    intercept: SVGAnimatedNumber;
-    offset: SVGAnimatedNumber;
-    slope: SVGAnimatedNumber;
-    tableValues: SVGAnimatedNumberList;
-    type: SVGAnimatedEnumeration;
-    SVG_FECOMPONENTTRANSFER_TYPE_DISCRETE: number;
-    SVG_FECOMPONENTTRANSFER_TYPE_GAMMA: number;
-    SVG_FECOMPONENTTRANSFER_TYPE_IDENTITY: number;
-    SVG_FECOMPONENTTRANSFER_TYPE_LINEAR: number;
-    SVG_FECOMPONENTTRANSFER_TYPE_TABLE: number;
-    SVG_FECOMPONENTTRANSFER_TYPE_UNKNOWN: number;
+    readonly amplitude: SVGAnimatedNumber;
+    readonly exponent: SVGAnimatedNumber;
+    readonly intercept: SVGAnimatedNumber;
+    readonly offset: SVGAnimatedNumber;
+    readonly slope: SVGAnimatedNumber;
+    readonly tableValues: SVGAnimatedNumberList;
+    readonly type: SVGAnimatedEnumeration;
+    readonly SVG_FECOMPONENTTRANSFER_TYPE_DISCRETE: number;
+    readonly SVG_FECOMPONENTTRANSFER_TYPE_GAMMA: number;
+    readonly SVG_FECOMPONENTTRANSFER_TYPE_IDENTITY: number;
+    readonly SVG_FECOMPONENTTRANSFER_TYPE_LINEAR: number;
+    readonly SVG_FECOMPONENTTRANSFER_TYPE_TABLE: number;
+    readonly SVG_FECOMPONENTTRANSFER_TYPE_UNKNOWN: number;
 }
 
 declare var SVGComponentTransferFunctionElement: {
     prototype: SVGComponentTransferFunctionElement;
     new(): SVGComponentTransferFunctionElement;
-    SVG_FECOMPONENTTRANSFER_TYPE_DISCRETE: number;
-    SVG_FECOMPONENTTRANSFER_TYPE_GAMMA: number;
-    SVG_FECOMPONENTTRANSFER_TYPE_IDENTITY: number;
-    SVG_FECOMPONENTTRANSFER_TYPE_LINEAR: number;
-    SVG_FECOMPONENTTRANSFER_TYPE_TABLE: number;
-    SVG_FECOMPONENTTRANSFER_TYPE_UNKNOWN: number;
+    readonly SVG_FECOMPONENTTRANSFER_TYPE_DISCRETE: number;
+    readonly SVG_FECOMPONENTTRANSFER_TYPE_GAMMA: number;
+    readonly SVG_FECOMPONENTTRANSFER_TYPE_IDENTITY: number;
+    readonly SVG_FECOMPONENTTRANSFER_TYPE_LINEAR: number;
+    readonly SVG_FECOMPONENTTRANSFER_TYPE_TABLE: number;
+    readonly SVG_FECOMPONENTTRANSFER_TYPE_UNKNOWN: number;
 }
 
 interface SVGDefsElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired {
@@ -14063,67 +15487,66 @@ declare var SVGDescElement: {
 }
 
 interface SVGElement extends Element {
-    id: string;
-    onclick: (ev: MouseEvent) => any;
-    ondblclick: (ev: MouseEvent) => any;
-    onfocusin: (ev: FocusEvent) => any;
-    onfocusout: (ev: FocusEvent) => any;
-    onload: (ev: Event) => any;
-    onmousedown: (ev: MouseEvent) => any;
-    onmousemove: (ev: MouseEvent) => any;
-    onmouseout: (ev: MouseEvent) => any;
-    onmouseover: (ev: MouseEvent) => any;
-    onmouseup: (ev: MouseEvent) => any;
-    ownerSVGElement: SVGSVGElement;
-    viewportElement: SVGElement;
+    onclick: (this: this, ev: MouseEvent) => any;
+    ondblclick: (this: this, ev: MouseEvent) => any;
+    onfocusin: (this: this, ev: FocusEvent) => any;
+    onfocusout: (this: this, ev: FocusEvent) => any;
+    onload: (this: this, ev: Event) => any;
+    onmousedown: (this: this, ev: MouseEvent) => any;
+    onmousemove: (this: this, ev: MouseEvent) => any;
+    onmouseout: (this: this, ev: MouseEvent) => any;
+    onmouseover: (this: this, ev: MouseEvent) => any;
+    onmouseup: (this: this, ev: MouseEvent) => any;
+    readonly ownerSVGElement: SVGSVGElement;
+    readonly viewportElement: SVGElement;
     xmlbase: string;
     className: any;
-    addEventListener(type: "MSGestureChange", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureDoubleTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureEnd", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureHold", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGotPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSInertiaStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSLostPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerCancel", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerDown", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerEnter", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerLeave", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerMove", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOut", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOver", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerUp", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ariarequest", listener: (ev: AriaRequestEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "click", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "command", listener: (ev: CommandEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dblclick", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "focusin", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "focusout", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "gotpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "lostpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousedown", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousemove", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseout", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseover", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseup", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointercancel", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerdown", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerenter", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerleave", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointermove", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerout", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerover", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerup", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchcancel", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchend", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchmove", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchstart", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenerror", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "wheel", listener: (ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "focusin", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "focusout", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -14133,14 +15556,14 @@ declare var SVGElement: {
 }
 
 interface SVGElementInstance extends EventTarget {
-    childNodes: SVGElementInstanceList;
-    correspondingElement: SVGElement;
-    correspondingUseElement: SVGUseElement;
-    firstChild: SVGElementInstance;
-    lastChild: SVGElementInstance;
-    nextSibling: SVGElementInstance;
-    parentNode: SVGElementInstance;
-    previousSibling: SVGElementInstance;
+    readonly childNodes: SVGElementInstanceList;
+    readonly correspondingElement: SVGElement;
+    readonly correspondingUseElement: SVGUseElement;
+    readonly firstChild: SVGElementInstance;
+    readonly lastChild: SVGElementInstance;
+    readonly nextSibling: SVGElementInstance;
+    readonly parentNode: SVGElementInstance;
+    readonly previousSibling: SVGElementInstance;
 }
 
 declare var SVGElementInstance: {
@@ -14149,7 +15572,7 @@ declare var SVGElementInstance: {
 }
 
 interface SVGElementInstanceList {
-    length: number;
+    readonly length: number;
     item(index: number): SVGElementInstance;
 }
 
@@ -14159,10 +15582,10 @@ declare var SVGElementInstanceList: {
 }
 
 interface SVGEllipseElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired {
-    cx: SVGAnimatedLength;
-    cy: SVGAnimatedLength;
-    rx: SVGAnimatedLength;
-    ry: SVGAnimatedLength;
+    readonly cx: SVGAnimatedLength;
+    readonly cy: SVGAnimatedLength;
+    readonly rx: SVGAnimatedLength;
+    readonly ry: SVGAnimatedLength;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -14172,75 +15595,75 @@ declare var SVGEllipseElement: {
 }
 
 interface SVGFEBlendElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
-    in1: SVGAnimatedString;
-    in2: SVGAnimatedString;
-    mode: SVGAnimatedEnumeration;
-    SVG_FEBLEND_MODE_COLOR: number;
-    SVG_FEBLEND_MODE_COLOR_BURN: number;
-    SVG_FEBLEND_MODE_COLOR_DODGE: number;
-    SVG_FEBLEND_MODE_DARKEN: number;
-    SVG_FEBLEND_MODE_DIFFERENCE: number;
-    SVG_FEBLEND_MODE_EXCLUSION: number;
-    SVG_FEBLEND_MODE_HARD_LIGHT: number;
-    SVG_FEBLEND_MODE_HUE: number;
-    SVG_FEBLEND_MODE_LIGHTEN: number;
-    SVG_FEBLEND_MODE_LUMINOSITY: number;
-    SVG_FEBLEND_MODE_MULTIPLY: number;
-    SVG_FEBLEND_MODE_NORMAL: number;
-    SVG_FEBLEND_MODE_OVERLAY: number;
-    SVG_FEBLEND_MODE_SATURATION: number;
-    SVG_FEBLEND_MODE_SCREEN: number;
-    SVG_FEBLEND_MODE_SOFT_LIGHT: number;
-    SVG_FEBLEND_MODE_UNKNOWN: number;
+    readonly in1: SVGAnimatedString;
+    readonly in2: SVGAnimatedString;
+    readonly mode: SVGAnimatedEnumeration;
+    readonly SVG_FEBLEND_MODE_COLOR: number;
+    readonly SVG_FEBLEND_MODE_COLOR_BURN: number;
+    readonly SVG_FEBLEND_MODE_COLOR_DODGE: number;
+    readonly SVG_FEBLEND_MODE_DARKEN: number;
+    readonly SVG_FEBLEND_MODE_DIFFERENCE: number;
+    readonly SVG_FEBLEND_MODE_EXCLUSION: number;
+    readonly SVG_FEBLEND_MODE_HARD_LIGHT: number;
+    readonly SVG_FEBLEND_MODE_HUE: number;
+    readonly SVG_FEBLEND_MODE_LIGHTEN: number;
+    readonly SVG_FEBLEND_MODE_LUMINOSITY: number;
+    readonly SVG_FEBLEND_MODE_MULTIPLY: number;
+    readonly SVG_FEBLEND_MODE_NORMAL: number;
+    readonly SVG_FEBLEND_MODE_OVERLAY: number;
+    readonly SVG_FEBLEND_MODE_SATURATION: number;
+    readonly SVG_FEBLEND_MODE_SCREEN: number;
+    readonly SVG_FEBLEND_MODE_SOFT_LIGHT: number;
+    readonly SVG_FEBLEND_MODE_UNKNOWN: number;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var SVGFEBlendElement: {
     prototype: SVGFEBlendElement;
     new(): SVGFEBlendElement;
-    SVG_FEBLEND_MODE_COLOR: number;
-    SVG_FEBLEND_MODE_COLOR_BURN: number;
-    SVG_FEBLEND_MODE_COLOR_DODGE: number;
-    SVG_FEBLEND_MODE_DARKEN: number;
-    SVG_FEBLEND_MODE_DIFFERENCE: number;
-    SVG_FEBLEND_MODE_EXCLUSION: number;
-    SVG_FEBLEND_MODE_HARD_LIGHT: number;
-    SVG_FEBLEND_MODE_HUE: number;
-    SVG_FEBLEND_MODE_LIGHTEN: number;
-    SVG_FEBLEND_MODE_LUMINOSITY: number;
-    SVG_FEBLEND_MODE_MULTIPLY: number;
-    SVG_FEBLEND_MODE_NORMAL: number;
-    SVG_FEBLEND_MODE_OVERLAY: number;
-    SVG_FEBLEND_MODE_SATURATION: number;
-    SVG_FEBLEND_MODE_SCREEN: number;
-    SVG_FEBLEND_MODE_SOFT_LIGHT: number;
-    SVG_FEBLEND_MODE_UNKNOWN: number;
+    readonly SVG_FEBLEND_MODE_COLOR: number;
+    readonly SVG_FEBLEND_MODE_COLOR_BURN: number;
+    readonly SVG_FEBLEND_MODE_COLOR_DODGE: number;
+    readonly SVG_FEBLEND_MODE_DARKEN: number;
+    readonly SVG_FEBLEND_MODE_DIFFERENCE: number;
+    readonly SVG_FEBLEND_MODE_EXCLUSION: number;
+    readonly SVG_FEBLEND_MODE_HARD_LIGHT: number;
+    readonly SVG_FEBLEND_MODE_HUE: number;
+    readonly SVG_FEBLEND_MODE_LIGHTEN: number;
+    readonly SVG_FEBLEND_MODE_LUMINOSITY: number;
+    readonly SVG_FEBLEND_MODE_MULTIPLY: number;
+    readonly SVG_FEBLEND_MODE_NORMAL: number;
+    readonly SVG_FEBLEND_MODE_OVERLAY: number;
+    readonly SVG_FEBLEND_MODE_SATURATION: number;
+    readonly SVG_FEBLEND_MODE_SCREEN: number;
+    readonly SVG_FEBLEND_MODE_SOFT_LIGHT: number;
+    readonly SVG_FEBLEND_MODE_UNKNOWN: number;
 }
 
 interface SVGFEColorMatrixElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
-    in1: SVGAnimatedString;
-    type: SVGAnimatedEnumeration;
-    values: SVGAnimatedNumberList;
-    SVG_FECOLORMATRIX_TYPE_HUEROTATE: number;
-    SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA: number;
-    SVG_FECOLORMATRIX_TYPE_MATRIX: number;
-    SVG_FECOLORMATRIX_TYPE_SATURATE: number;
-    SVG_FECOLORMATRIX_TYPE_UNKNOWN: number;
+    readonly in1: SVGAnimatedString;
+    readonly type: SVGAnimatedEnumeration;
+    readonly values: SVGAnimatedNumberList;
+    readonly SVG_FECOLORMATRIX_TYPE_HUEROTATE: number;
+    readonly SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA: number;
+    readonly SVG_FECOLORMATRIX_TYPE_MATRIX: number;
+    readonly SVG_FECOLORMATRIX_TYPE_SATURATE: number;
+    readonly SVG_FECOLORMATRIX_TYPE_UNKNOWN: number;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var SVGFEColorMatrixElement: {
     prototype: SVGFEColorMatrixElement;
     new(): SVGFEColorMatrixElement;
-    SVG_FECOLORMATRIX_TYPE_HUEROTATE: number;
-    SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA: number;
-    SVG_FECOLORMATRIX_TYPE_MATRIX: number;
-    SVG_FECOLORMATRIX_TYPE_SATURATE: number;
-    SVG_FECOLORMATRIX_TYPE_UNKNOWN: number;
+    readonly SVG_FECOLORMATRIX_TYPE_HUEROTATE: number;
+    readonly SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA: number;
+    readonly SVG_FECOLORMATRIX_TYPE_MATRIX: number;
+    readonly SVG_FECOLORMATRIX_TYPE_SATURATE: number;
+    readonly SVG_FECOLORMATRIX_TYPE_UNKNOWN: number;
 }
 
 interface SVGFEComponentTransferElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
-    in1: SVGAnimatedString;
+    readonly in1: SVGAnimatedString;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -14250,70 +15673,70 @@ declare var SVGFEComponentTransferElement: {
 }
 
 interface SVGFECompositeElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
-    in1: SVGAnimatedString;
-    in2: SVGAnimatedString;
-    k1: SVGAnimatedNumber;
-    k2: SVGAnimatedNumber;
-    k3: SVGAnimatedNumber;
-    k4: SVGAnimatedNumber;
-    operator: SVGAnimatedEnumeration;
-    SVG_FECOMPOSITE_OPERATOR_ARITHMETIC: number;
-    SVG_FECOMPOSITE_OPERATOR_ATOP: number;
-    SVG_FECOMPOSITE_OPERATOR_IN: number;
-    SVG_FECOMPOSITE_OPERATOR_OUT: number;
-    SVG_FECOMPOSITE_OPERATOR_OVER: number;
-    SVG_FECOMPOSITE_OPERATOR_UNKNOWN: number;
-    SVG_FECOMPOSITE_OPERATOR_XOR: number;
+    readonly in1: SVGAnimatedString;
+    readonly in2: SVGAnimatedString;
+    readonly k1: SVGAnimatedNumber;
+    readonly k2: SVGAnimatedNumber;
+    readonly k3: SVGAnimatedNumber;
+    readonly k4: SVGAnimatedNumber;
+    readonly operator: SVGAnimatedEnumeration;
+    readonly SVG_FECOMPOSITE_OPERATOR_ARITHMETIC: number;
+    readonly SVG_FECOMPOSITE_OPERATOR_ATOP: number;
+    readonly SVG_FECOMPOSITE_OPERATOR_IN: number;
+    readonly SVG_FECOMPOSITE_OPERATOR_OUT: number;
+    readonly SVG_FECOMPOSITE_OPERATOR_OVER: number;
+    readonly SVG_FECOMPOSITE_OPERATOR_UNKNOWN: number;
+    readonly SVG_FECOMPOSITE_OPERATOR_XOR: number;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var SVGFECompositeElement: {
     prototype: SVGFECompositeElement;
     new(): SVGFECompositeElement;
-    SVG_FECOMPOSITE_OPERATOR_ARITHMETIC: number;
-    SVG_FECOMPOSITE_OPERATOR_ATOP: number;
-    SVG_FECOMPOSITE_OPERATOR_IN: number;
-    SVG_FECOMPOSITE_OPERATOR_OUT: number;
-    SVG_FECOMPOSITE_OPERATOR_OVER: number;
-    SVG_FECOMPOSITE_OPERATOR_UNKNOWN: number;
-    SVG_FECOMPOSITE_OPERATOR_XOR: number;
+    readonly SVG_FECOMPOSITE_OPERATOR_ARITHMETIC: number;
+    readonly SVG_FECOMPOSITE_OPERATOR_ATOP: number;
+    readonly SVG_FECOMPOSITE_OPERATOR_IN: number;
+    readonly SVG_FECOMPOSITE_OPERATOR_OUT: number;
+    readonly SVG_FECOMPOSITE_OPERATOR_OVER: number;
+    readonly SVG_FECOMPOSITE_OPERATOR_UNKNOWN: number;
+    readonly SVG_FECOMPOSITE_OPERATOR_XOR: number;
 }
 
 interface SVGFEConvolveMatrixElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
-    bias: SVGAnimatedNumber;
-    divisor: SVGAnimatedNumber;
-    edgeMode: SVGAnimatedEnumeration;
-    in1: SVGAnimatedString;
-    kernelMatrix: SVGAnimatedNumberList;
-    kernelUnitLengthX: SVGAnimatedNumber;
-    kernelUnitLengthY: SVGAnimatedNumber;
-    orderX: SVGAnimatedInteger;
-    orderY: SVGAnimatedInteger;
-    preserveAlpha: SVGAnimatedBoolean;
-    targetX: SVGAnimatedInteger;
-    targetY: SVGAnimatedInteger;
-    SVG_EDGEMODE_DUPLICATE: number;
-    SVG_EDGEMODE_NONE: number;
-    SVG_EDGEMODE_UNKNOWN: number;
-    SVG_EDGEMODE_WRAP: number;
+    readonly bias: SVGAnimatedNumber;
+    readonly divisor: SVGAnimatedNumber;
+    readonly edgeMode: SVGAnimatedEnumeration;
+    readonly in1: SVGAnimatedString;
+    readonly kernelMatrix: SVGAnimatedNumberList;
+    readonly kernelUnitLengthX: SVGAnimatedNumber;
+    readonly kernelUnitLengthY: SVGAnimatedNumber;
+    readonly orderX: SVGAnimatedInteger;
+    readonly orderY: SVGAnimatedInteger;
+    readonly preserveAlpha: SVGAnimatedBoolean;
+    readonly targetX: SVGAnimatedInteger;
+    readonly targetY: SVGAnimatedInteger;
+    readonly SVG_EDGEMODE_DUPLICATE: number;
+    readonly SVG_EDGEMODE_NONE: number;
+    readonly SVG_EDGEMODE_UNKNOWN: number;
+    readonly SVG_EDGEMODE_WRAP: number;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var SVGFEConvolveMatrixElement: {
     prototype: SVGFEConvolveMatrixElement;
     new(): SVGFEConvolveMatrixElement;
-    SVG_EDGEMODE_DUPLICATE: number;
-    SVG_EDGEMODE_NONE: number;
-    SVG_EDGEMODE_UNKNOWN: number;
-    SVG_EDGEMODE_WRAP: number;
+    readonly SVG_EDGEMODE_DUPLICATE: number;
+    readonly SVG_EDGEMODE_NONE: number;
+    readonly SVG_EDGEMODE_UNKNOWN: number;
+    readonly SVG_EDGEMODE_WRAP: number;
 }
 
 interface SVGFEDiffuseLightingElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
-    diffuseConstant: SVGAnimatedNumber;
-    in1: SVGAnimatedString;
-    kernelUnitLengthX: SVGAnimatedNumber;
-    kernelUnitLengthY: SVGAnimatedNumber;
-    surfaceScale: SVGAnimatedNumber;
+    readonly diffuseConstant: SVGAnimatedNumber;
+    readonly in1: SVGAnimatedString;
+    readonly kernelUnitLengthX: SVGAnimatedNumber;
+    readonly kernelUnitLengthY: SVGAnimatedNumber;
+    readonly surfaceScale: SVGAnimatedNumber;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -14323,32 +15746,32 @@ declare var SVGFEDiffuseLightingElement: {
 }
 
 interface SVGFEDisplacementMapElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
-    in1: SVGAnimatedString;
-    in2: SVGAnimatedString;
-    scale: SVGAnimatedNumber;
-    xChannelSelector: SVGAnimatedEnumeration;
-    yChannelSelector: SVGAnimatedEnumeration;
-    SVG_CHANNEL_A: number;
-    SVG_CHANNEL_B: number;
-    SVG_CHANNEL_G: number;
-    SVG_CHANNEL_R: number;
-    SVG_CHANNEL_UNKNOWN: number;
+    readonly in1: SVGAnimatedString;
+    readonly in2: SVGAnimatedString;
+    readonly scale: SVGAnimatedNumber;
+    readonly xChannelSelector: SVGAnimatedEnumeration;
+    readonly yChannelSelector: SVGAnimatedEnumeration;
+    readonly SVG_CHANNEL_A: number;
+    readonly SVG_CHANNEL_B: number;
+    readonly SVG_CHANNEL_G: number;
+    readonly SVG_CHANNEL_R: number;
+    readonly SVG_CHANNEL_UNKNOWN: number;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var SVGFEDisplacementMapElement: {
     prototype: SVGFEDisplacementMapElement;
     new(): SVGFEDisplacementMapElement;
-    SVG_CHANNEL_A: number;
-    SVG_CHANNEL_B: number;
-    SVG_CHANNEL_G: number;
-    SVG_CHANNEL_R: number;
-    SVG_CHANNEL_UNKNOWN: number;
+    readonly SVG_CHANNEL_A: number;
+    readonly SVG_CHANNEL_B: number;
+    readonly SVG_CHANNEL_G: number;
+    readonly SVG_CHANNEL_R: number;
+    readonly SVG_CHANNEL_UNKNOWN: number;
 }
 
 interface SVGFEDistantLightElement extends SVGElement {
-    azimuth: SVGAnimatedNumber;
-    elevation: SVGAnimatedNumber;
+    readonly azimuth: SVGAnimatedNumber;
+    readonly elevation: SVGAnimatedNumber;
 }
 
 declare var SVGFEDistantLightElement: {
@@ -14398,9 +15821,9 @@ declare var SVGFEFuncRElement: {
 }
 
 interface SVGFEGaussianBlurElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
-    in1: SVGAnimatedString;
-    stdDeviationX: SVGAnimatedNumber;
-    stdDeviationY: SVGAnimatedNumber;
+    readonly in1: SVGAnimatedString;
+    readonly stdDeviationX: SVGAnimatedNumber;
+    readonly stdDeviationY: SVGAnimatedNumber;
     setStdDeviation(stdDeviationX: number, stdDeviationY: number): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
@@ -14411,7 +15834,7 @@ declare var SVGFEGaussianBlurElement: {
 }
 
 interface SVGFEImageElement extends SVGElement, SVGFilterPrimitiveStandardAttributes, SVGLangSpace, SVGURIReference, SVGExternalResourcesRequired {
-    preserveAspectRatio: SVGAnimatedPreserveAspectRatio;
+    readonly preserveAspectRatio: SVGAnimatedPreserveAspectRatio;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -14430,7 +15853,7 @@ declare var SVGFEMergeElement: {
 }
 
 interface SVGFEMergeNodeElement extends SVGElement {
-    in1: SVGAnimatedString;
+    readonly in1: SVGAnimatedString;
 }
 
 declare var SVGFEMergeNodeElement: {
@@ -14439,28 +15862,28 @@ declare var SVGFEMergeNodeElement: {
 }
 
 interface SVGFEMorphologyElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
-    in1: SVGAnimatedString;
-    operator: SVGAnimatedEnumeration;
-    radiusX: SVGAnimatedNumber;
-    radiusY: SVGAnimatedNumber;
-    SVG_MORPHOLOGY_OPERATOR_DILATE: number;
-    SVG_MORPHOLOGY_OPERATOR_ERODE: number;
-    SVG_MORPHOLOGY_OPERATOR_UNKNOWN: number;
+    readonly in1: SVGAnimatedString;
+    readonly operator: SVGAnimatedEnumeration;
+    readonly radiusX: SVGAnimatedNumber;
+    readonly radiusY: SVGAnimatedNumber;
+    readonly SVG_MORPHOLOGY_OPERATOR_DILATE: number;
+    readonly SVG_MORPHOLOGY_OPERATOR_ERODE: number;
+    readonly SVG_MORPHOLOGY_OPERATOR_UNKNOWN: number;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var SVGFEMorphologyElement: {
     prototype: SVGFEMorphologyElement;
     new(): SVGFEMorphologyElement;
-    SVG_MORPHOLOGY_OPERATOR_DILATE: number;
-    SVG_MORPHOLOGY_OPERATOR_ERODE: number;
-    SVG_MORPHOLOGY_OPERATOR_UNKNOWN: number;
+    readonly SVG_MORPHOLOGY_OPERATOR_DILATE: number;
+    readonly SVG_MORPHOLOGY_OPERATOR_ERODE: number;
+    readonly SVG_MORPHOLOGY_OPERATOR_UNKNOWN: number;
 }
 
 interface SVGFEOffsetElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
-    dx: SVGAnimatedNumber;
-    dy: SVGAnimatedNumber;
-    in1: SVGAnimatedString;
+    readonly dx: SVGAnimatedNumber;
+    readonly dy: SVGAnimatedNumber;
+    readonly in1: SVGAnimatedString;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -14470,9 +15893,9 @@ declare var SVGFEOffsetElement: {
 }
 
 interface SVGFEPointLightElement extends SVGElement {
-    x: SVGAnimatedNumber;
-    y: SVGAnimatedNumber;
-    z: SVGAnimatedNumber;
+    readonly x: SVGAnimatedNumber;
+    readonly y: SVGAnimatedNumber;
+    readonly z: SVGAnimatedNumber;
 }
 
 declare var SVGFEPointLightElement: {
@@ -14481,12 +15904,12 @@ declare var SVGFEPointLightElement: {
 }
 
 interface SVGFESpecularLightingElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
-    in1: SVGAnimatedString;
-    kernelUnitLengthX: SVGAnimatedNumber;
-    kernelUnitLengthY: SVGAnimatedNumber;
-    specularConstant: SVGAnimatedNumber;
-    specularExponent: SVGAnimatedNumber;
-    surfaceScale: SVGAnimatedNumber;
+    readonly in1: SVGAnimatedString;
+    readonly kernelUnitLengthX: SVGAnimatedNumber;
+    readonly kernelUnitLengthY: SVGAnimatedNumber;
+    readonly specularConstant: SVGAnimatedNumber;
+    readonly specularExponent: SVGAnimatedNumber;
+    readonly surfaceScale: SVGAnimatedNumber;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -14496,14 +15919,14 @@ declare var SVGFESpecularLightingElement: {
 }
 
 interface SVGFESpotLightElement extends SVGElement {
-    limitingConeAngle: SVGAnimatedNumber;
-    pointsAtX: SVGAnimatedNumber;
-    pointsAtY: SVGAnimatedNumber;
-    pointsAtZ: SVGAnimatedNumber;
-    specularExponent: SVGAnimatedNumber;
-    x: SVGAnimatedNumber;
-    y: SVGAnimatedNumber;
-    z: SVGAnimatedNumber;
+    readonly limitingConeAngle: SVGAnimatedNumber;
+    readonly pointsAtX: SVGAnimatedNumber;
+    readonly pointsAtY: SVGAnimatedNumber;
+    readonly pointsAtZ: SVGAnimatedNumber;
+    readonly specularExponent: SVGAnimatedNumber;
+    readonly x: SVGAnimatedNumber;
+    readonly y: SVGAnimatedNumber;
+    readonly z: SVGAnimatedNumber;
 }
 
 declare var SVGFESpotLightElement: {
@@ -14512,7 +15935,7 @@ declare var SVGFESpotLightElement: {
 }
 
 interface SVGFETileElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
-    in1: SVGAnimatedString;
+    readonly in1: SVGAnimatedString;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -14522,41 +15945,41 @@ declare var SVGFETileElement: {
 }
 
 interface SVGFETurbulenceElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
-    baseFrequencyX: SVGAnimatedNumber;
-    baseFrequencyY: SVGAnimatedNumber;
-    numOctaves: SVGAnimatedInteger;
-    seed: SVGAnimatedNumber;
-    stitchTiles: SVGAnimatedEnumeration;
-    type: SVGAnimatedEnumeration;
-    SVG_STITCHTYPE_NOSTITCH: number;
-    SVG_STITCHTYPE_STITCH: number;
-    SVG_STITCHTYPE_UNKNOWN: number;
-    SVG_TURBULENCE_TYPE_FRACTALNOISE: number;
-    SVG_TURBULENCE_TYPE_TURBULENCE: number;
-    SVG_TURBULENCE_TYPE_UNKNOWN: number;
+    readonly baseFrequencyX: SVGAnimatedNumber;
+    readonly baseFrequencyY: SVGAnimatedNumber;
+    readonly numOctaves: SVGAnimatedInteger;
+    readonly seed: SVGAnimatedNumber;
+    readonly stitchTiles: SVGAnimatedEnumeration;
+    readonly type: SVGAnimatedEnumeration;
+    readonly SVG_STITCHTYPE_NOSTITCH: number;
+    readonly SVG_STITCHTYPE_STITCH: number;
+    readonly SVG_STITCHTYPE_UNKNOWN: number;
+    readonly SVG_TURBULENCE_TYPE_FRACTALNOISE: number;
+    readonly SVG_TURBULENCE_TYPE_TURBULENCE: number;
+    readonly SVG_TURBULENCE_TYPE_UNKNOWN: number;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var SVGFETurbulenceElement: {
     prototype: SVGFETurbulenceElement;
     new(): SVGFETurbulenceElement;
-    SVG_STITCHTYPE_NOSTITCH: number;
-    SVG_STITCHTYPE_STITCH: number;
-    SVG_STITCHTYPE_UNKNOWN: number;
-    SVG_TURBULENCE_TYPE_FRACTALNOISE: number;
-    SVG_TURBULENCE_TYPE_TURBULENCE: number;
-    SVG_TURBULENCE_TYPE_UNKNOWN: number;
+    readonly SVG_STITCHTYPE_NOSTITCH: number;
+    readonly SVG_STITCHTYPE_STITCH: number;
+    readonly SVG_STITCHTYPE_UNKNOWN: number;
+    readonly SVG_TURBULENCE_TYPE_FRACTALNOISE: number;
+    readonly SVG_TURBULENCE_TYPE_TURBULENCE: number;
+    readonly SVG_TURBULENCE_TYPE_UNKNOWN: number;
 }
 
 interface SVGFilterElement extends SVGElement, SVGUnitTypes, SVGStylable, SVGLangSpace, SVGURIReference, SVGExternalResourcesRequired {
-    filterResX: SVGAnimatedInteger;
-    filterResY: SVGAnimatedInteger;
-    filterUnits: SVGAnimatedEnumeration;
-    height: SVGAnimatedLength;
-    primitiveUnits: SVGAnimatedEnumeration;
-    width: SVGAnimatedLength;
-    x: SVGAnimatedLength;
-    y: SVGAnimatedLength;
+    readonly filterResX: SVGAnimatedInteger;
+    readonly filterResY: SVGAnimatedInteger;
+    readonly filterUnits: SVGAnimatedEnumeration;
+    readonly height: SVGAnimatedLength;
+    readonly primitiveUnits: SVGAnimatedEnumeration;
+    readonly width: SVGAnimatedLength;
+    readonly x: SVGAnimatedLength;
+    readonly y: SVGAnimatedLength;
     setFilterRes(filterResX: number, filterResY: number): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
@@ -14567,10 +15990,10 @@ declare var SVGFilterElement: {
 }
 
 interface SVGForeignObjectElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired {
-    height: SVGAnimatedLength;
-    width: SVGAnimatedLength;
-    x: SVGAnimatedLength;
-    y: SVGAnimatedLength;
+    readonly height: SVGAnimatedLength;
+    readonly width: SVGAnimatedLength;
+    readonly x: SVGAnimatedLength;
+    readonly y: SVGAnimatedLength;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -14589,31 +16012,31 @@ declare var SVGGElement: {
 }
 
 interface SVGGradientElement extends SVGElement, SVGStylable, SVGExternalResourcesRequired, SVGURIReference, SVGUnitTypes {
-    gradientTransform: SVGAnimatedTransformList;
-    gradientUnits: SVGAnimatedEnumeration;
-    spreadMethod: SVGAnimatedEnumeration;
-    SVG_SPREADMETHOD_PAD: number;
-    SVG_SPREADMETHOD_REFLECT: number;
-    SVG_SPREADMETHOD_REPEAT: number;
-    SVG_SPREADMETHOD_UNKNOWN: number;
+    readonly gradientTransform: SVGAnimatedTransformList;
+    readonly gradientUnits: SVGAnimatedEnumeration;
+    readonly spreadMethod: SVGAnimatedEnumeration;
+    readonly SVG_SPREADMETHOD_PAD: number;
+    readonly SVG_SPREADMETHOD_REFLECT: number;
+    readonly SVG_SPREADMETHOD_REPEAT: number;
+    readonly SVG_SPREADMETHOD_UNKNOWN: number;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var SVGGradientElement: {
     prototype: SVGGradientElement;
     new(): SVGGradientElement;
-    SVG_SPREADMETHOD_PAD: number;
-    SVG_SPREADMETHOD_REFLECT: number;
-    SVG_SPREADMETHOD_REPEAT: number;
-    SVG_SPREADMETHOD_UNKNOWN: number;
+    readonly SVG_SPREADMETHOD_PAD: number;
+    readonly SVG_SPREADMETHOD_REFLECT: number;
+    readonly SVG_SPREADMETHOD_REPEAT: number;
+    readonly SVG_SPREADMETHOD_UNKNOWN: number;
 }
 
 interface SVGImageElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGURIReference {
-    height: SVGAnimatedLength;
-    preserveAspectRatio: SVGAnimatedPreserveAspectRatio;
-    width: SVGAnimatedLength;
-    x: SVGAnimatedLength;
-    y: SVGAnimatedLength;
+    readonly height: SVGAnimatedLength;
+    readonly preserveAspectRatio: SVGAnimatedPreserveAspectRatio;
+    readonly width: SVGAnimatedLength;
+    readonly x: SVGAnimatedLength;
+    readonly y: SVGAnimatedLength;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -14623,43 +16046,43 @@ declare var SVGImageElement: {
 }
 
 interface SVGLength {
-    unitType: number;
+    readonly unitType: number;
     value: number;
     valueAsString: string;
     valueInSpecifiedUnits: number;
     convertToSpecifiedUnits(unitType: number): void;
     newValueSpecifiedUnits(unitType: number, valueInSpecifiedUnits: number): void;
-    SVG_LENGTHTYPE_CM: number;
-    SVG_LENGTHTYPE_EMS: number;
-    SVG_LENGTHTYPE_EXS: number;
-    SVG_LENGTHTYPE_IN: number;
-    SVG_LENGTHTYPE_MM: number;
-    SVG_LENGTHTYPE_NUMBER: number;
-    SVG_LENGTHTYPE_PC: number;
-    SVG_LENGTHTYPE_PERCENTAGE: number;
-    SVG_LENGTHTYPE_PT: number;
-    SVG_LENGTHTYPE_PX: number;
-    SVG_LENGTHTYPE_UNKNOWN: number;
+    readonly SVG_LENGTHTYPE_CM: number;
+    readonly SVG_LENGTHTYPE_EMS: number;
+    readonly SVG_LENGTHTYPE_EXS: number;
+    readonly SVG_LENGTHTYPE_IN: number;
+    readonly SVG_LENGTHTYPE_MM: number;
+    readonly SVG_LENGTHTYPE_NUMBER: number;
+    readonly SVG_LENGTHTYPE_PC: number;
+    readonly SVG_LENGTHTYPE_PERCENTAGE: number;
+    readonly SVG_LENGTHTYPE_PT: number;
+    readonly SVG_LENGTHTYPE_PX: number;
+    readonly SVG_LENGTHTYPE_UNKNOWN: number;
 }
 
 declare var SVGLength: {
     prototype: SVGLength;
     new(): SVGLength;
-    SVG_LENGTHTYPE_CM: number;
-    SVG_LENGTHTYPE_EMS: number;
-    SVG_LENGTHTYPE_EXS: number;
-    SVG_LENGTHTYPE_IN: number;
-    SVG_LENGTHTYPE_MM: number;
-    SVG_LENGTHTYPE_NUMBER: number;
-    SVG_LENGTHTYPE_PC: number;
-    SVG_LENGTHTYPE_PERCENTAGE: number;
-    SVG_LENGTHTYPE_PT: number;
-    SVG_LENGTHTYPE_PX: number;
-    SVG_LENGTHTYPE_UNKNOWN: number;
+    readonly SVG_LENGTHTYPE_CM: number;
+    readonly SVG_LENGTHTYPE_EMS: number;
+    readonly SVG_LENGTHTYPE_EXS: number;
+    readonly SVG_LENGTHTYPE_IN: number;
+    readonly SVG_LENGTHTYPE_MM: number;
+    readonly SVG_LENGTHTYPE_NUMBER: number;
+    readonly SVG_LENGTHTYPE_PC: number;
+    readonly SVG_LENGTHTYPE_PERCENTAGE: number;
+    readonly SVG_LENGTHTYPE_PT: number;
+    readonly SVG_LENGTHTYPE_PX: number;
+    readonly SVG_LENGTHTYPE_UNKNOWN: number;
 }
 
 interface SVGLengthList {
-    numberOfItems: number;
+    readonly numberOfItems: number;
     appendItem(newItem: SVGLength): SVGLength;
     clear(): void;
     getItem(index: number): SVGLength;
@@ -14675,10 +16098,10 @@ declare var SVGLengthList: {
 }
 
 interface SVGLineElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired {
-    x1: SVGAnimatedLength;
-    x2: SVGAnimatedLength;
-    y1: SVGAnimatedLength;
-    y2: SVGAnimatedLength;
+    readonly x1: SVGAnimatedLength;
+    readonly x2: SVGAnimatedLength;
+    readonly y1: SVGAnimatedLength;
+    readonly y2: SVGAnimatedLength;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -14688,10 +16111,10 @@ declare var SVGLineElement: {
 }
 
 interface SVGLinearGradientElement extends SVGGradientElement {
-    x1: SVGAnimatedLength;
-    x2: SVGAnimatedLength;
-    y1: SVGAnimatedLength;
-    y2: SVGAnimatedLength;
+    readonly x1: SVGAnimatedLength;
+    readonly x2: SVGAnimatedLength;
+    readonly y1: SVGAnimatedLength;
+    readonly y2: SVGAnimatedLength;
 }
 
 declare var SVGLinearGradientElement: {
@@ -14700,42 +16123,42 @@ declare var SVGLinearGradientElement: {
 }
 
 interface SVGMarkerElement extends SVGElement, SVGStylable, SVGLangSpace, SVGExternalResourcesRequired, SVGFitToViewBox {
-    markerHeight: SVGAnimatedLength;
-    markerUnits: SVGAnimatedEnumeration;
-    markerWidth: SVGAnimatedLength;
-    orientAngle: SVGAnimatedAngle;
-    orientType: SVGAnimatedEnumeration;
-    refX: SVGAnimatedLength;
-    refY: SVGAnimatedLength;
+    readonly markerHeight: SVGAnimatedLength;
+    readonly markerUnits: SVGAnimatedEnumeration;
+    readonly markerWidth: SVGAnimatedLength;
+    readonly orientAngle: SVGAnimatedAngle;
+    readonly orientType: SVGAnimatedEnumeration;
+    readonly refX: SVGAnimatedLength;
+    readonly refY: SVGAnimatedLength;
     setOrientToAngle(angle: SVGAngle): void;
     setOrientToAuto(): void;
-    SVG_MARKERUNITS_STROKEWIDTH: number;
-    SVG_MARKERUNITS_UNKNOWN: number;
-    SVG_MARKERUNITS_USERSPACEONUSE: number;
-    SVG_MARKER_ORIENT_ANGLE: number;
-    SVG_MARKER_ORIENT_AUTO: number;
-    SVG_MARKER_ORIENT_UNKNOWN: number;
+    readonly SVG_MARKERUNITS_STROKEWIDTH: number;
+    readonly SVG_MARKERUNITS_UNKNOWN: number;
+    readonly SVG_MARKERUNITS_USERSPACEONUSE: number;
+    readonly SVG_MARKER_ORIENT_ANGLE: number;
+    readonly SVG_MARKER_ORIENT_AUTO: number;
+    readonly SVG_MARKER_ORIENT_UNKNOWN: number;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var SVGMarkerElement: {
     prototype: SVGMarkerElement;
     new(): SVGMarkerElement;
-    SVG_MARKERUNITS_STROKEWIDTH: number;
-    SVG_MARKERUNITS_UNKNOWN: number;
-    SVG_MARKERUNITS_USERSPACEONUSE: number;
-    SVG_MARKER_ORIENT_ANGLE: number;
-    SVG_MARKER_ORIENT_AUTO: number;
-    SVG_MARKER_ORIENT_UNKNOWN: number;
+    readonly SVG_MARKERUNITS_STROKEWIDTH: number;
+    readonly SVG_MARKERUNITS_UNKNOWN: number;
+    readonly SVG_MARKERUNITS_USERSPACEONUSE: number;
+    readonly SVG_MARKER_ORIENT_ANGLE: number;
+    readonly SVG_MARKER_ORIENT_AUTO: number;
+    readonly SVG_MARKER_ORIENT_UNKNOWN: number;
 }
 
 interface SVGMaskElement extends SVGElement, SVGStylable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGUnitTypes {
-    height: SVGAnimatedLength;
-    maskContentUnits: SVGAnimatedEnumeration;
-    maskUnits: SVGAnimatedEnumeration;
-    width: SVGAnimatedLength;
-    x: SVGAnimatedLength;
-    y: SVGAnimatedLength;
+    readonly height: SVGAnimatedLength;
+    readonly maskContentUnits: SVGAnimatedEnumeration;
+    readonly maskUnits: SVGAnimatedEnumeration;
+    readonly width: SVGAnimatedLength;
+    readonly x: SVGAnimatedLength;
+    readonly y: SVGAnimatedLength;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -14787,7 +16210,7 @@ declare var SVGNumber: {
 }
 
 interface SVGNumberList {
-    numberOfItems: number;
+    readonly numberOfItems: number;
     appendItem(newItem: SVGNumber): SVGNumber;
     clear(): void;
     getItem(index: number): SVGNumber;
@@ -14834,53 +16257,53 @@ declare var SVGPathElement: {
 }
 
 interface SVGPathSeg {
-    pathSegType: number;
-    pathSegTypeAsLetter: string;
-    PATHSEG_ARC_ABS: number;
-    PATHSEG_ARC_REL: number;
-    PATHSEG_CLOSEPATH: number;
-    PATHSEG_CURVETO_CUBIC_ABS: number;
-    PATHSEG_CURVETO_CUBIC_REL: number;
-    PATHSEG_CURVETO_CUBIC_SMOOTH_ABS: number;
-    PATHSEG_CURVETO_CUBIC_SMOOTH_REL: number;
-    PATHSEG_CURVETO_QUADRATIC_ABS: number;
-    PATHSEG_CURVETO_QUADRATIC_REL: number;
-    PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS: number;
-    PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL: number;
-    PATHSEG_LINETO_ABS: number;
-    PATHSEG_LINETO_HORIZONTAL_ABS: number;
-    PATHSEG_LINETO_HORIZONTAL_REL: number;
-    PATHSEG_LINETO_REL: number;
-    PATHSEG_LINETO_VERTICAL_ABS: number;
-    PATHSEG_LINETO_VERTICAL_REL: number;
-    PATHSEG_MOVETO_ABS: number;
-    PATHSEG_MOVETO_REL: number;
-    PATHSEG_UNKNOWN: number;
+    readonly pathSegType: number;
+    readonly pathSegTypeAsLetter: string;
+    readonly PATHSEG_ARC_ABS: number;
+    readonly PATHSEG_ARC_REL: number;
+    readonly PATHSEG_CLOSEPATH: number;
+    readonly PATHSEG_CURVETO_CUBIC_ABS: number;
+    readonly PATHSEG_CURVETO_CUBIC_REL: number;
+    readonly PATHSEG_CURVETO_CUBIC_SMOOTH_ABS: number;
+    readonly PATHSEG_CURVETO_CUBIC_SMOOTH_REL: number;
+    readonly PATHSEG_CURVETO_QUADRATIC_ABS: number;
+    readonly PATHSEG_CURVETO_QUADRATIC_REL: number;
+    readonly PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS: number;
+    readonly PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL: number;
+    readonly PATHSEG_LINETO_ABS: number;
+    readonly PATHSEG_LINETO_HORIZONTAL_ABS: number;
+    readonly PATHSEG_LINETO_HORIZONTAL_REL: number;
+    readonly PATHSEG_LINETO_REL: number;
+    readonly PATHSEG_LINETO_VERTICAL_ABS: number;
+    readonly PATHSEG_LINETO_VERTICAL_REL: number;
+    readonly PATHSEG_MOVETO_ABS: number;
+    readonly PATHSEG_MOVETO_REL: number;
+    readonly PATHSEG_UNKNOWN: number;
 }
 
 declare var SVGPathSeg: {
     prototype: SVGPathSeg;
     new(): SVGPathSeg;
-    PATHSEG_ARC_ABS: number;
-    PATHSEG_ARC_REL: number;
-    PATHSEG_CLOSEPATH: number;
-    PATHSEG_CURVETO_CUBIC_ABS: number;
-    PATHSEG_CURVETO_CUBIC_REL: number;
-    PATHSEG_CURVETO_CUBIC_SMOOTH_ABS: number;
-    PATHSEG_CURVETO_CUBIC_SMOOTH_REL: number;
-    PATHSEG_CURVETO_QUADRATIC_ABS: number;
-    PATHSEG_CURVETO_QUADRATIC_REL: number;
-    PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS: number;
-    PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL: number;
-    PATHSEG_LINETO_ABS: number;
-    PATHSEG_LINETO_HORIZONTAL_ABS: number;
-    PATHSEG_LINETO_HORIZONTAL_REL: number;
-    PATHSEG_LINETO_REL: number;
-    PATHSEG_LINETO_VERTICAL_ABS: number;
-    PATHSEG_LINETO_VERTICAL_REL: number;
-    PATHSEG_MOVETO_ABS: number;
-    PATHSEG_MOVETO_REL: number;
-    PATHSEG_UNKNOWN: number;
+    readonly PATHSEG_ARC_ABS: number;
+    readonly PATHSEG_ARC_REL: number;
+    readonly PATHSEG_CLOSEPATH: number;
+    readonly PATHSEG_CURVETO_CUBIC_ABS: number;
+    readonly PATHSEG_CURVETO_CUBIC_REL: number;
+    readonly PATHSEG_CURVETO_CUBIC_SMOOTH_ABS: number;
+    readonly PATHSEG_CURVETO_CUBIC_SMOOTH_REL: number;
+    readonly PATHSEG_CURVETO_QUADRATIC_ABS: number;
+    readonly PATHSEG_CURVETO_QUADRATIC_REL: number;
+    readonly PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS: number;
+    readonly PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL: number;
+    readonly PATHSEG_LINETO_ABS: number;
+    readonly PATHSEG_LINETO_HORIZONTAL_ABS: number;
+    readonly PATHSEG_LINETO_HORIZONTAL_REL: number;
+    readonly PATHSEG_LINETO_REL: number;
+    readonly PATHSEG_LINETO_VERTICAL_ABS: number;
+    readonly PATHSEG_LINETO_VERTICAL_REL: number;
+    readonly PATHSEG_MOVETO_ABS: number;
+    readonly PATHSEG_MOVETO_REL: number;
+    readonly PATHSEG_UNKNOWN: number;
 }
 
 interface SVGPathSegArcAbs extends SVGPathSeg {
@@ -15074,7 +16497,7 @@ declare var SVGPathSegLinetoVerticalRel: {
 }
 
 interface SVGPathSegList {
-    numberOfItems: number;
+    readonly numberOfItems: number;
     appendItem(newItem: SVGPathSeg): SVGPathSeg;
     clear(): void;
     getItem(index: number): SVGPathSeg;
@@ -15110,13 +16533,13 @@ declare var SVGPathSegMovetoRel: {
 }
 
 interface SVGPatternElement extends SVGElement, SVGStylable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGFitToViewBox, SVGURIReference, SVGUnitTypes {
-    height: SVGAnimatedLength;
-    patternContentUnits: SVGAnimatedEnumeration;
-    patternTransform: SVGAnimatedTransformList;
-    patternUnits: SVGAnimatedEnumeration;
-    width: SVGAnimatedLength;
-    x: SVGAnimatedLength;
-    y: SVGAnimatedLength;
+    readonly height: SVGAnimatedLength;
+    readonly patternContentUnits: SVGAnimatedEnumeration;
+    readonly patternTransform: SVGAnimatedTransformList;
+    readonly patternUnits: SVGAnimatedEnumeration;
+    readonly width: SVGAnimatedLength;
+    readonly x: SVGAnimatedLength;
+    readonly y: SVGAnimatedLength;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -15137,7 +16560,7 @@ declare var SVGPoint: {
 }
 
 interface SVGPointList {
-    numberOfItems: number;
+    readonly numberOfItems: number;
     appendItem(newItem: SVGPoint): SVGPoint;
     clear(): void;
     getItem(index: number): SVGPoint;
@@ -15173,47 +16596,47 @@ declare var SVGPolylineElement: {
 interface SVGPreserveAspectRatio {
     align: number;
     meetOrSlice: number;
-    SVG_MEETORSLICE_MEET: number;
-    SVG_MEETORSLICE_SLICE: number;
-    SVG_MEETORSLICE_UNKNOWN: number;
-    SVG_PRESERVEASPECTRATIO_NONE: number;
-    SVG_PRESERVEASPECTRATIO_UNKNOWN: number;
-    SVG_PRESERVEASPECTRATIO_XMAXYMAX: number;
-    SVG_PRESERVEASPECTRATIO_XMAXYMID: number;
-    SVG_PRESERVEASPECTRATIO_XMAXYMIN: number;
-    SVG_PRESERVEASPECTRATIO_XMIDYMAX: number;
-    SVG_PRESERVEASPECTRATIO_XMIDYMID: number;
-    SVG_PRESERVEASPECTRATIO_XMIDYMIN: number;
-    SVG_PRESERVEASPECTRATIO_XMINYMAX: number;
-    SVG_PRESERVEASPECTRATIO_XMINYMID: number;
-    SVG_PRESERVEASPECTRATIO_XMINYMIN: number;
+    readonly SVG_MEETORSLICE_MEET: number;
+    readonly SVG_MEETORSLICE_SLICE: number;
+    readonly SVG_MEETORSLICE_UNKNOWN: number;
+    readonly SVG_PRESERVEASPECTRATIO_NONE: number;
+    readonly SVG_PRESERVEASPECTRATIO_UNKNOWN: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMAXYMAX: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMAXYMID: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMAXYMIN: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMIDYMAX: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMIDYMID: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMIDYMIN: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMINYMAX: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMINYMID: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMINYMIN: number;
 }
 
 declare var SVGPreserveAspectRatio: {
     prototype: SVGPreserveAspectRatio;
     new(): SVGPreserveAspectRatio;
-    SVG_MEETORSLICE_MEET: number;
-    SVG_MEETORSLICE_SLICE: number;
-    SVG_MEETORSLICE_UNKNOWN: number;
-    SVG_PRESERVEASPECTRATIO_NONE: number;
-    SVG_PRESERVEASPECTRATIO_UNKNOWN: number;
-    SVG_PRESERVEASPECTRATIO_XMAXYMAX: number;
-    SVG_PRESERVEASPECTRATIO_XMAXYMID: number;
-    SVG_PRESERVEASPECTRATIO_XMAXYMIN: number;
-    SVG_PRESERVEASPECTRATIO_XMIDYMAX: number;
-    SVG_PRESERVEASPECTRATIO_XMIDYMID: number;
-    SVG_PRESERVEASPECTRATIO_XMIDYMIN: number;
-    SVG_PRESERVEASPECTRATIO_XMINYMAX: number;
-    SVG_PRESERVEASPECTRATIO_XMINYMID: number;
-    SVG_PRESERVEASPECTRATIO_XMINYMIN: number;
+    readonly SVG_MEETORSLICE_MEET: number;
+    readonly SVG_MEETORSLICE_SLICE: number;
+    readonly SVG_MEETORSLICE_UNKNOWN: number;
+    readonly SVG_PRESERVEASPECTRATIO_NONE: number;
+    readonly SVG_PRESERVEASPECTRATIO_UNKNOWN: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMAXYMAX: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMAXYMID: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMAXYMIN: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMIDYMAX: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMIDYMID: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMIDYMIN: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMINYMAX: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMINYMID: number;
+    readonly SVG_PRESERVEASPECTRATIO_XMINYMIN: number;
 }
 
 interface SVGRadialGradientElement extends SVGGradientElement {
-    cx: SVGAnimatedLength;
-    cy: SVGAnimatedLength;
-    fx: SVGAnimatedLength;
-    fy: SVGAnimatedLength;
-    r: SVGAnimatedLength;
+    readonly cx: SVGAnimatedLength;
+    readonly cy: SVGAnimatedLength;
+    readonly fx: SVGAnimatedLength;
+    readonly fy: SVGAnimatedLength;
+    readonly r: SVGAnimatedLength;
 }
 
 declare var SVGRadialGradientElement: {
@@ -15234,12 +16657,12 @@ declare var SVGRect: {
 }
 
 interface SVGRectElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired {
-    height: SVGAnimatedLength;
-    rx: SVGAnimatedLength;
-    ry: SVGAnimatedLength;
-    width: SVGAnimatedLength;
-    x: SVGAnimatedLength;
-    y: SVGAnimatedLength;
+    readonly height: SVGAnimatedLength;
+    readonly rx: SVGAnimatedLength;
+    readonly ry: SVGAnimatedLength;
+    readonly width: SVGAnimatedLength;
+    readonly x: SVGAnimatedLength;
+    readonly y: SVGAnimatedLength;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -15252,22 +16675,22 @@ interface SVGSVGElement extends SVGElement, DocumentEvent, SVGLocatable, SVGTest
     contentScriptType: string;
     contentStyleType: string;
     currentScale: number;
-    currentTranslate: SVGPoint;
-    height: SVGAnimatedLength;
-    onabort: (ev: Event) => any;
-    onerror: (ev: Event) => any;
-    onresize: (ev: UIEvent) => any;
-    onscroll: (ev: UIEvent) => any;
-    onunload: (ev: Event) => any;
-    onzoom: (ev: SVGZoomEvent) => any;
-    pixelUnitToMillimeterX: number;
-    pixelUnitToMillimeterY: number;
-    screenPixelToMillimeterX: number;
-    screenPixelToMillimeterY: number;
-    viewport: SVGRect;
-    width: SVGAnimatedLength;
-    x: SVGAnimatedLength;
-    y: SVGAnimatedLength;
+    readonly currentTranslate: SVGPoint;
+    readonly height: SVGAnimatedLength;
+    onabort: (this: this, ev: Event) => any;
+    onerror: (this: this, ev: Event) => any;
+    onresize: (this: this, ev: UIEvent) => any;
+    onscroll: (this: this, ev: UIEvent) => any;
+    onunload: (this: this, ev: Event) => any;
+    onzoom: (this: this, ev: SVGZoomEvent) => any;
+    readonly pixelUnitToMillimeterX: number;
+    readonly pixelUnitToMillimeterY: number;
+    readonly screenPixelToMillimeterX: number;
+    readonly screenPixelToMillimeterY: number;
+    readonly viewport: SVGRect;
+    readonly width: SVGAnimatedLength;
+    readonly x: SVGAnimatedLength;
+    readonly y: SVGAnimatedLength;
     checkEnclosure(element: SVGElement, rect: SVGRect): boolean;
     checkIntersection(element: SVGElement, rect: SVGRect): boolean;
     createSVGAngle(): SVGAngle;
@@ -15283,66 +16706,66 @@ interface SVGSVGElement extends SVGElement, DocumentEvent, SVGLocatable, SVGTest
     getComputedStyle(elt: Element, pseudoElt?: string): CSSStyleDeclaration;
     getCurrentTime(): number;
     getElementById(elementId: string): Element;
-    getEnclosureList(rect: SVGRect, referenceElement: SVGElement): NodeList;
-    getIntersectionList(rect: SVGRect, referenceElement: SVGElement): NodeList;
+    getEnclosureList(rect: SVGRect, referenceElement: SVGElement): NodeListOf<SVGCircleElement | SVGEllipseElement | SVGImageElement | SVGLineElement | SVGPathElement | SVGPolygonElement | SVGPolylineElement | SVGRectElement | SVGTextElement | SVGUseElement>;
+    getIntersectionList(rect: SVGRect, referenceElement: SVGElement): NodeListOf<SVGCircleElement | SVGEllipseElement | SVGImageElement | SVGLineElement | SVGPathElement | SVGPolygonElement | SVGPolylineElement | SVGRectElement | SVGTextElement | SVGUseElement>;
     pauseAnimations(): void;
     setCurrentTime(seconds: number): void;
     suspendRedraw(maxWaitMilliseconds: number): number;
     unpauseAnimations(): void;
     unsuspendRedraw(suspendHandleID: number): void;
     unsuspendRedrawAll(): void;
-    addEventListener(type: "MSGestureChange", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureDoubleTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureEnd", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureHold", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGotPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSInertiaStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSLostPointerCapture", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerCancel", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerDown", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerEnter", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerLeave", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerMove", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOut", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOver", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerUp", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "SVGAbort", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "SVGError", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "SVGUnload", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "SVGZoom", listener: (ev: SVGZoomEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ariarequest", listener: (ev: AriaRequestEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "click", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "command", listener: (ev: CommandEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dblclick", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "focusin", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "focusout", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "gotpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "lostpointercapture", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousedown", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousemove", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseout", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseover", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseup", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointercancel", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerdown", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerenter", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerleave", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointermove", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerout", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerover", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerup", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "resize", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "scroll", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchcancel", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchend", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchmove", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "touchstart", listener: (ev: TouchEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "webkitfullscreenerror", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "wheel", listener: (ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGotPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSLostPointerCapture", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "SVGAbort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "SVGError", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "SVGUnload", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "SVGZoom", listener: (this: this, ev: SVGZoomEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ariarequest", listener: (this: this, ev: AriaRequestEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "command", listener: (this: this, ev: CommandEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "focusin", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "focusout", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "gotpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "lostpointercapture", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "resize", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchcancel", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchend", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchmove", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "touchstart", listener: (this: this, ev: TouchEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "webkitfullscreenerror", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -15362,7 +16785,7 @@ declare var SVGScriptElement: {
 }
 
 interface SVGStopElement extends SVGElement, SVGStylable {
-    offset: SVGAnimatedNumber;
+    readonly offset: SVGAnimatedNumber;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -15372,7 +16795,7 @@ declare var SVGStopElement: {
 }
 
 interface SVGStringList {
-    numberOfItems: number;
+    readonly numberOfItems: number;
     appendItem(newItem: string): string;
     clear(): void;
     getItem(index: number): string;
@@ -15388,6 +16811,7 @@ declare var SVGStringList: {
 }
 
 interface SVGStyleElement extends SVGElement, SVGLangSpace {
+    disabled: boolean;
     media: string;
     title: string;
     type: string;
@@ -15426,8 +16850,8 @@ declare var SVGTSpanElement: {
 }
 
 interface SVGTextContentElement extends SVGElement, SVGStylable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired {
-    lengthAdjust: SVGAnimatedEnumeration;
-    textLength: SVGAnimatedLength;
+    readonly lengthAdjust: SVGAnimatedEnumeration;
+    readonly textLength: SVGAnimatedLength;
     getCharNumAtPosition(point: SVGPoint): number;
     getComputedTextLength(): number;
     getEndPositionOfChar(charnum: number): SVGPoint;
@@ -15437,18 +16861,18 @@ interface SVGTextContentElement extends SVGElement, SVGStylable, SVGTests, SVGLa
     getStartPositionOfChar(charnum: number): SVGPoint;
     getSubStringLength(charnum: number, nchars: number): number;
     selectSubString(charnum: number, nchars: number): void;
-    LENGTHADJUST_SPACING: number;
-    LENGTHADJUST_SPACINGANDGLYPHS: number;
-    LENGTHADJUST_UNKNOWN: number;
+    readonly LENGTHADJUST_SPACING: number;
+    readonly LENGTHADJUST_SPACINGANDGLYPHS: number;
+    readonly LENGTHADJUST_UNKNOWN: number;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var SVGTextContentElement: {
     prototype: SVGTextContentElement;
     new(): SVGTextContentElement;
-    LENGTHADJUST_SPACING: number;
-    LENGTHADJUST_SPACINGANDGLYPHS: number;
-    LENGTHADJUST_UNKNOWN: number;
+    readonly LENGTHADJUST_SPACING: number;
+    readonly LENGTHADJUST_SPACINGANDGLYPHS: number;
+    readonly LENGTHADJUST_UNKNOWN: number;
 }
 
 interface SVGTextElement extends SVGTextPositioningElement, SVGTransformable {
@@ -15461,35 +16885,35 @@ declare var SVGTextElement: {
 }
 
 interface SVGTextPathElement extends SVGTextContentElement, SVGURIReference {
-    method: SVGAnimatedEnumeration;
-    spacing: SVGAnimatedEnumeration;
-    startOffset: SVGAnimatedLength;
-    TEXTPATH_METHODTYPE_ALIGN: number;
-    TEXTPATH_METHODTYPE_STRETCH: number;
-    TEXTPATH_METHODTYPE_UNKNOWN: number;
-    TEXTPATH_SPACINGTYPE_AUTO: number;
-    TEXTPATH_SPACINGTYPE_EXACT: number;
-    TEXTPATH_SPACINGTYPE_UNKNOWN: number;
+    readonly method: SVGAnimatedEnumeration;
+    readonly spacing: SVGAnimatedEnumeration;
+    readonly startOffset: SVGAnimatedLength;
+    readonly TEXTPATH_METHODTYPE_ALIGN: number;
+    readonly TEXTPATH_METHODTYPE_STRETCH: number;
+    readonly TEXTPATH_METHODTYPE_UNKNOWN: number;
+    readonly TEXTPATH_SPACINGTYPE_AUTO: number;
+    readonly TEXTPATH_SPACINGTYPE_EXACT: number;
+    readonly TEXTPATH_SPACINGTYPE_UNKNOWN: number;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var SVGTextPathElement: {
     prototype: SVGTextPathElement;
     new(): SVGTextPathElement;
-    TEXTPATH_METHODTYPE_ALIGN: number;
-    TEXTPATH_METHODTYPE_STRETCH: number;
-    TEXTPATH_METHODTYPE_UNKNOWN: number;
-    TEXTPATH_SPACINGTYPE_AUTO: number;
-    TEXTPATH_SPACINGTYPE_EXACT: number;
-    TEXTPATH_SPACINGTYPE_UNKNOWN: number;
+    readonly TEXTPATH_METHODTYPE_ALIGN: number;
+    readonly TEXTPATH_METHODTYPE_STRETCH: number;
+    readonly TEXTPATH_METHODTYPE_UNKNOWN: number;
+    readonly TEXTPATH_SPACINGTYPE_AUTO: number;
+    readonly TEXTPATH_SPACINGTYPE_EXACT: number;
+    readonly TEXTPATH_SPACINGTYPE_UNKNOWN: number;
 }
 
 interface SVGTextPositioningElement extends SVGTextContentElement {
-    dx: SVGAnimatedLengthList;
-    dy: SVGAnimatedLengthList;
-    rotate: SVGAnimatedNumberList;
-    x: SVGAnimatedLengthList;
-    y: SVGAnimatedLengthList;
+    readonly dx: SVGAnimatedLengthList;
+    readonly dy: SVGAnimatedLengthList;
+    readonly rotate: SVGAnimatedNumberList;
+    readonly x: SVGAnimatedLengthList;
+    readonly y: SVGAnimatedLengthList;
 }
 
 declare var SVGTextPositioningElement: {
@@ -15507,38 +16931,38 @@ declare var SVGTitleElement: {
 }
 
 interface SVGTransform {
-    angle: number;
-    matrix: SVGMatrix;
-    type: number;
+    readonly angle: number;
+    readonly matrix: SVGMatrix;
+    readonly type: number;
     setMatrix(matrix: SVGMatrix): void;
     setRotate(angle: number, cx: number, cy: number): void;
     setScale(sx: number, sy: number): void;
     setSkewX(angle: number): void;
     setSkewY(angle: number): void;
     setTranslate(tx: number, ty: number): void;
-    SVG_TRANSFORM_MATRIX: number;
-    SVG_TRANSFORM_ROTATE: number;
-    SVG_TRANSFORM_SCALE: number;
-    SVG_TRANSFORM_SKEWX: number;
-    SVG_TRANSFORM_SKEWY: number;
-    SVG_TRANSFORM_TRANSLATE: number;
-    SVG_TRANSFORM_UNKNOWN: number;
+    readonly SVG_TRANSFORM_MATRIX: number;
+    readonly SVG_TRANSFORM_ROTATE: number;
+    readonly SVG_TRANSFORM_SCALE: number;
+    readonly SVG_TRANSFORM_SKEWX: number;
+    readonly SVG_TRANSFORM_SKEWY: number;
+    readonly SVG_TRANSFORM_TRANSLATE: number;
+    readonly SVG_TRANSFORM_UNKNOWN: number;
 }
 
 declare var SVGTransform: {
     prototype: SVGTransform;
     new(): SVGTransform;
-    SVG_TRANSFORM_MATRIX: number;
-    SVG_TRANSFORM_ROTATE: number;
-    SVG_TRANSFORM_SCALE: number;
-    SVG_TRANSFORM_SKEWX: number;
-    SVG_TRANSFORM_SKEWY: number;
-    SVG_TRANSFORM_TRANSLATE: number;
-    SVG_TRANSFORM_UNKNOWN: number;
+    readonly SVG_TRANSFORM_MATRIX: number;
+    readonly SVG_TRANSFORM_ROTATE: number;
+    readonly SVG_TRANSFORM_SCALE: number;
+    readonly SVG_TRANSFORM_SKEWX: number;
+    readonly SVG_TRANSFORM_SKEWY: number;
+    readonly SVG_TRANSFORM_TRANSLATE: number;
+    readonly SVG_TRANSFORM_UNKNOWN: number;
 }
 
 interface SVGTransformList {
-    numberOfItems: number;
+    readonly numberOfItems: number;
     appendItem(newItem: SVGTransform): SVGTransform;
     clear(): void;
     consolidate(): SVGTransform;
@@ -15556,19 +16980,19 @@ declare var SVGTransformList: {
 }
 
 interface SVGUnitTypes {
-    SVG_UNIT_TYPE_OBJECTBOUNDINGBOX: number;
-    SVG_UNIT_TYPE_UNKNOWN: number;
-    SVG_UNIT_TYPE_USERSPACEONUSE: number;
+    readonly SVG_UNIT_TYPE_OBJECTBOUNDINGBOX: number;
+    readonly SVG_UNIT_TYPE_UNKNOWN: number;
+    readonly SVG_UNIT_TYPE_USERSPACEONUSE: number;
 }
 declare var SVGUnitTypes: SVGUnitTypes;
 
 interface SVGUseElement extends SVGElement, SVGStylable, SVGTransformable, SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGURIReference {
-    animatedInstanceRoot: SVGElementInstance;
-    height: SVGAnimatedLength;
-    instanceRoot: SVGElementInstance;
-    width: SVGAnimatedLength;
-    x: SVGAnimatedLength;
-    y: SVGAnimatedLength;
+    readonly animatedInstanceRoot: SVGElementInstance;
+    readonly height: SVGAnimatedLength;
+    readonly instanceRoot: SVGElementInstance;
+    readonly width: SVGAnimatedLength;
+    readonly x: SVGAnimatedLength;
+    readonly y: SVGAnimatedLength;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -15578,7 +17002,7 @@ declare var SVGUseElement: {
 }
 
 interface SVGViewElement extends SVGElement, SVGExternalResourcesRequired, SVGFitToViewBox, SVGZoomAndPan {
-    viewTarget: SVGStringList;
+    readonly viewTarget: SVGStringList;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -15588,18 +17012,21 @@ declare var SVGViewElement: {
 }
 
 interface SVGZoomAndPan {
-    SVG_ZOOMANDPAN_DISABLE: number;
-    SVG_ZOOMANDPAN_MAGNIFY: number;
-    SVG_ZOOMANDPAN_UNKNOWN: number;
+    readonly zoomAndPan: number;
+}
+
+declare var SVGZoomAndPan: {
+    readonly SVG_ZOOMANDPAN_DISABLE: number;
+    readonly SVG_ZOOMANDPAN_MAGNIFY: number;
+    readonly SVG_ZOOMANDPAN_UNKNOWN: number;
 }
-declare var SVGZoomAndPan: SVGZoomAndPan;
 
 interface SVGZoomEvent extends UIEvent {
-    newScale: number;
-    newTranslate: SVGPoint;
-    previousScale: number;
-    previousTranslate: SVGPoint;
-    zoomRectScreen: SVGRect;
+    readonly newScale: number;
+    readonly newTranslate: SVGPoint;
+    readonly previousScale: number;
+    readonly previousTranslate: SVGPoint;
+    readonly zoomRectScreen: SVGRect;
 }
 
 declare var SVGZoomEvent: {
@@ -15608,25 +17035,25 @@ declare var SVGZoomEvent: {
 }
 
 interface Screen extends EventTarget {
-    availHeight: number;
-    availWidth: number;
+    readonly availHeight: number;
+    readonly availWidth: number;
     bufferDepth: number;
-    colorDepth: number;
-    deviceXDPI: number;
-    deviceYDPI: number;
-    fontSmoothingEnabled: boolean;
-    height: number;
-    logicalXDPI: number;
-    logicalYDPI: number;
-    msOrientation: string;
-    onmsorientationchange: (ev: Event) => any;
-    pixelDepth: number;
-    systemXDPI: number;
-    systemYDPI: number;
-    width: number;
+    readonly colorDepth: number;
+    readonly deviceXDPI: number;
+    readonly deviceYDPI: number;
+    readonly fontSmoothingEnabled: boolean;
+    readonly height: number;
+    readonly logicalXDPI: number;
+    readonly logicalYDPI: number;
+    readonly msOrientation: string;
+    onmsorientationchange: (this: this, ev: Event) => any;
+    readonly pixelDepth: number;
+    readonly systemXDPI: number;
+    readonly systemYDPI: number;
+    readonly width: number;
     msLockOrientation(orientations: string | string[]): boolean;
     msUnlockOrientation(): void;
-    addEventListener(type: "MSOrientationChange", listener: (ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSOrientationChange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -15636,8 +17063,8 @@ declare var Screen: {
 }
 
 interface ScriptNotifyEvent extends Event {
-    callingUri: string;
-    value: string;
+    readonly callingUri: string;
+    readonly value: string;
 }
 
 declare var ScriptNotifyEvent: {
@@ -15646,9 +17073,9 @@ declare var ScriptNotifyEvent: {
 }
 
 interface ScriptProcessorNode extends AudioNode {
-    bufferSize: number;
-    onaudioprocess: (ev: AudioProcessingEvent) => any;
-    addEventListener(type: "audioprocess", listener: (ev: AudioProcessingEvent) => any, useCapture?: boolean): void;
+    readonly bufferSize: number;
+    onaudioprocess: (this: this, ev: AudioProcessingEvent) => any;
+    addEventListener(type: "audioprocess", listener: (this: this, ev: AudioProcessingEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -15658,13 +17085,13 @@ declare var ScriptProcessorNode: {
 }
 
 interface Selection {
-    anchorNode: Node;
-    anchorOffset: number;
-    focusNode: Node;
-    focusOffset: number;
-    isCollapsed: boolean;
-    rangeCount: number;
-    type: string;
+    readonly anchorNode: Node;
+    readonly anchorOffset: number;
+    readonly focusNode: Node;
+    readonly focusOffset: number;
+    readonly isCollapsed: boolean;
+    readonly rangeCount: number;
+    readonly type: string;
     addRange(range: Range): void;
     collapse(parentNode: Node, offset: number): void;
     collapseToEnd(): void;
@@ -15689,12 +17116,12 @@ declare var Selection: {
 interface SourceBuffer extends EventTarget {
     appendWindowEnd: number;
     appendWindowStart: number;
-    audioTracks: AudioTrackList;
-    buffered: TimeRanges;
+    readonly audioTracks: AudioTrackList;
+    readonly buffered: TimeRanges;
     mode: string;
     timestampOffset: number;
-    updating: boolean;
-    videoTracks: VideoTrackList;
+    readonly updating: boolean;
+    readonly videoTracks: VideoTrackList;
     abort(): void;
     appendBuffer(data: ArrayBuffer | ArrayBufferView): void;
     appendStream(stream: MSStream, maxSize?: number): void;
@@ -15707,7 +17134,7 @@ declare var SourceBuffer: {
 }
 
 interface SourceBufferList extends EventTarget {
-    length: number;
+    readonly length: number;
     item(index: number): SourceBuffer;
     [index: number]: SourceBuffer;
 }
@@ -15718,7 +17145,7 @@ declare var SourceBufferList: {
 }
 
 interface StereoPannerNode extends AudioNode {
-    pan: AudioParam;
+    readonly pan: AudioParam;
 }
 
 declare var StereoPannerNode: {
@@ -15727,10 +17154,10 @@ declare var StereoPannerNode: {
 }
 
 interface Storage {
-    length: number;
+    readonly length: number;
     clear(): void;
-    getItem(key: string): any;
-    key(index: number): string;
+    getItem(key: string): string | null;
+    key(index: number): string | null;
     removeItem(key: string): void;
     setItem(key: string, data: string): void;
     [key: string]: any;
@@ -15743,21 +17170,20 @@ declare var Storage: {
 }
 
 interface StorageEvent extends Event {
-    key: string;
-    newValue: any;
-    oldValue: any;
-    storageArea: Storage;
-    url: string;
-    initStorageEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, keyArg: string, oldValueArg: any, newValueArg: any, urlArg: string, storageAreaArg: Storage): void;
+    readonly url: string;
+    key?: string;
+    oldValue?: string;
+    newValue?: string;
+    storageArea?: Storage;
 }
 
 declare var StorageEvent: {
     prototype: StorageEvent;
-    new(): StorageEvent;
+    new (type: string, eventInitDict?: StorageEventInit): StorageEvent;
 }
 
 interface StyleMedia {
-    type: string;
+    readonly type: string;
     matchMedium(mediaquery: string): boolean;
 }
 
@@ -15768,12 +17194,12 @@ declare var StyleMedia: {
 
 interface StyleSheet {
     disabled: boolean;
-    href: string;
-    media: MediaList;
-    ownerNode: Node;
-    parentStyleSheet: StyleSheet;
-    title: string;
-    type: string;
+    readonly href: string;
+    readonly media: MediaList;
+    readonly ownerNode: Node;
+    readonly parentStyleSheet: StyleSheet;
+    readonly title: string;
+    readonly type: string;
 }
 
 declare var StyleSheet: {
@@ -15782,7 +17208,7 @@ declare var StyleSheet: {
 }
 
 interface StyleSheetList {
-    length: number;
+    readonly length: number;
     item(index?: number): StyleSheet;
     [index: number]: StyleSheet;
 }
@@ -15793,7 +17219,7 @@ declare var StyleSheetList: {
 }
 
 interface StyleSheetPageList {
-    length: number;
+    readonly length: number;
     item(index: number): CSSPageRule;
     [index: number]: CSSPageRule;
 }
@@ -15804,18 +17230,24 @@ declare var StyleSheetPageList: {
 }
 
 interface SubtleCrypto {
-    decrypt(algorithm: string | Algorithm, key: CryptoKey, data: ArrayBufferView): any;
-    deriveBits(algorithm: string | Algorithm, baseKey: CryptoKey, length: number): any;
-    deriveKey(algorithm: string | Algorithm, baseKey: CryptoKey, derivedKeyType: string | Algorithm, extractable: boolean, keyUsages: string[]): any;
-    digest(algorithm: string | Algorithm, data: ArrayBufferView): any;
-    encrypt(algorithm: string | Algorithm, key: CryptoKey, data: ArrayBufferView): any;
-    exportKey(format: string, key: CryptoKey): any;
-    generateKey(algorithm: string | Algorithm, extractable: boolean, keyUsages: string[]): any;
-    importKey(format: string, keyData: ArrayBufferView, algorithm: string | Algorithm, extractable: boolean, keyUsages: string[]): any;
-    sign(algorithm: string | Algorithm, key: CryptoKey, data: ArrayBufferView): any;
-    unwrapKey(format: string, wrappedKey: ArrayBufferView, unwrappingKey: CryptoKey, unwrapAlgorithm: string | Algorithm, unwrappedKeyAlgorithm: string | Algorithm, extractable: boolean, keyUsages: string[]): any;
-    verify(algorithm: string | Algorithm, key: CryptoKey, signature: ArrayBufferView, data: ArrayBufferView): any;
-    wrapKey(format: string, key: CryptoKey, wrappingKey: CryptoKey, wrapAlgorithm: string | Algorithm): any;
+    decrypt(algorithm: string | RsaOaepParams | AesCtrParams | AesCbcParams | AesCmacParams | AesGcmParams | AesCfbParams, key: CryptoKey, data: BufferSource): PromiseLike<ArrayBuffer>;
+    deriveBits(algorithm: string | EcdhKeyDeriveParams | DhKeyDeriveParams | ConcatParams | HkdfCtrParams | Pbkdf2Params, baseKey: CryptoKey, length: number): PromiseLike<ArrayBuffer>;
+    deriveKey(algorithm: string | EcdhKeyDeriveParams | DhKeyDeriveParams | ConcatParams | HkdfCtrParams | Pbkdf2Params, baseKey: CryptoKey, derivedKeyType: string | AesDerivedKeyParams | HmacImportParams | ConcatParams | HkdfCtrParams | Pbkdf2Params, extractable: boolean, keyUsages: string[]): PromiseLike<CryptoKey>;
+    digest(algorithm: AlgorithmIdentifier, data: BufferSource): PromiseLike<ArrayBuffer>;
+    encrypt(algorithm: string | RsaOaepParams | AesCtrParams | AesCbcParams | AesCmacParams | AesGcmParams | AesCfbParams, key: CryptoKey, data: BufferSource): PromiseLike<ArrayBuffer>;
+    exportKey(format: "jwk", key: CryptoKey): PromiseLike<JsonWebKey>;
+    exportKey(format: "raw" | "pkcs8" | "spki", key: CryptoKey): PromiseLike<ArrayBuffer>;
+    exportKey(format: string, key: CryptoKey): PromiseLike<JsonWebKey | ArrayBuffer>;
+    generateKey(algorithm: string, extractable: boolean, keyUsages: string[]): PromiseLike<CryptoKeyPair | CryptoKey>;
+    generateKey(algorithm: RsaHashedKeyGenParams | EcKeyGenParams | DhKeyGenParams, extractable: boolean, keyUsages: string[]): PromiseLike<CryptoKeyPair>;
+    generateKey(algorithm: AesKeyGenParams | HmacKeyGenParams | Pbkdf2Params, extractable: boolean, keyUsages: string[]): PromiseLike<CryptoKey>;
+    importKey(format: "jwk", keyData: JsonWebKey, algorithm: string | RsaHashedImportParams | EcKeyImportParams | HmacImportParams | DhImportKeyParams, extractable:boolean, keyUsages: string[]): PromiseLike<CryptoKey>;
+    importKey(format: "raw" | "pkcs8" | "spki", keyData: BufferSource, algorithm: string | RsaHashedImportParams | EcKeyImportParams | HmacImportParams | DhImportKeyParams, extractable:boolean, keyUsages: string[]): PromiseLike<CryptoKey>;
+    importKey(format: string, keyData: JsonWebKey | BufferSource, algorithm: string | RsaHashedImportParams | EcKeyImportParams | HmacImportParams | DhImportKeyParams, extractable:boolean, keyUsages: string[]): PromiseLike<CryptoKey>;
+    sign(algorithm: string | RsaPssParams | EcdsaParams | AesCmacParams, key: CryptoKey, data: BufferSource): PromiseLike<ArrayBuffer>;
+    unwrapKey(format: string, wrappedKey: BufferSource, unwrappingKey: CryptoKey, unwrapAlgorithm: AlgorithmIdentifier, unwrappedKeyAlgorithm: AlgorithmIdentifier, extractable: boolean, keyUsages: string[]): PromiseLike<CryptoKey>;
+    verify(algorithm: string | RsaPssParams | EcdsaParams | AesCmacParams, key: CryptoKey, signature: BufferSource, data: BufferSource): PromiseLike<boolean>;
+    wrapKey(format: string, key: CryptoKey, wrappingKey: CryptoKey, wrapAlgorithm: AlgorithmIdentifier): PromiseLike<ArrayBuffer>;
 }
 
 declare var SubtleCrypto: {
@@ -15824,8 +17256,7 @@ declare var SubtleCrypto: {
 }
 
 interface Text extends CharacterData {
-    wholeText: string;
-    replaceWholeText(content: string): Text;
+    readonly wholeText: string;
     splitText(offset: number): Text;
 }
 
@@ -15835,39 +17266,39 @@ declare var Text: {
 }
 
 interface TextEvent extends UIEvent {
-    data: string;
-    inputMethod: number;
-    locale: string;
+    readonly data: string;
+    readonly inputMethod: number;
+    readonly locale: string;
     initTextEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, viewArg: Window, dataArg: string, inputMethod: number, locale: string): void;
-    DOM_INPUT_METHOD_DROP: number;
-    DOM_INPUT_METHOD_HANDWRITING: number;
-    DOM_INPUT_METHOD_IME: number;
-    DOM_INPUT_METHOD_KEYBOARD: number;
-    DOM_INPUT_METHOD_MULTIMODAL: number;
-    DOM_INPUT_METHOD_OPTION: number;
-    DOM_INPUT_METHOD_PASTE: number;
-    DOM_INPUT_METHOD_SCRIPT: number;
-    DOM_INPUT_METHOD_UNKNOWN: number;
-    DOM_INPUT_METHOD_VOICE: number;
+    readonly DOM_INPUT_METHOD_DROP: number;
+    readonly DOM_INPUT_METHOD_HANDWRITING: number;
+    readonly DOM_INPUT_METHOD_IME: number;
+    readonly DOM_INPUT_METHOD_KEYBOARD: number;
+    readonly DOM_INPUT_METHOD_MULTIMODAL: number;
+    readonly DOM_INPUT_METHOD_OPTION: number;
+    readonly DOM_INPUT_METHOD_PASTE: number;
+    readonly DOM_INPUT_METHOD_SCRIPT: number;
+    readonly DOM_INPUT_METHOD_UNKNOWN: number;
+    readonly DOM_INPUT_METHOD_VOICE: number;
 }
 
 declare var TextEvent: {
     prototype: TextEvent;
     new(): TextEvent;
-    DOM_INPUT_METHOD_DROP: number;
-    DOM_INPUT_METHOD_HANDWRITING: number;
-    DOM_INPUT_METHOD_IME: number;
-    DOM_INPUT_METHOD_KEYBOARD: number;
-    DOM_INPUT_METHOD_MULTIMODAL: number;
-    DOM_INPUT_METHOD_OPTION: number;
-    DOM_INPUT_METHOD_PASTE: number;
-    DOM_INPUT_METHOD_SCRIPT: number;
-    DOM_INPUT_METHOD_UNKNOWN: number;
-    DOM_INPUT_METHOD_VOICE: number;
+    readonly DOM_INPUT_METHOD_DROP: number;
+    readonly DOM_INPUT_METHOD_HANDWRITING: number;
+    readonly DOM_INPUT_METHOD_IME: number;
+    readonly DOM_INPUT_METHOD_KEYBOARD: number;
+    readonly DOM_INPUT_METHOD_MULTIMODAL: number;
+    readonly DOM_INPUT_METHOD_OPTION: number;
+    readonly DOM_INPUT_METHOD_PASTE: number;
+    readonly DOM_INPUT_METHOD_SCRIPT: number;
+    readonly DOM_INPUT_METHOD_UNKNOWN: number;
+    readonly DOM_INPUT_METHOD_VOICE: number;
 }
 
 interface TextMetrics {
-    width: number;
+    readonly width: number;
 }
 
 declare var TextMetrics: {
@@ -15875,113 +17306,57 @@ declare var TextMetrics: {
     new(): TextMetrics;
 }
 
-interface TextRange {
-    boundingHeight: number;
-    boundingLeft: number;
-    boundingTop: number;
-    boundingWidth: number;
-    htmlText: string;
-    offsetLeft: number;
-    offsetTop: number;
-    text: string;
-    collapse(start?: boolean): void;
-    compareEndPoints(how: string, sourceRange: TextRange): number;
-    duplicate(): TextRange;
-    execCommand(cmdID: string, showUI?: boolean, value?: any): boolean;
-    execCommandShowHelp(cmdID: string): boolean;
-    expand(Unit: string): boolean;
-    findText(string: string, count?: number, flags?: number): boolean;
-    getBookmark(): string;
-    getBoundingClientRect(): ClientRect;
-    getClientRects(): ClientRectList;
-    inRange(range: TextRange): boolean;
-    isEqual(range: TextRange): boolean;
-    move(unit: string, count?: number): number;
-    moveEnd(unit: string, count?: number): number;
-    moveStart(unit: string, count?: number): number;
-    moveToBookmark(bookmark: string): boolean;
-    moveToElementText(element: Element): void;
-    moveToPoint(x: number, y: number): void;
-    parentElement(): Element;
-    pasteHTML(html: string): void;
-    queryCommandEnabled(cmdID: string): boolean;
-    queryCommandIndeterm(cmdID: string): boolean;
-    queryCommandState(cmdID: string): boolean;
-    queryCommandSupported(cmdID: string): boolean;
-    queryCommandText(cmdID: string): string;
-    queryCommandValue(cmdID: string): any;
-    scrollIntoView(fStart?: boolean): void;
-    select(): void;
-    setEndPoint(how: string, SourceRange: TextRange): void;
-}
-
-declare var TextRange: {
-    prototype: TextRange;
-    new(): TextRange;
-}
-
-interface TextRangeCollection {
-    length: number;
-    item(index: number): TextRange;
-    [index: number]: TextRange;
-}
-
-declare var TextRangeCollection: {
-    prototype: TextRangeCollection;
-    new(): TextRangeCollection;
-}
-
 interface TextTrack extends EventTarget {
-    activeCues: TextTrackCueList;
-    cues: TextTrackCueList;
-    inBandMetadataTrackDispatchType: string;
-    kind: string;
-    label: string;
-    language: string;
+    readonly activeCues: TextTrackCueList;
+    readonly cues: TextTrackCueList;
+    readonly inBandMetadataTrackDispatchType: string;
+    readonly kind: string;
+    readonly label: string;
+    readonly language: string;
     mode: any;
-    oncuechange: (ev: Event) => any;
-    onerror: (ev: Event) => any;
-    onload: (ev: Event) => any;
-    readyState: number;
+    oncuechange: (this: this, ev: Event) => any;
+    onerror: (this: this, ev: ErrorEvent) => any;
+    onload: (this: this, ev: Event) => any;
+    readonly readyState: number;
     addCue(cue: TextTrackCue): void;
     removeCue(cue: TextTrackCue): void;
-    DISABLED: number;
-    ERROR: number;
-    HIDDEN: number;
-    LOADED: number;
-    LOADING: number;
-    NONE: number;
-    SHOWING: number;
-    addEventListener(type: "cuechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
+    readonly DISABLED: number;
+    readonly ERROR: number;
+    readonly HIDDEN: number;
+    readonly LOADED: number;
+    readonly LOADING: number;
+    readonly NONE: number;
+    readonly SHOWING: number;
+    addEventListener(type: "cuechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var TextTrack: {
     prototype: TextTrack;
     new(): TextTrack;
-    DISABLED: number;
-    ERROR: number;
-    HIDDEN: number;
-    LOADED: number;
-    LOADING: number;
-    NONE: number;
-    SHOWING: number;
+    readonly DISABLED: number;
+    readonly ERROR: number;
+    readonly HIDDEN: number;
+    readonly LOADED: number;
+    readonly LOADING: number;
+    readonly NONE: number;
+    readonly SHOWING: number;
 }
 
 interface TextTrackCue extends EventTarget {
     endTime: number;
     id: string;
-    onenter: (ev: Event) => any;
-    onexit: (ev: Event) => any;
+    onenter: (this: this, ev: Event) => any;
+    onexit: (this: this, ev: Event) => any;
     pauseOnExit: boolean;
     startTime: number;
     text: string;
-    track: TextTrack;
+    readonly track: TextTrack;
     getCueAsHTML(): DocumentFragment;
-    addEventListener(type: "enter", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "exit", listener: (ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "enter", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "exit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -15991,7 +17366,7 @@ declare var TextTrackCue: {
 }
 
 interface TextTrackCueList {
-    length: number;
+    readonly length: number;
     getCueById(id: string): TextTrackCue;
     item(index: number): TextTrackCue;
     [index: number]: TextTrackCue;
@@ -16003,10 +17378,10 @@ declare var TextTrackCueList: {
 }
 
 interface TextTrackList extends EventTarget {
-    length: number;
-    onaddtrack: (ev: TrackEvent) => any;
+    readonly length: number;
+    onaddtrack: ((this: this, ev: TrackEvent) => any) | null;
     item(index: number): TextTrack;
-    addEventListener(type: "addtrack", listener: (ev: TrackEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "addtrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
     [index: number]: TextTrack;
 }
@@ -16017,7 +17392,7 @@ declare var TextTrackList: {
 }
 
 interface TimeRanges {
-    length: number;
+    readonly length: number;
     end(index: number): number;
     start(index: number): number;
 }
@@ -16028,14 +17403,14 @@ declare var TimeRanges: {
 }
 
 interface Touch {
-    clientX: number;
-    clientY: number;
-    identifier: number;
-    pageX: number;
-    pageY: number;
-    screenX: number;
-    screenY: number;
-    target: EventTarget;
+    readonly clientX: number;
+    readonly clientY: number;
+    readonly identifier: number;
+    readonly pageX: number;
+    readonly pageY: number;
+    readonly screenX: number;
+    readonly screenY: number;
+    readonly target: EventTarget;
 }
 
 declare var Touch: {
@@ -16044,13 +17419,13 @@ declare var Touch: {
 }
 
 interface TouchEvent extends UIEvent {
-    altKey: boolean;
-    changedTouches: TouchList;
-    ctrlKey: boolean;
-    metaKey: boolean;
-    shiftKey: boolean;
-    targetTouches: TouchList;
-    touches: TouchList;
+    readonly altKey: boolean;
+    readonly changedTouches: TouchList;
+    readonly ctrlKey: boolean;
+    readonly metaKey: boolean;
+    readonly shiftKey: boolean;
+    readonly targetTouches: TouchList;
+    readonly touches: TouchList;
 }
 
 declare var TouchEvent: {
@@ -16059,8 +17434,8 @@ declare var TouchEvent: {
 }
 
 interface TouchList {
-    length: number;
-    item(index: number): Touch;
+    readonly length: number;
+    item(index: number): Touch | null;
     [index: number]: Touch;
 }
 
@@ -16070,7 +17445,7 @@ declare var TouchList: {
 }
 
 interface TrackEvent extends Event {
-    track: any;
+    readonly track: any;
 }
 
 declare var TrackEvent: {
@@ -16079,8 +17454,8 @@ declare var TrackEvent: {
 }
 
 interface TransitionEvent extends Event {
-    elapsedTime: number;
-    propertyName: string;
+    readonly elapsedTime: number;
+    readonly propertyName: string;
     initTransitionEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, propertyNameArg: string, elapsedTimeArg: number): void;
 }
 
@@ -16091,10 +17466,10 @@ declare var TransitionEvent: {
 
 interface TreeWalker {
     currentNode: Node;
-    expandEntityReferences: boolean;
-    filter: NodeFilter;
-    root: Node;
-    whatToShow: number;
+    readonly expandEntityReferences: boolean;
+    readonly filter: NodeFilter;
+    readonly root: Node;
+    readonly whatToShow: number;
     firstChild(): Node;
     lastChild(): Node;
     nextNode(): Node;
@@ -16110,8 +17485,8 @@ declare var TreeWalker: {
 }
 
 interface UIEvent extends Event {
-    detail: number;
-    view: Window;
+    readonly detail: number;
+    readonly view: Window;
     initUIEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, viewArg: Window, detailArg: number): void;
 }
 
@@ -16121,13 +17496,29 @@ declare var UIEvent: {
 }
 
 interface URL {
+    hash: string;
+    host: string;
+    hostname: string;
+    href: string;
+    readonly origin: string;
+    password: string;
+    pathname: string;
+    port: string;
+    protocol: string;
+    search: string;
+    username: string;
+    toString(): string;
+}
+
+declare var URL: {
+    prototype: URL;
+    new(url: string, base?: string): URL;
     createObjectURL(object: any, options?: ObjectURLOptions): string;
     revokeObjectURL(url: string): void;
 }
-declare var URL: URL;
 
 interface UnviewableContentIdentifiedEvent extends NavigationEventWithReferrer {
-    mediaType: string;
+    readonly mediaType: string;
 }
 
 declare var UnviewableContentIdentifiedEvent: {
@@ -16136,16 +17527,16 @@ declare var UnviewableContentIdentifiedEvent: {
 }
 
 interface ValidityState {
-    badInput: boolean;
-    customError: boolean;
-    patternMismatch: boolean;
-    rangeOverflow: boolean;
-    rangeUnderflow: boolean;
-    stepMismatch: boolean;
-    tooLong: boolean;
-    typeMismatch: boolean;
-    valid: boolean;
-    valueMissing: boolean;
+    readonly badInput: boolean;
+    readonly customError: boolean;
+    readonly patternMismatch: boolean;
+    readonly rangeOverflow: boolean;
+    readonly rangeUnderflow: boolean;
+    readonly stepMismatch: boolean;
+    readonly tooLong: boolean;
+    readonly typeMismatch: boolean;
+    readonly valid: boolean;
+    readonly valueMissing: boolean;
 }
 
 declare var ValidityState: {
@@ -16154,11 +17545,11 @@ declare var ValidityState: {
 }
 
 interface VideoPlaybackQuality {
-    corruptedVideoFrames: number;
-    creationTime: number;
-    droppedVideoFrames: number;
-    totalFrameDelay: number;
-    totalVideoFrames: number;
+    readonly corruptedVideoFrames: number;
+    readonly creationTime: number;
+    readonly droppedVideoFrames: number;
+    readonly totalFrameDelay: number;
+    readonly totalVideoFrames: number;
 }
 
 declare var VideoPlaybackQuality: {
@@ -16167,12 +17558,12 @@ declare var VideoPlaybackQuality: {
 }
 
 interface VideoTrack {
-    id: string;
+    readonly id: string;
     kind: string;
-    label: string;
+    readonly label: string;
     language: string;
     selected: boolean;
-    sourceBuffer: SourceBuffer;
+    readonly sourceBuffer: SourceBuffer;
 }
 
 declare var VideoTrack: {
@@ -16181,16 +17572,16 @@ declare var VideoTrack: {
 }
 
 interface VideoTrackList extends EventTarget {
-    length: number;
-    onaddtrack: (ev: TrackEvent) => any;
-    onchange: (ev: Event) => any;
-    onremovetrack: (ev: TrackEvent) => any;
-    selectedIndex: number;
-    getTrackById(id: string): VideoTrack;
+    readonly length: number;
+    onaddtrack: (this: this, ev: TrackEvent) => any;
+    onchange: (this: this, ev: Event) => any;
+    onremovetrack: (this: this, ev: TrackEvent) => any;
+    readonly selectedIndex: number;
+    getTrackById(id: string): VideoTrack | null;
     item(index: number): VideoTrack;
-    addEventListener(type: "addtrack", listener: (ev: TrackEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "change", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "removetrack", listener: (ev: TrackEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "addtrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "removetrack", listener: (this: this, ev: TrackEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
     [index: number]: VideoTrack;
 }
@@ -16201,45 +17592,45 @@ declare var VideoTrackList: {
 }
 
 interface WEBGL_compressed_texture_s3tc {
-    COMPRESSED_RGBA_S3TC_DXT1_EXT: number;
-    COMPRESSED_RGBA_S3TC_DXT3_EXT: number;
-    COMPRESSED_RGBA_S3TC_DXT5_EXT: number;
-    COMPRESSED_RGB_S3TC_DXT1_EXT: number;
+    readonly COMPRESSED_RGBA_S3TC_DXT1_EXT: number;
+    readonly COMPRESSED_RGBA_S3TC_DXT3_EXT: number;
+    readonly COMPRESSED_RGBA_S3TC_DXT5_EXT: number;
+    readonly COMPRESSED_RGB_S3TC_DXT1_EXT: number;
 }
 
 declare var WEBGL_compressed_texture_s3tc: {
     prototype: WEBGL_compressed_texture_s3tc;
     new(): WEBGL_compressed_texture_s3tc;
-    COMPRESSED_RGBA_S3TC_DXT1_EXT: number;
-    COMPRESSED_RGBA_S3TC_DXT3_EXT: number;
-    COMPRESSED_RGBA_S3TC_DXT5_EXT: number;
-    COMPRESSED_RGB_S3TC_DXT1_EXT: number;
+    readonly COMPRESSED_RGBA_S3TC_DXT1_EXT: number;
+    readonly COMPRESSED_RGBA_S3TC_DXT3_EXT: number;
+    readonly COMPRESSED_RGBA_S3TC_DXT5_EXT: number;
+    readonly COMPRESSED_RGB_S3TC_DXT1_EXT: number;
 }
 
 interface WEBGL_debug_renderer_info {
-    UNMASKED_RENDERER_WEBGL: number;
-    UNMASKED_VENDOR_WEBGL: number;
+    readonly UNMASKED_RENDERER_WEBGL: number;
+    readonly UNMASKED_VENDOR_WEBGL: number;
 }
 
 declare var WEBGL_debug_renderer_info: {
     prototype: WEBGL_debug_renderer_info;
     new(): WEBGL_debug_renderer_info;
-    UNMASKED_RENDERER_WEBGL: number;
-    UNMASKED_VENDOR_WEBGL: number;
+    readonly UNMASKED_RENDERER_WEBGL: number;
+    readonly UNMASKED_VENDOR_WEBGL: number;
 }
 
 interface WEBGL_depth_texture {
-    UNSIGNED_INT_24_8_WEBGL: number;
+    readonly UNSIGNED_INT_24_8_WEBGL: number;
 }
 
 declare var WEBGL_depth_texture: {
     prototype: WEBGL_depth_texture;
     new(): WEBGL_depth_texture;
-    UNSIGNED_INT_24_8_WEBGL: number;
+    readonly UNSIGNED_INT_24_8_WEBGL: number;
 }
 
 interface WaveShaperNode extends AudioNode {
-    curve: Float32Array;
+    curve: Float32Array | null;
     oversample: string;
 }
 
@@ -16249,9 +17640,9 @@ declare var WaveShaperNode: {
 }
 
 interface WebGLActiveInfo {
-    name: string;
-    size: number;
-    type: number;
+    readonly name: string;
+    readonly size: number;
+    readonly type: number;
 }
 
 declare var WebGLActiveInfo: {
@@ -16268,12 +17659,12 @@ declare var WebGLBuffer: {
 }
 
 interface WebGLContextEvent extends Event {
-    statusMessage: string;
+    readonly statusMessage: string;
 }
 
 declare var WebGLContextEvent: {
     prototype: WebGLContextEvent;
-    new(): WebGLContextEvent;
+    new(type: string, eventInitDict?: WebGLContextEventInit): WebGLContextEvent;
 }
 
 interface WebGLFramebuffer extends WebGLObject {
@@ -16309,16 +17700,16 @@ declare var WebGLRenderbuffer: {
 }
 
 interface WebGLRenderingContext {
-    canvas: HTMLCanvasElement;
-    drawingBufferHeight: number;
-    drawingBufferWidth: number;
+    readonly canvas: HTMLCanvasElement;
+    readonly drawingBufferHeight: number;
+    readonly drawingBufferWidth: number;
     activeTexture(texture: number): void;
-    attachShader(program: WebGLProgram, shader: WebGLShader): void;
-    bindAttribLocation(program: WebGLProgram, index: number, name: string): void;
-    bindBuffer(target: number, buffer: WebGLBuffer): void;
-    bindFramebuffer(target: number, framebuffer: WebGLFramebuffer): void;
-    bindRenderbuffer(target: number, renderbuffer: WebGLRenderbuffer): void;
-    bindTexture(target: number, texture: WebGLTexture): void;
+    attachShader(program: WebGLProgram | null, shader: WebGLShader | null): void;
+    bindAttribLocation(program: WebGLProgram | null, index: number, name: string): void;
+    bindBuffer(target: number, buffer: WebGLBuffer | null): void;
+    bindFramebuffer(target: number, framebuffer: WebGLFramebuffer | null): void;
+    bindRenderbuffer(target: number, renderbuffer: WebGLRenderbuffer | null): void;
+    bindTexture(target: number, texture: WebGLTexture | null): void;
     blendColor(red: number, green: number, blue: number, alpha: number): void;
     blendEquation(mode: number): void;
     blendEquationSeparate(modeRGB: number, modeAlpha: number): void;
@@ -16332,28 +17723,28 @@ interface WebGLRenderingContext {
     clearDepth(depth: number): void;
     clearStencil(s: number): void;
     colorMask(red: boolean, green: boolean, blue: boolean, alpha: boolean): void;
-    compileShader(shader: WebGLShader): void;
+    compileShader(shader: WebGLShader | null): void;
     compressedTexImage2D(target: number, level: number, internalformat: number, width: number, height: number, border: number, data: ArrayBufferView): void;
     compressedTexSubImage2D(target: number, level: number, xoffset: number, yoffset: number, width: number, height: number, format: number, data: ArrayBufferView): void;
     copyTexImage2D(target: number, level: number, internalformat: number, x: number, y: number, width: number, height: number, border: number): void;
     copyTexSubImage2D(target: number, level: number, xoffset: number, yoffset: number, x: number, y: number, width: number, height: number): void;
-    createBuffer(): WebGLBuffer;
-    createFramebuffer(): WebGLFramebuffer;
-    createProgram(): WebGLProgram;
-    createRenderbuffer(): WebGLRenderbuffer;
-    createShader(type: number): WebGLShader;
-    createTexture(): WebGLTexture;
+    createBuffer(): WebGLBuffer | null;
+    createFramebuffer(): WebGLFramebuffer | null;
+    createProgram(): WebGLProgram | null;
+    createRenderbuffer(): WebGLRenderbuffer | null;
+    createShader(type: number): WebGLShader | null;
+    createTexture(): WebGLTexture | null;
     cullFace(mode: number): void;
-    deleteBuffer(buffer: WebGLBuffer): void;
-    deleteFramebuffer(framebuffer: WebGLFramebuffer): void;
-    deleteProgram(program: WebGLProgram): void;
-    deleteRenderbuffer(renderbuffer: WebGLRenderbuffer): void;
-    deleteShader(shader: WebGLShader): void;
-    deleteTexture(texture: WebGLTexture): void;
+    deleteBuffer(buffer: WebGLBuffer | null): void;
+    deleteFramebuffer(framebuffer: WebGLFramebuffer | null): void;
+    deleteProgram(program: WebGLProgram | null): void;
+    deleteRenderbuffer(renderbuffer: WebGLRenderbuffer | null): void;
+    deleteShader(shader: WebGLShader | null): void;
+    deleteTexture(texture: WebGLTexture | null): void;
     depthFunc(func: number): void;
     depthMask(flag: boolean): void;
     depthRange(zNear: number, zFar: number): void;
-    detachShader(program: WebGLProgram, shader: WebGLShader): void;
+    detachShader(program: WebGLProgram | null, shader: WebGLShader | null): void;
     disable(cap: number): void;
     disableVertexAttribArray(index: number): void;
     drawArrays(mode: number, first: number, count: number): void;
@@ -16362,699 +17753,693 @@ interface WebGLRenderingContext {
     enableVertexAttribArray(index: number): void;
     finish(): void;
     flush(): void;
-    framebufferRenderbuffer(target: number, attachment: number, renderbuffertarget: number, renderbuffer: WebGLRenderbuffer): void;
-    framebufferTexture2D(target: number, attachment: number, textarget: number, texture: WebGLTexture, level: number): void;
+    framebufferRenderbuffer(target: number, attachment: number, renderbuffertarget: number, renderbuffer: WebGLRenderbuffer | null): void;
+    framebufferTexture2D(target: number, attachment: number, textarget: number, texture: WebGLTexture | null, level: number): void;
     frontFace(mode: number): void;
     generateMipmap(target: number): void;
-    getActiveAttrib(program: WebGLProgram, index: number): WebGLActiveInfo;
-    getActiveUniform(program: WebGLProgram, index: number): WebGLActiveInfo;
-    getAttachedShaders(program: WebGLProgram): WebGLShader[];
-    getAttribLocation(program: WebGLProgram, name: string): number;
+    getActiveAttrib(program: WebGLProgram | null, index: number): WebGLActiveInfo | null;
+    getActiveUniform(program: WebGLProgram | null, index: number): WebGLActiveInfo | null;
+    getAttachedShaders(program: WebGLProgram | null): WebGLShader[] | null;
+    getAttribLocation(program: WebGLProgram | null, name: string): number;
     getBufferParameter(target: number, pname: number): any;
     getContextAttributes(): WebGLContextAttributes;
     getError(): number;
     getExtension(name: string): any;
     getFramebufferAttachmentParameter(target: number, attachment: number, pname: number): any;
     getParameter(pname: number): any;
-    getProgramInfoLog(program: WebGLProgram): string;
-    getProgramParameter(program: WebGLProgram, pname: number): any;
+    getProgramInfoLog(program: WebGLProgram | null): string | null;
+    getProgramParameter(program: WebGLProgram | null, pname: number): any;
     getRenderbufferParameter(target: number, pname: number): any;
-    getShaderInfoLog(shader: WebGLShader): string;
-    getShaderParameter(shader: WebGLShader, pname: number): any;
-    getShaderPrecisionFormat(shadertype: number, precisiontype: number): WebGLShaderPrecisionFormat;
-    getShaderSource(shader: WebGLShader): string;
-    getSupportedExtensions(): string[];
+    getShaderInfoLog(shader: WebGLShader | null): string | null;
+    getShaderParameter(shader: WebGLShader | null, pname: number): any;
+    getShaderPrecisionFormat(shadertype: number, precisiontype: number): WebGLShaderPrecisionFormat | null;
+    getShaderSource(shader: WebGLShader | null): string | null;
+    getSupportedExtensions(): string[] | null;
     getTexParameter(target: number, pname: number): any;
-    getUniform(program: WebGLProgram, location: WebGLUniformLocation): any;
-    getUniformLocation(program: WebGLProgram, name: string): WebGLUniformLocation;
+    getUniform(program: WebGLProgram | null, location: WebGLUniformLocation | null): any;
+    getUniformLocation(program: WebGLProgram | null, name: string): WebGLUniformLocation | null;
     getVertexAttrib(index: number, pname: number): any;
     getVertexAttribOffset(index: number, pname: number): number;
     hint(target: number, mode: number): void;
-    isBuffer(buffer: WebGLBuffer): boolean;
+    isBuffer(buffer: WebGLBuffer | null): boolean;
     isContextLost(): boolean;
     isEnabled(cap: number): boolean;
-    isFramebuffer(framebuffer: WebGLFramebuffer): boolean;
-    isProgram(program: WebGLProgram): boolean;
-    isRenderbuffer(renderbuffer: WebGLRenderbuffer): boolean;
-    isShader(shader: WebGLShader): boolean;
-    isTexture(texture: WebGLTexture): boolean;
+    isFramebuffer(framebuffer: WebGLFramebuffer | null): boolean;
+    isProgram(program: WebGLProgram | null): boolean;
+    isRenderbuffer(renderbuffer: WebGLRenderbuffer | null): boolean;
+    isShader(shader: WebGLShader | null): boolean;
+    isTexture(texture: WebGLTexture | null): boolean;
     lineWidth(width: number): void;
-    linkProgram(program: WebGLProgram): void;
+    linkProgram(program: WebGLProgram | null): void;
     pixelStorei(pname: number, param: number): void;
     polygonOffset(factor: number, units: number): void;
-    readPixels(x: number, y: number, width: number, height: number, format: number, type: number, pixels: ArrayBufferView): void;
+    readPixels(x: number, y: number, width: number, height: number, format: number, type: number, pixels: ArrayBufferView | null): void;
     renderbufferStorage(target: number, internalformat: number, width: number, height: number): void;
     sampleCoverage(value: number, invert: boolean): void;
     scissor(x: number, y: number, width: number, height: number): void;
-    shaderSource(shader: WebGLShader, source: string): void;
+    shaderSource(shader: WebGLShader | null, source: string): void;
     stencilFunc(func: number, ref: number, mask: number): void;
     stencilFuncSeparate(face: number, func: number, ref: number, mask: number): void;
     stencilMask(mask: number): void;
     stencilMaskSeparate(face: number, mask: number): void;
     stencilOp(fail: number, zfail: number, zpass: number): void;
     stencilOpSeparate(face: number, fail: number, zfail: number, zpass: number): void;
-    texImage2D(target: number, level: number, internalformat: number, width: number, height: number, border: number, format: number, type: number, pixels: ArrayBufferView): void;
-    texImage2D(target: number, level: number, internalformat: number, format: number, type: number, image: HTMLImageElement): void;
-    texImage2D(target: number, level: number, internalformat: number, format: number, type: number, canvas: HTMLCanvasElement): void;
-    texImage2D(target: number, level: number, internalformat: number, format: number, type: number, video: HTMLVideoElement): void;
-    texImage2D(target: number, level: number, internalformat: number, format: number, type: number, pixels: ImageData): void;
+    texImage2D(target: number, level: number, internalformat: number, width: number, height: number, border: number, format: number, type: number, pixels?: ArrayBufferView): void;
+    texImage2D(target: number, level: number, internalformat: number, format: number, type: number, pixels?: ImageData | HTMLVideoElement | HTMLImageElement | HTMLCanvasElement): void;
     texParameterf(target: number, pname: number, param: number): void;
     texParameteri(target: number, pname: number, param: number): void;
-    texSubImage2D(target: number, level: number, xoffset: number, yoffset: number, width: number, height: number, format: number, type: number, pixels: ArrayBufferView): void;
-    texSubImage2D(target: number, level: number, xoffset: number, yoffset: number, format: number, type: number, image: HTMLImageElement): void;
-    texSubImage2D(target: number, level: number, xoffset: number, yoffset: number, format: number, type: number, canvas: HTMLCanvasElement): void;
-    texSubImage2D(target: number, level: number, xoffset: number, yoffset: number, format: number, type: number, video: HTMLVideoElement): void;
-    texSubImage2D(target: number, level: number, xoffset: number, yoffset: number, format: number, type: number, pixels: ImageData): void;
-    uniform1f(location: WebGLUniformLocation, x: number): void;
-    uniform1fv(location: WebGLUniformLocation, v: Float32Array): void;
-    uniform1i(location: WebGLUniformLocation, x: number): void;
-    uniform1iv(location: WebGLUniformLocation, v: Int32Array): void;
-    uniform2f(location: WebGLUniformLocation, x: number, y: number): void;
-    uniform2fv(location: WebGLUniformLocation, v: Float32Array): void;
-    uniform2i(location: WebGLUniformLocation, x: number, y: number): void;
-    uniform2iv(location: WebGLUniformLocation, v: Int32Array): void;
-    uniform3f(location: WebGLUniformLocation, x: number, y: number, z: number): void;
-    uniform3fv(location: WebGLUniformLocation, v: Float32Array): void;
-    uniform3i(location: WebGLUniformLocation, x: number, y: number, z: number): void;
-    uniform3iv(location: WebGLUniformLocation, v: Int32Array): void;
-    uniform4f(location: WebGLUniformLocation, x: number, y: number, z: number, w: number): void;
-    uniform4fv(location: WebGLUniformLocation, v: Float32Array): void;
-    uniform4i(location: WebGLUniformLocation, x: number, y: number, z: number, w: number): void;
-    uniform4iv(location: WebGLUniformLocation, v: Int32Array): void;
-    uniformMatrix2fv(location: WebGLUniformLocation, transpose: boolean, value: Float32Array): void;
-    uniformMatrix3fv(location: WebGLUniformLocation, transpose: boolean, value: Float32Array): void;
-    uniformMatrix4fv(location: WebGLUniformLocation, transpose: boolean, value: Float32Array): void;
-    useProgram(program: WebGLProgram): void;
-    validateProgram(program: WebGLProgram): void;
+    texSubImage2D(target: number, level: number, xoffset: number, yoffset: number, width: number, height: number, format: number, type: number, pixels?: ArrayBufferView): void;
+    texSubImage2D(target: number, level: number, xoffset: number, yoffset: number, format: number, type: number, pixels?: ImageData | HTMLVideoElement | HTMLImageElement | HTMLCanvasElement): void;
+    uniform1f(location: WebGLUniformLocation | null, x: number): void;
+    uniform1fv(location: WebGLUniformLocation, v: Float32Array | number[]): void;
+    uniform1i(location: WebGLUniformLocation | null, x: number): void;
+    uniform1iv(location: WebGLUniformLocation, v: Int32Array | number[]): void;
+    uniform2f(location: WebGLUniformLocation | null, x: number, y: number): void;
+    uniform2fv(location: WebGLUniformLocation, v: Float32Array | number[]): void;
+    uniform2i(location: WebGLUniformLocation | null, x: number, y: number): void;
+    uniform2iv(location: WebGLUniformLocation, v: Int32Array | number[]): void;
+    uniform3f(location: WebGLUniformLocation | null, x: number, y: number, z: number): void;
+    uniform3fv(location: WebGLUniformLocation, v: Float32Array | number[]): void;
+    uniform3i(location: WebGLUniformLocation | null, x: number, y: number, z: number): void;
+    uniform3iv(location: WebGLUniformLocation, v: Int32Array | number[]): void;
+    uniform4f(location: WebGLUniformLocation | null, x: number, y: number, z: number, w: number): void;
+    uniform4fv(location: WebGLUniformLocation, v: Float32Array | number[]): void;
+    uniform4i(location: WebGLUniformLocation | null, x: number, y: number, z: number, w: number): void;
+    uniform4iv(location: WebGLUniformLocation, v: Int32Array | number[]): void;
+    uniformMatrix2fv(location: WebGLUniformLocation, transpose: boolean, value: Float32Array | number[]): void;
+    uniformMatrix3fv(location: WebGLUniformLocation, transpose: boolean, value: Float32Array | number[]): void;
+    uniformMatrix4fv(location: WebGLUniformLocation, transpose: boolean, value: Float32Array | number[]): void;
+    useProgram(program: WebGLProgram | null): void;
+    validateProgram(program: WebGLProgram | null): void;
     vertexAttrib1f(indx: number, x: number): void;
-    vertexAttrib1fv(indx: number, values: Float32Array): void;
+    vertexAttrib1fv(indx: number, values: Float32Array | number[]): void;
     vertexAttrib2f(indx: number, x: number, y: number): void;
-    vertexAttrib2fv(indx: number, values: Float32Array): void;
+    vertexAttrib2fv(indx: number, values: Float32Array | number[]): void;
     vertexAttrib3f(indx: number, x: number, y: number, z: number): void;
-    vertexAttrib3fv(indx: number, values: Float32Array): void;
+    vertexAttrib3fv(indx: number, values: Float32Array | number[]): void;
     vertexAttrib4f(indx: number, x: number, y: number, z: number, w: number): void;
-    vertexAttrib4fv(indx: number, values: Float32Array): void;
+    vertexAttrib4fv(indx: number, values: Float32Array | number[]): void;
     vertexAttribPointer(indx: number, size: number, type: number, normalized: boolean, stride: number, offset: number): void;
     viewport(x: number, y: number, width: number, height: number): void;
-    ACTIVE_ATTRIBUTES: number;
-    ACTIVE_TEXTURE: number;
-    ACTIVE_UNIFORMS: number;
-    ALIASED_LINE_WIDTH_RANGE: number;
-    ALIASED_POINT_SIZE_RANGE: number;
-    ALPHA: number;
-    ALPHA_BITS: number;
-    ALWAYS: number;
-    ARRAY_BUFFER: number;
-    ARRAY_BUFFER_BINDING: number;
-    ATTACHED_SHADERS: number;
-    BACK: number;
-    BLEND: number;
-    BLEND_COLOR: number;
-    BLEND_DST_ALPHA: number;
-    BLEND_DST_RGB: number;
-    BLEND_EQUATION: number;
-    BLEND_EQUATION_ALPHA: number;
-    BLEND_EQUATION_RGB: number;
-    BLEND_SRC_ALPHA: number;
-    BLEND_SRC_RGB: number;
-    BLUE_BITS: number;
-    BOOL: number;
-    BOOL_VEC2: number;
-    BOOL_VEC3: number;
-    BOOL_VEC4: number;
-    BROWSER_DEFAULT_WEBGL: number;
-    BUFFER_SIZE: number;
-    BUFFER_USAGE: number;
-    BYTE: number;
-    CCW: number;
-    CLAMP_TO_EDGE: number;
-    COLOR_ATTACHMENT0: number;
-    COLOR_BUFFER_BIT: number;
-    COLOR_CLEAR_VALUE: number;
-    COLOR_WRITEMASK: number;
-    COMPILE_STATUS: number;
-    COMPRESSED_TEXTURE_FORMATS: number;
-    CONSTANT_ALPHA: number;
-    CONSTANT_COLOR: number;
-    CONTEXT_LOST_WEBGL: number;
-    CULL_FACE: number;
-    CULL_FACE_MODE: number;
-    CURRENT_PROGRAM: number;
-    CURRENT_VERTEX_ATTRIB: number;
-    CW: number;
-    DECR: number;
-    DECR_WRAP: number;
-    DELETE_STATUS: number;
-    DEPTH_ATTACHMENT: number;
-    DEPTH_BITS: number;
-    DEPTH_BUFFER_BIT: number;
-    DEPTH_CLEAR_VALUE: number;
-    DEPTH_COMPONENT: number;
-    DEPTH_COMPONENT16: number;
-    DEPTH_FUNC: number;
-    DEPTH_RANGE: number;
-    DEPTH_STENCIL: number;
-    DEPTH_STENCIL_ATTACHMENT: number;
-    DEPTH_TEST: number;
-    DEPTH_WRITEMASK: number;
-    DITHER: number;
-    DONT_CARE: number;
-    DST_ALPHA: number;
-    DST_COLOR: number;
-    DYNAMIC_DRAW: number;
-    ELEMENT_ARRAY_BUFFER: number;
-    ELEMENT_ARRAY_BUFFER_BINDING: number;
-    EQUAL: number;
-    FASTEST: number;
-    FLOAT: number;
-    FLOAT_MAT2: number;
-    FLOAT_MAT3: number;
-    FLOAT_MAT4: number;
-    FLOAT_VEC2: number;
-    FLOAT_VEC3: number;
-    FLOAT_VEC4: number;
-    FRAGMENT_SHADER: number;
-    FRAMEBUFFER: number;
-    FRAMEBUFFER_ATTACHMENT_OBJECT_NAME: number;
-    FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE: number;
-    FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE: number;
-    FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL: number;
-    FRAMEBUFFER_BINDING: number;
-    FRAMEBUFFER_COMPLETE: number;
-    FRAMEBUFFER_INCOMPLETE_ATTACHMENT: number;
-    FRAMEBUFFER_INCOMPLETE_DIMENSIONS: number;
-    FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: number;
-    FRAMEBUFFER_UNSUPPORTED: number;
-    FRONT: number;
-    FRONT_AND_BACK: number;
-    FRONT_FACE: number;
-    FUNC_ADD: number;
-    FUNC_REVERSE_SUBTRACT: number;
-    FUNC_SUBTRACT: number;
-    GENERATE_MIPMAP_HINT: number;
-    GEQUAL: number;
-    GREATER: number;
-    GREEN_BITS: number;
-    HIGH_FLOAT: number;
-    HIGH_INT: number;
-    IMPLEMENTATION_COLOR_READ_FORMAT: number;
-    IMPLEMENTATION_COLOR_READ_TYPE: number;
-    INCR: number;
-    INCR_WRAP: number;
-    INT: number;
-    INT_VEC2: number;
-    INT_VEC3: number;
-    INT_VEC4: number;
-    INVALID_ENUM: number;
-    INVALID_FRAMEBUFFER_OPERATION: number;
-    INVALID_OPERATION: number;
-    INVALID_VALUE: number;
-    INVERT: number;
-    KEEP: number;
-    LEQUAL: number;
-    LESS: number;
-    LINEAR: number;
-    LINEAR_MIPMAP_LINEAR: number;
-    LINEAR_MIPMAP_NEAREST: number;
-    LINES: number;
-    LINE_LOOP: number;
-    LINE_STRIP: number;
-    LINE_WIDTH: number;
-    LINK_STATUS: number;
-    LOW_FLOAT: number;
-    LOW_INT: number;
-    LUMINANCE: number;
-    LUMINANCE_ALPHA: number;
-    MAX_COMBINED_TEXTURE_IMAGE_UNITS: number;
-    MAX_CUBE_MAP_TEXTURE_SIZE: number;
-    MAX_FRAGMENT_UNIFORM_VECTORS: number;
-    MAX_RENDERBUFFER_SIZE: number;
-    MAX_TEXTURE_IMAGE_UNITS: number;
-    MAX_TEXTURE_SIZE: number;
-    MAX_VARYING_VECTORS: number;
-    MAX_VERTEX_ATTRIBS: number;
-    MAX_VERTEX_TEXTURE_IMAGE_UNITS: number;
-    MAX_VERTEX_UNIFORM_VECTORS: number;
-    MAX_VIEWPORT_DIMS: number;
-    MEDIUM_FLOAT: number;
-    MEDIUM_INT: number;
-    MIRRORED_REPEAT: number;
-    NEAREST: number;
-    NEAREST_MIPMAP_LINEAR: number;
-    NEAREST_MIPMAP_NEAREST: number;
-    NEVER: number;
-    NICEST: number;
-    NONE: number;
-    NOTEQUAL: number;
-    NO_ERROR: number;
-    ONE: number;
-    ONE_MINUS_CONSTANT_ALPHA: number;
-    ONE_MINUS_CONSTANT_COLOR: number;
-    ONE_MINUS_DST_ALPHA: number;
-    ONE_MINUS_DST_COLOR: number;
-    ONE_MINUS_SRC_ALPHA: number;
-    ONE_MINUS_SRC_COLOR: number;
-    OUT_OF_MEMORY: number;
-    PACK_ALIGNMENT: number;
-    POINTS: number;
-    POLYGON_OFFSET_FACTOR: number;
-    POLYGON_OFFSET_FILL: number;
-    POLYGON_OFFSET_UNITS: number;
-    RED_BITS: number;
-    RENDERBUFFER: number;
-    RENDERBUFFER_ALPHA_SIZE: number;
-    RENDERBUFFER_BINDING: number;
-    RENDERBUFFER_BLUE_SIZE: number;
-    RENDERBUFFER_DEPTH_SIZE: number;
-    RENDERBUFFER_GREEN_SIZE: number;
-    RENDERBUFFER_HEIGHT: number;
-    RENDERBUFFER_INTERNAL_FORMAT: number;
-    RENDERBUFFER_RED_SIZE: number;
-    RENDERBUFFER_STENCIL_SIZE: number;
-    RENDERBUFFER_WIDTH: number;
-    RENDERER: number;
-    REPEAT: number;
-    REPLACE: number;
-    RGB: number;
-    RGB565: number;
-    RGB5_A1: number;
-    RGBA: number;
-    RGBA4: number;
-    SAMPLER_2D: number;
-    SAMPLER_CUBE: number;
-    SAMPLES: number;
-    SAMPLE_ALPHA_TO_COVERAGE: number;
-    SAMPLE_BUFFERS: number;
-    SAMPLE_COVERAGE: number;
-    SAMPLE_COVERAGE_INVERT: number;
-    SAMPLE_COVERAGE_VALUE: number;
-    SCISSOR_BOX: number;
-    SCISSOR_TEST: number;
-    SHADER_TYPE: number;
-    SHADING_LANGUAGE_VERSION: number;
-    SHORT: number;
-    SRC_ALPHA: number;
-    SRC_ALPHA_SATURATE: number;
-    SRC_COLOR: number;
-    STATIC_DRAW: number;
-    STENCIL_ATTACHMENT: number;
-    STENCIL_BACK_FAIL: number;
-    STENCIL_BACK_FUNC: number;
-    STENCIL_BACK_PASS_DEPTH_FAIL: number;
-    STENCIL_BACK_PASS_DEPTH_PASS: number;
-    STENCIL_BACK_REF: number;
-    STENCIL_BACK_VALUE_MASK: number;
-    STENCIL_BACK_WRITEMASK: number;
-    STENCIL_BITS: number;
-    STENCIL_BUFFER_BIT: number;
-    STENCIL_CLEAR_VALUE: number;
-    STENCIL_FAIL: number;
-    STENCIL_FUNC: number;
-    STENCIL_INDEX: number;
-    STENCIL_INDEX8: number;
-    STENCIL_PASS_DEPTH_FAIL: number;
-    STENCIL_PASS_DEPTH_PASS: number;
-    STENCIL_REF: number;
-    STENCIL_TEST: number;
-    STENCIL_VALUE_MASK: number;
-    STENCIL_WRITEMASK: number;
-    STREAM_DRAW: number;
-    SUBPIXEL_BITS: number;
-    TEXTURE: number;
-    TEXTURE0: number;
-    TEXTURE1: number;
-    TEXTURE10: number;
-    TEXTURE11: number;
-    TEXTURE12: number;
-    TEXTURE13: number;
-    TEXTURE14: number;
-    TEXTURE15: number;
-    TEXTURE16: number;
-    TEXTURE17: number;
-    TEXTURE18: number;
-    TEXTURE19: number;
-    TEXTURE2: number;
-    TEXTURE20: number;
-    TEXTURE21: number;
-    TEXTURE22: number;
-    TEXTURE23: number;
-    TEXTURE24: number;
-    TEXTURE25: number;
-    TEXTURE26: number;
-    TEXTURE27: number;
-    TEXTURE28: number;
-    TEXTURE29: number;
-    TEXTURE3: number;
-    TEXTURE30: number;
-    TEXTURE31: number;
-    TEXTURE4: number;
-    TEXTURE5: number;
-    TEXTURE6: number;
-    TEXTURE7: number;
-    TEXTURE8: number;
-    TEXTURE9: number;
-    TEXTURE_2D: number;
-    TEXTURE_BINDING_2D: number;
-    TEXTURE_BINDING_CUBE_MAP: number;
-    TEXTURE_CUBE_MAP: number;
-    TEXTURE_CUBE_MAP_NEGATIVE_X: number;
-    TEXTURE_CUBE_MAP_NEGATIVE_Y: number;
-    TEXTURE_CUBE_MAP_NEGATIVE_Z: number;
-    TEXTURE_CUBE_MAP_POSITIVE_X: number;
-    TEXTURE_CUBE_MAP_POSITIVE_Y: number;
-    TEXTURE_CUBE_MAP_POSITIVE_Z: number;
-    TEXTURE_MAG_FILTER: number;
-    TEXTURE_MIN_FILTER: number;
-    TEXTURE_WRAP_S: number;
-    TEXTURE_WRAP_T: number;
-    TRIANGLES: number;
-    TRIANGLE_FAN: number;
-    TRIANGLE_STRIP: number;
-    UNPACK_ALIGNMENT: number;
-    UNPACK_COLORSPACE_CONVERSION_WEBGL: number;
-    UNPACK_FLIP_Y_WEBGL: number;
-    UNPACK_PREMULTIPLY_ALPHA_WEBGL: number;
-    UNSIGNED_BYTE: number;
-    UNSIGNED_INT: number;
-    UNSIGNED_SHORT: number;
-    UNSIGNED_SHORT_4_4_4_4: number;
-    UNSIGNED_SHORT_5_5_5_1: number;
-    UNSIGNED_SHORT_5_6_5: number;
-    VALIDATE_STATUS: number;
-    VENDOR: number;
-    VERSION: number;
-    VERTEX_ATTRIB_ARRAY_BUFFER_BINDING: number;
-    VERTEX_ATTRIB_ARRAY_ENABLED: number;
-    VERTEX_ATTRIB_ARRAY_NORMALIZED: number;
-    VERTEX_ATTRIB_ARRAY_POINTER: number;
-    VERTEX_ATTRIB_ARRAY_SIZE: number;
-    VERTEX_ATTRIB_ARRAY_STRIDE: number;
-    VERTEX_ATTRIB_ARRAY_TYPE: number;
-    VERTEX_SHADER: number;
-    VIEWPORT: number;
-    ZERO: number;
+    readonly ACTIVE_ATTRIBUTES: number;
+    readonly ACTIVE_TEXTURE: number;
+    readonly ACTIVE_UNIFORMS: number;
+    readonly ALIASED_LINE_WIDTH_RANGE: number;
+    readonly ALIASED_POINT_SIZE_RANGE: number;
+    readonly ALPHA: number;
+    readonly ALPHA_BITS: number;
+    readonly ALWAYS: number;
+    readonly ARRAY_BUFFER: number;
+    readonly ARRAY_BUFFER_BINDING: number;
+    readonly ATTACHED_SHADERS: number;
+    readonly BACK: number;
+    readonly BLEND: number;
+    readonly BLEND_COLOR: number;
+    readonly BLEND_DST_ALPHA: number;
+    readonly BLEND_DST_RGB: number;
+    readonly BLEND_EQUATION: number;
+    readonly BLEND_EQUATION_ALPHA: number;
+    readonly BLEND_EQUATION_RGB: number;
+    readonly BLEND_SRC_ALPHA: number;
+    readonly BLEND_SRC_RGB: number;
+    readonly BLUE_BITS: number;
+    readonly BOOL: number;
+    readonly BOOL_VEC2: number;
+    readonly BOOL_VEC3: number;
+    readonly BOOL_VEC4: number;
+    readonly BROWSER_DEFAULT_WEBGL: number;
+    readonly BUFFER_SIZE: number;
+    readonly BUFFER_USAGE: number;
+    readonly BYTE: number;
+    readonly CCW: number;
+    readonly CLAMP_TO_EDGE: number;
+    readonly COLOR_ATTACHMENT0: number;
+    readonly COLOR_BUFFER_BIT: number;
+    readonly COLOR_CLEAR_VALUE: number;
+    readonly COLOR_WRITEMASK: number;
+    readonly COMPILE_STATUS: number;
+    readonly COMPRESSED_TEXTURE_FORMATS: number;
+    readonly CONSTANT_ALPHA: number;
+    readonly CONSTANT_COLOR: number;
+    readonly CONTEXT_LOST_WEBGL: number;
+    readonly CULL_FACE: number;
+    readonly CULL_FACE_MODE: number;
+    readonly CURRENT_PROGRAM: number;
+    readonly CURRENT_VERTEX_ATTRIB: number;
+    readonly CW: number;
+    readonly DECR: number;
+    readonly DECR_WRAP: number;
+    readonly DELETE_STATUS: number;
+    readonly DEPTH_ATTACHMENT: number;
+    readonly DEPTH_BITS: number;
+    readonly DEPTH_BUFFER_BIT: number;
+    readonly DEPTH_CLEAR_VALUE: number;
+    readonly DEPTH_COMPONENT: number;
+    readonly DEPTH_COMPONENT16: number;
+    readonly DEPTH_FUNC: number;
+    readonly DEPTH_RANGE: number;
+    readonly DEPTH_STENCIL: number;
+    readonly DEPTH_STENCIL_ATTACHMENT: number;
+    readonly DEPTH_TEST: number;
+    readonly DEPTH_WRITEMASK: number;
+    readonly DITHER: number;
+    readonly DONT_CARE: number;
+    readonly DST_ALPHA: number;
+    readonly DST_COLOR: number;
+    readonly DYNAMIC_DRAW: number;
+    readonly ELEMENT_ARRAY_BUFFER: number;
+    readonly ELEMENT_ARRAY_BUFFER_BINDING: number;
+    readonly EQUAL: number;
+    readonly FASTEST: number;
+    readonly FLOAT: number;
+    readonly FLOAT_MAT2: number;
+    readonly FLOAT_MAT3: number;
+    readonly FLOAT_MAT4: number;
+    readonly FLOAT_VEC2: number;
+    readonly FLOAT_VEC3: number;
+    readonly FLOAT_VEC4: number;
+    readonly FRAGMENT_SHADER: number;
+    readonly FRAMEBUFFER: number;
+    readonly FRAMEBUFFER_ATTACHMENT_OBJECT_NAME: number;
+    readonly FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE: number;
+    readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE: number;
+    readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL: number;
+    readonly FRAMEBUFFER_BINDING: number;
+    readonly FRAMEBUFFER_COMPLETE: number;
+    readonly FRAMEBUFFER_INCOMPLETE_ATTACHMENT: number;
+    readonly FRAMEBUFFER_INCOMPLETE_DIMENSIONS: number;
+    readonly FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: number;
+    readonly FRAMEBUFFER_UNSUPPORTED: number;
+    readonly FRONT: number;
+    readonly FRONT_AND_BACK: number;
+    readonly FRONT_FACE: number;
+    readonly FUNC_ADD: number;
+    readonly FUNC_REVERSE_SUBTRACT: number;
+    readonly FUNC_SUBTRACT: number;
+    readonly GENERATE_MIPMAP_HINT: number;
+    readonly GEQUAL: number;
+    readonly GREATER: number;
+    readonly GREEN_BITS: number;
+    readonly HIGH_FLOAT: number;
+    readonly HIGH_INT: number;
+    readonly IMPLEMENTATION_COLOR_READ_FORMAT: number;
+    readonly IMPLEMENTATION_COLOR_READ_TYPE: number;
+    readonly INCR: number;
+    readonly INCR_WRAP: number;
+    readonly INT: number;
+    readonly INT_VEC2: number;
+    readonly INT_VEC3: number;
+    readonly INT_VEC4: number;
+    readonly INVALID_ENUM: number;
+    readonly INVALID_FRAMEBUFFER_OPERATION: number;
+    readonly INVALID_OPERATION: number;
+    readonly INVALID_VALUE: number;
+    readonly INVERT: number;
+    readonly KEEP: number;
+    readonly LEQUAL: number;
+    readonly LESS: number;
+    readonly LINEAR: number;
+    readonly LINEAR_MIPMAP_LINEAR: number;
+    readonly LINEAR_MIPMAP_NEAREST: number;
+    readonly LINES: number;
+    readonly LINE_LOOP: number;
+    readonly LINE_STRIP: number;
+    readonly LINE_WIDTH: number;
+    readonly LINK_STATUS: number;
+    readonly LOW_FLOAT: number;
+    readonly LOW_INT: number;
+    readonly LUMINANCE: number;
+    readonly LUMINANCE_ALPHA: number;
+    readonly MAX_COMBINED_TEXTURE_IMAGE_UNITS: number;
+    readonly MAX_CUBE_MAP_TEXTURE_SIZE: number;
+    readonly MAX_FRAGMENT_UNIFORM_VECTORS: number;
+    readonly MAX_RENDERBUFFER_SIZE: number;
+    readonly MAX_TEXTURE_IMAGE_UNITS: number;
+    readonly MAX_TEXTURE_SIZE: number;
+    readonly MAX_VARYING_VECTORS: number;
+    readonly MAX_VERTEX_ATTRIBS: number;
+    readonly MAX_VERTEX_TEXTURE_IMAGE_UNITS: number;
+    readonly MAX_VERTEX_UNIFORM_VECTORS: number;
+    readonly MAX_VIEWPORT_DIMS: number;
+    readonly MEDIUM_FLOAT: number;
+    readonly MEDIUM_INT: number;
+    readonly MIRRORED_REPEAT: number;
+    readonly NEAREST: number;
+    readonly NEAREST_MIPMAP_LINEAR: number;
+    readonly NEAREST_MIPMAP_NEAREST: number;
+    readonly NEVER: number;
+    readonly NICEST: number;
+    readonly NONE: number;
+    readonly NOTEQUAL: number;
+    readonly NO_ERROR: number;
+    readonly ONE: number;
+    readonly ONE_MINUS_CONSTANT_ALPHA: number;
+    readonly ONE_MINUS_CONSTANT_COLOR: number;
+    readonly ONE_MINUS_DST_ALPHA: number;
+    readonly ONE_MINUS_DST_COLOR: number;
+    readonly ONE_MINUS_SRC_ALPHA: number;
+    readonly ONE_MINUS_SRC_COLOR: number;
+    readonly OUT_OF_MEMORY: number;
+    readonly PACK_ALIGNMENT: number;
+    readonly POINTS: number;
+    readonly POLYGON_OFFSET_FACTOR: number;
+    readonly POLYGON_OFFSET_FILL: number;
+    readonly POLYGON_OFFSET_UNITS: number;
+    readonly RED_BITS: number;
+    readonly RENDERBUFFER: number;
+    readonly RENDERBUFFER_ALPHA_SIZE: number;
+    readonly RENDERBUFFER_BINDING: number;
+    readonly RENDERBUFFER_BLUE_SIZE: number;
+    readonly RENDERBUFFER_DEPTH_SIZE: number;
+    readonly RENDERBUFFER_GREEN_SIZE: number;
+    readonly RENDERBUFFER_HEIGHT: number;
+    readonly RENDERBUFFER_INTERNAL_FORMAT: number;
+    readonly RENDERBUFFER_RED_SIZE: number;
+    readonly RENDERBUFFER_STENCIL_SIZE: number;
+    readonly RENDERBUFFER_WIDTH: number;
+    readonly RENDERER: number;
+    readonly REPEAT: number;
+    readonly REPLACE: number;
+    readonly RGB: number;
+    readonly RGB565: number;
+    readonly RGB5_A1: number;
+    readonly RGBA: number;
+    readonly RGBA4: number;
+    readonly SAMPLER_2D: number;
+    readonly SAMPLER_CUBE: number;
+    readonly SAMPLES: number;
+    readonly SAMPLE_ALPHA_TO_COVERAGE: number;
+    readonly SAMPLE_BUFFERS: number;
+    readonly SAMPLE_COVERAGE: number;
+    readonly SAMPLE_COVERAGE_INVERT: number;
+    readonly SAMPLE_COVERAGE_VALUE: number;
+    readonly SCISSOR_BOX: number;
+    readonly SCISSOR_TEST: number;
+    readonly SHADER_TYPE: number;
+    readonly SHADING_LANGUAGE_VERSION: number;
+    readonly SHORT: number;
+    readonly SRC_ALPHA: number;
+    readonly SRC_ALPHA_SATURATE: number;
+    readonly SRC_COLOR: number;
+    readonly STATIC_DRAW: number;
+    readonly STENCIL_ATTACHMENT: number;
+    readonly STENCIL_BACK_FAIL: number;
+    readonly STENCIL_BACK_FUNC: number;
+    readonly STENCIL_BACK_PASS_DEPTH_FAIL: number;
+    readonly STENCIL_BACK_PASS_DEPTH_PASS: number;
+    readonly STENCIL_BACK_REF: number;
+    readonly STENCIL_BACK_VALUE_MASK: number;
+    readonly STENCIL_BACK_WRITEMASK: number;
+    readonly STENCIL_BITS: number;
+    readonly STENCIL_BUFFER_BIT: number;
+    readonly STENCIL_CLEAR_VALUE: number;
+    readonly STENCIL_FAIL: number;
+    readonly STENCIL_FUNC: number;
+    readonly STENCIL_INDEX: number;
+    readonly STENCIL_INDEX8: number;
+    readonly STENCIL_PASS_DEPTH_FAIL: number;
+    readonly STENCIL_PASS_DEPTH_PASS: number;
+    readonly STENCIL_REF: number;
+    readonly STENCIL_TEST: number;
+    readonly STENCIL_VALUE_MASK: number;
+    readonly STENCIL_WRITEMASK: number;
+    readonly STREAM_DRAW: number;
+    readonly SUBPIXEL_BITS: number;
+    readonly TEXTURE: number;
+    readonly TEXTURE0: number;
+    readonly TEXTURE1: number;
+    readonly TEXTURE10: number;
+    readonly TEXTURE11: number;
+    readonly TEXTURE12: number;
+    readonly TEXTURE13: number;
+    readonly TEXTURE14: number;
+    readonly TEXTURE15: number;
+    readonly TEXTURE16: number;
+    readonly TEXTURE17: number;
+    readonly TEXTURE18: number;
+    readonly TEXTURE19: number;
+    readonly TEXTURE2: number;
+    readonly TEXTURE20: number;
+    readonly TEXTURE21: number;
+    readonly TEXTURE22: number;
+    readonly TEXTURE23: number;
+    readonly TEXTURE24: number;
+    readonly TEXTURE25: number;
+    readonly TEXTURE26: number;
+    readonly TEXTURE27: number;
+    readonly TEXTURE28: number;
+    readonly TEXTURE29: number;
+    readonly TEXTURE3: number;
+    readonly TEXTURE30: number;
+    readonly TEXTURE31: number;
+    readonly TEXTURE4: number;
+    readonly TEXTURE5: number;
+    readonly TEXTURE6: number;
+    readonly TEXTURE7: number;
+    readonly TEXTURE8: number;
+    readonly TEXTURE9: number;
+    readonly TEXTURE_2D: number;
+    readonly TEXTURE_BINDING_2D: number;
+    readonly TEXTURE_BINDING_CUBE_MAP: number;
+    readonly TEXTURE_CUBE_MAP: number;
+    readonly TEXTURE_CUBE_MAP_NEGATIVE_X: number;
+    readonly TEXTURE_CUBE_MAP_NEGATIVE_Y: number;
+    readonly TEXTURE_CUBE_MAP_NEGATIVE_Z: number;
+    readonly TEXTURE_CUBE_MAP_POSITIVE_X: number;
+    readonly TEXTURE_CUBE_MAP_POSITIVE_Y: number;
+    readonly TEXTURE_CUBE_MAP_POSITIVE_Z: number;
+    readonly TEXTURE_MAG_FILTER: number;
+    readonly TEXTURE_MIN_FILTER: number;
+    readonly TEXTURE_WRAP_S: number;
+    readonly TEXTURE_WRAP_T: number;
+    readonly TRIANGLES: number;
+    readonly TRIANGLE_FAN: number;
+    readonly TRIANGLE_STRIP: number;
+    readonly UNPACK_ALIGNMENT: number;
+    readonly UNPACK_COLORSPACE_CONVERSION_WEBGL: number;
+    readonly UNPACK_FLIP_Y_WEBGL: number;
+    readonly UNPACK_PREMULTIPLY_ALPHA_WEBGL: number;
+    readonly UNSIGNED_BYTE: number;
+    readonly UNSIGNED_INT: number;
+    readonly UNSIGNED_SHORT: number;
+    readonly UNSIGNED_SHORT_4_4_4_4: number;
+    readonly UNSIGNED_SHORT_5_5_5_1: number;
+    readonly UNSIGNED_SHORT_5_6_5: number;
+    readonly VALIDATE_STATUS: number;
+    readonly VENDOR: number;
+    readonly VERSION: number;
+    readonly VERTEX_ATTRIB_ARRAY_BUFFER_BINDING: number;
+    readonly VERTEX_ATTRIB_ARRAY_ENABLED: number;
+    readonly VERTEX_ATTRIB_ARRAY_NORMALIZED: number;
+    readonly VERTEX_ATTRIB_ARRAY_POINTER: number;
+    readonly VERTEX_ATTRIB_ARRAY_SIZE: number;
+    readonly VERTEX_ATTRIB_ARRAY_STRIDE: number;
+    readonly VERTEX_ATTRIB_ARRAY_TYPE: number;
+    readonly VERTEX_SHADER: number;
+    readonly VIEWPORT: number;
+    readonly ZERO: number;
 }
 
 declare var WebGLRenderingContext: {
     prototype: WebGLRenderingContext;
     new(): WebGLRenderingContext;
-    ACTIVE_ATTRIBUTES: number;
-    ACTIVE_TEXTURE: number;
-    ACTIVE_UNIFORMS: number;
-    ALIASED_LINE_WIDTH_RANGE: number;
-    ALIASED_POINT_SIZE_RANGE: number;
-    ALPHA: number;
-    ALPHA_BITS: number;
-    ALWAYS: number;
-    ARRAY_BUFFER: number;
-    ARRAY_BUFFER_BINDING: number;
-    ATTACHED_SHADERS: number;
-    BACK: number;
-    BLEND: number;
-    BLEND_COLOR: number;
-    BLEND_DST_ALPHA: number;
-    BLEND_DST_RGB: number;
-    BLEND_EQUATION: number;
-    BLEND_EQUATION_ALPHA: number;
-    BLEND_EQUATION_RGB: number;
-    BLEND_SRC_ALPHA: number;
-    BLEND_SRC_RGB: number;
-    BLUE_BITS: number;
-    BOOL: number;
-    BOOL_VEC2: number;
-    BOOL_VEC3: number;
-    BOOL_VEC4: number;
-    BROWSER_DEFAULT_WEBGL: number;
-    BUFFER_SIZE: number;
-    BUFFER_USAGE: number;
-    BYTE: number;
-    CCW: number;
-    CLAMP_TO_EDGE: number;
-    COLOR_ATTACHMENT0: number;
-    COLOR_BUFFER_BIT: number;
-    COLOR_CLEAR_VALUE: number;
-    COLOR_WRITEMASK: number;
-    COMPILE_STATUS: number;
-    COMPRESSED_TEXTURE_FORMATS: number;
-    CONSTANT_ALPHA: number;
-    CONSTANT_COLOR: number;
-    CONTEXT_LOST_WEBGL: number;
-    CULL_FACE: number;
-    CULL_FACE_MODE: number;
-    CURRENT_PROGRAM: number;
-    CURRENT_VERTEX_ATTRIB: number;
-    CW: number;
-    DECR: number;
-    DECR_WRAP: number;
-    DELETE_STATUS: number;
-    DEPTH_ATTACHMENT: number;
-    DEPTH_BITS: number;
-    DEPTH_BUFFER_BIT: number;
-    DEPTH_CLEAR_VALUE: number;
-    DEPTH_COMPONENT: number;
-    DEPTH_COMPONENT16: number;
-    DEPTH_FUNC: number;
-    DEPTH_RANGE: number;
-    DEPTH_STENCIL: number;
-    DEPTH_STENCIL_ATTACHMENT: number;
-    DEPTH_TEST: number;
-    DEPTH_WRITEMASK: number;
-    DITHER: number;
-    DONT_CARE: number;
-    DST_ALPHA: number;
-    DST_COLOR: number;
-    DYNAMIC_DRAW: number;
-    ELEMENT_ARRAY_BUFFER: number;
-    ELEMENT_ARRAY_BUFFER_BINDING: number;
-    EQUAL: number;
-    FASTEST: number;
-    FLOAT: number;
-    FLOAT_MAT2: number;
-    FLOAT_MAT3: number;
-    FLOAT_MAT4: number;
-    FLOAT_VEC2: number;
-    FLOAT_VEC3: number;
-    FLOAT_VEC4: number;
-    FRAGMENT_SHADER: number;
-    FRAMEBUFFER: number;
-    FRAMEBUFFER_ATTACHMENT_OBJECT_NAME: number;
-    FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE: number;
-    FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE: number;
-    FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL: number;
-    FRAMEBUFFER_BINDING: number;
-    FRAMEBUFFER_COMPLETE: number;
-    FRAMEBUFFER_INCOMPLETE_ATTACHMENT: number;
-    FRAMEBUFFER_INCOMPLETE_DIMENSIONS: number;
-    FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: number;
-    FRAMEBUFFER_UNSUPPORTED: number;
-    FRONT: number;
-    FRONT_AND_BACK: number;
-    FRONT_FACE: number;
-    FUNC_ADD: number;
-    FUNC_REVERSE_SUBTRACT: number;
-    FUNC_SUBTRACT: number;
-    GENERATE_MIPMAP_HINT: number;
-    GEQUAL: number;
-    GREATER: number;
-    GREEN_BITS: number;
-    HIGH_FLOAT: number;
-    HIGH_INT: number;
-    IMPLEMENTATION_COLOR_READ_FORMAT: number;
-    IMPLEMENTATION_COLOR_READ_TYPE: number;
-    INCR: number;
-    INCR_WRAP: number;
-    INT: number;
-    INT_VEC2: number;
-    INT_VEC3: number;
-    INT_VEC4: number;
-    INVALID_ENUM: number;
-    INVALID_FRAMEBUFFER_OPERATION: number;
-    INVALID_OPERATION: number;
-    INVALID_VALUE: number;
-    INVERT: number;
-    KEEP: number;
-    LEQUAL: number;
-    LESS: number;
-    LINEAR: number;
-    LINEAR_MIPMAP_LINEAR: number;
-    LINEAR_MIPMAP_NEAREST: number;
-    LINES: number;
-    LINE_LOOP: number;
-    LINE_STRIP: number;
-    LINE_WIDTH: number;
-    LINK_STATUS: number;
-    LOW_FLOAT: number;
-    LOW_INT: number;
-    LUMINANCE: number;
-    LUMINANCE_ALPHA: number;
-    MAX_COMBINED_TEXTURE_IMAGE_UNITS: number;
-    MAX_CUBE_MAP_TEXTURE_SIZE: number;
-    MAX_FRAGMENT_UNIFORM_VECTORS: number;
-    MAX_RENDERBUFFER_SIZE: number;
-    MAX_TEXTURE_IMAGE_UNITS: number;
-    MAX_TEXTURE_SIZE: number;
-    MAX_VARYING_VECTORS: number;
-    MAX_VERTEX_ATTRIBS: number;
-    MAX_VERTEX_TEXTURE_IMAGE_UNITS: number;
-    MAX_VERTEX_UNIFORM_VECTORS: number;
-    MAX_VIEWPORT_DIMS: number;
-    MEDIUM_FLOAT: number;
-    MEDIUM_INT: number;
-    MIRRORED_REPEAT: number;
-    NEAREST: number;
-    NEAREST_MIPMAP_LINEAR: number;
-    NEAREST_MIPMAP_NEAREST: number;
-    NEVER: number;
-    NICEST: number;
-    NONE: number;
-    NOTEQUAL: number;
-    NO_ERROR: number;
-    ONE: number;
-    ONE_MINUS_CONSTANT_ALPHA: number;
-    ONE_MINUS_CONSTANT_COLOR: number;
-    ONE_MINUS_DST_ALPHA: number;
-    ONE_MINUS_DST_COLOR: number;
-    ONE_MINUS_SRC_ALPHA: number;
-    ONE_MINUS_SRC_COLOR: number;
-    OUT_OF_MEMORY: number;
-    PACK_ALIGNMENT: number;
-    POINTS: number;
-    POLYGON_OFFSET_FACTOR: number;
-    POLYGON_OFFSET_FILL: number;
-    POLYGON_OFFSET_UNITS: number;
-    RED_BITS: number;
-    RENDERBUFFER: number;
-    RENDERBUFFER_ALPHA_SIZE: number;
-    RENDERBUFFER_BINDING: number;
-    RENDERBUFFER_BLUE_SIZE: number;
-    RENDERBUFFER_DEPTH_SIZE: number;
-    RENDERBUFFER_GREEN_SIZE: number;
-    RENDERBUFFER_HEIGHT: number;
-    RENDERBUFFER_INTERNAL_FORMAT: number;
-    RENDERBUFFER_RED_SIZE: number;
-    RENDERBUFFER_STENCIL_SIZE: number;
-    RENDERBUFFER_WIDTH: number;
-    RENDERER: number;
-    REPEAT: number;
-    REPLACE: number;
-    RGB: number;
-    RGB565: number;
-    RGB5_A1: number;
-    RGBA: number;
-    RGBA4: number;
-    SAMPLER_2D: number;
-    SAMPLER_CUBE: number;
-    SAMPLES: number;
-    SAMPLE_ALPHA_TO_COVERAGE: number;
-    SAMPLE_BUFFERS: number;
-    SAMPLE_COVERAGE: number;
-    SAMPLE_COVERAGE_INVERT: number;
-    SAMPLE_COVERAGE_VALUE: number;
-    SCISSOR_BOX: number;
-    SCISSOR_TEST: number;
-    SHADER_TYPE: number;
-    SHADING_LANGUAGE_VERSION: number;
-    SHORT: number;
-    SRC_ALPHA: number;
-    SRC_ALPHA_SATURATE: number;
-    SRC_COLOR: number;
-    STATIC_DRAW: number;
-    STENCIL_ATTACHMENT: number;
-    STENCIL_BACK_FAIL: number;
-    STENCIL_BACK_FUNC: number;
-    STENCIL_BACK_PASS_DEPTH_FAIL: number;
-    STENCIL_BACK_PASS_DEPTH_PASS: number;
-    STENCIL_BACK_REF: number;
-    STENCIL_BACK_VALUE_MASK: number;
-    STENCIL_BACK_WRITEMASK: number;
-    STENCIL_BITS: number;
-    STENCIL_BUFFER_BIT: number;
-    STENCIL_CLEAR_VALUE: number;
-    STENCIL_FAIL: number;
-    STENCIL_FUNC: number;
-    STENCIL_INDEX: number;
-    STENCIL_INDEX8: number;
-    STENCIL_PASS_DEPTH_FAIL: number;
-    STENCIL_PASS_DEPTH_PASS: number;
-    STENCIL_REF: number;
-    STENCIL_TEST: number;
-    STENCIL_VALUE_MASK: number;
-    STENCIL_WRITEMASK: number;
-    STREAM_DRAW: number;
-    SUBPIXEL_BITS: number;
-    TEXTURE: number;
-    TEXTURE0: number;
-    TEXTURE1: number;
-    TEXTURE10: number;
-    TEXTURE11: number;
-    TEXTURE12: number;
-    TEXTURE13: number;
-    TEXTURE14: number;
-    TEXTURE15: number;
-    TEXTURE16: number;
-    TEXTURE17: number;
-    TEXTURE18: number;
-    TEXTURE19: number;
-    TEXTURE2: number;
-    TEXTURE20: number;
-    TEXTURE21: number;
-    TEXTURE22: number;
-    TEXTURE23: number;
-    TEXTURE24: number;
-    TEXTURE25: number;
-    TEXTURE26: number;
-    TEXTURE27: number;
-    TEXTURE28: number;
-    TEXTURE29: number;
-    TEXTURE3: number;
-    TEXTURE30: number;
-    TEXTURE31: number;
-    TEXTURE4: number;
-    TEXTURE5: number;
-    TEXTURE6: number;
-    TEXTURE7: number;
-    TEXTURE8: number;
-    TEXTURE9: number;
-    TEXTURE_2D: number;
-    TEXTURE_BINDING_2D: number;
-    TEXTURE_BINDING_CUBE_MAP: number;
-    TEXTURE_CUBE_MAP: number;
-    TEXTURE_CUBE_MAP_NEGATIVE_X: number;
-    TEXTURE_CUBE_MAP_NEGATIVE_Y: number;
-    TEXTURE_CUBE_MAP_NEGATIVE_Z: number;
-    TEXTURE_CUBE_MAP_POSITIVE_X: number;
-    TEXTURE_CUBE_MAP_POSITIVE_Y: number;
-    TEXTURE_CUBE_MAP_POSITIVE_Z: number;
-    TEXTURE_MAG_FILTER: number;
-    TEXTURE_MIN_FILTER: number;
-    TEXTURE_WRAP_S: number;
-    TEXTURE_WRAP_T: number;
-    TRIANGLES: number;
-    TRIANGLE_FAN: number;
-    TRIANGLE_STRIP: number;
-    UNPACK_ALIGNMENT: number;
-    UNPACK_COLORSPACE_CONVERSION_WEBGL: number;
-    UNPACK_FLIP_Y_WEBGL: number;
-    UNPACK_PREMULTIPLY_ALPHA_WEBGL: number;
-    UNSIGNED_BYTE: number;
-    UNSIGNED_INT: number;
-    UNSIGNED_SHORT: number;
-    UNSIGNED_SHORT_4_4_4_4: number;
-    UNSIGNED_SHORT_5_5_5_1: number;
-    UNSIGNED_SHORT_5_6_5: number;
-    VALIDATE_STATUS: number;
-    VENDOR: number;
-    VERSION: number;
-    VERTEX_ATTRIB_ARRAY_BUFFER_BINDING: number;
-    VERTEX_ATTRIB_ARRAY_ENABLED: number;
-    VERTEX_ATTRIB_ARRAY_NORMALIZED: number;
-    VERTEX_ATTRIB_ARRAY_POINTER: number;
-    VERTEX_ATTRIB_ARRAY_SIZE: number;
-    VERTEX_ATTRIB_ARRAY_STRIDE: number;
-    VERTEX_ATTRIB_ARRAY_TYPE: number;
-    VERTEX_SHADER: number;
-    VIEWPORT: number;
-    ZERO: number;
+    readonly ACTIVE_ATTRIBUTES: number;
+    readonly ACTIVE_TEXTURE: number;
+    readonly ACTIVE_UNIFORMS: number;
+    readonly ALIASED_LINE_WIDTH_RANGE: number;
+    readonly ALIASED_POINT_SIZE_RANGE: number;
+    readonly ALPHA: number;
+    readonly ALPHA_BITS: number;
+    readonly ALWAYS: number;
+    readonly ARRAY_BUFFER: number;
+    readonly ARRAY_BUFFER_BINDING: number;
+    readonly ATTACHED_SHADERS: number;
+    readonly BACK: number;
+    readonly BLEND: number;
+    readonly BLEND_COLOR: number;
+    readonly BLEND_DST_ALPHA: number;
+    readonly BLEND_DST_RGB: number;
+    readonly BLEND_EQUATION: number;
+    readonly BLEND_EQUATION_ALPHA: number;
+    readonly BLEND_EQUATION_RGB: number;
+    readonly BLEND_SRC_ALPHA: number;
+    readonly BLEND_SRC_RGB: number;
+    readonly BLUE_BITS: number;
+    readonly BOOL: number;
+    readonly BOOL_VEC2: number;
+    readonly BOOL_VEC3: number;
+    readonly BOOL_VEC4: number;
+    readonly BROWSER_DEFAULT_WEBGL: number;
+    readonly BUFFER_SIZE: number;
+    readonly BUFFER_USAGE: number;
+    readonly BYTE: number;
+    readonly CCW: number;
+    readonly CLAMP_TO_EDGE: number;
+    readonly COLOR_ATTACHMENT0: number;
+    readonly COLOR_BUFFER_BIT: number;
+    readonly COLOR_CLEAR_VALUE: number;
+    readonly COLOR_WRITEMASK: number;
+    readonly COMPILE_STATUS: number;
+    readonly COMPRESSED_TEXTURE_FORMATS: number;
+    readonly CONSTANT_ALPHA: number;
+    readonly CONSTANT_COLOR: number;
+    readonly CONTEXT_LOST_WEBGL: number;
+    readonly CULL_FACE: number;
+    readonly CULL_FACE_MODE: number;
+    readonly CURRENT_PROGRAM: number;
+    readonly CURRENT_VERTEX_ATTRIB: number;
+    readonly CW: number;
+    readonly DECR: number;
+    readonly DECR_WRAP: number;
+    readonly DELETE_STATUS: number;
+    readonly DEPTH_ATTACHMENT: number;
+    readonly DEPTH_BITS: number;
+    readonly DEPTH_BUFFER_BIT: number;
+    readonly DEPTH_CLEAR_VALUE: number;
+    readonly DEPTH_COMPONENT: number;
+    readonly DEPTH_COMPONENT16: number;
+    readonly DEPTH_FUNC: number;
+    readonly DEPTH_RANGE: number;
+    readonly DEPTH_STENCIL: number;
+    readonly DEPTH_STENCIL_ATTACHMENT: number;
+    readonly DEPTH_TEST: number;
+    readonly DEPTH_WRITEMASK: number;
+    readonly DITHER: number;
+    readonly DONT_CARE: number;
+    readonly DST_ALPHA: number;
+    readonly DST_COLOR: number;
+    readonly DYNAMIC_DRAW: number;
+    readonly ELEMENT_ARRAY_BUFFER: number;
+    readonly ELEMENT_ARRAY_BUFFER_BINDING: number;
+    readonly EQUAL: number;
+    readonly FASTEST: number;
+    readonly FLOAT: number;
+    readonly FLOAT_MAT2: number;
+    readonly FLOAT_MAT3: number;
+    readonly FLOAT_MAT4: number;
+    readonly FLOAT_VEC2: number;
+    readonly FLOAT_VEC3: number;
+    readonly FLOAT_VEC4: number;
+    readonly FRAGMENT_SHADER: number;
+    readonly FRAMEBUFFER: number;
+    readonly FRAMEBUFFER_ATTACHMENT_OBJECT_NAME: number;
+    readonly FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE: number;
+    readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE: number;
+    readonly FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL: number;
+    readonly FRAMEBUFFER_BINDING: number;
+    readonly FRAMEBUFFER_COMPLETE: number;
+    readonly FRAMEBUFFER_INCOMPLETE_ATTACHMENT: number;
+    readonly FRAMEBUFFER_INCOMPLETE_DIMENSIONS: number;
+    readonly FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: number;
+    readonly FRAMEBUFFER_UNSUPPORTED: number;
+    readonly FRONT: number;
+    readonly FRONT_AND_BACK: number;
+    readonly FRONT_FACE: number;
+    readonly FUNC_ADD: number;
+    readonly FUNC_REVERSE_SUBTRACT: number;
+    readonly FUNC_SUBTRACT: number;
+    readonly GENERATE_MIPMAP_HINT: number;
+    readonly GEQUAL: number;
+    readonly GREATER: number;
+    readonly GREEN_BITS: number;
+    readonly HIGH_FLOAT: number;
+    readonly HIGH_INT: number;
+    readonly IMPLEMENTATION_COLOR_READ_FORMAT: number;
+    readonly IMPLEMENTATION_COLOR_READ_TYPE: number;
+    readonly INCR: number;
+    readonly INCR_WRAP: number;
+    readonly INT: number;
+    readonly INT_VEC2: number;
+    readonly INT_VEC3: number;
+    readonly INT_VEC4: number;
+    readonly INVALID_ENUM: number;
+    readonly INVALID_FRAMEBUFFER_OPERATION: number;
+    readonly INVALID_OPERATION: number;
+    readonly INVALID_VALUE: number;
+    readonly INVERT: number;
+    readonly KEEP: number;
+    readonly LEQUAL: number;
+    readonly LESS: number;
+    readonly LINEAR: number;
+    readonly LINEAR_MIPMAP_LINEAR: number;
+    readonly LINEAR_MIPMAP_NEAREST: number;
+    readonly LINES: number;
+    readonly LINE_LOOP: number;
+    readonly LINE_STRIP: number;
+    readonly LINE_WIDTH: number;
+    readonly LINK_STATUS: number;
+    readonly LOW_FLOAT: number;
+    readonly LOW_INT: number;
+    readonly LUMINANCE: number;
+    readonly LUMINANCE_ALPHA: number;
+    readonly MAX_COMBINED_TEXTURE_IMAGE_UNITS: number;
+    readonly MAX_CUBE_MAP_TEXTURE_SIZE: number;
+    readonly MAX_FRAGMENT_UNIFORM_VECTORS: number;
+    readonly MAX_RENDERBUFFER_SIZE: number;
+    readonly MAX_TEXTURE_IMAGE_UNITS: number;
+    readonly MAX_TEXTURE_SIZE: number;
+    readonly MAX_VARYING_VECTORS: number;
+    readonly MAX_VERTEX_ATTRIBS: number;
+    readonly MAX_VERTEX_TEXTURE_IMAGE_UNITS: number;
+    readonly MAX_VERTEX_UNIFORM_VECTORS: number;
+    readonly MAX_VIEWPORT_DIMS: number;
+    readonly MEDIUM_FLOAT: number;
+    readonly MEDIUM_INT: number;
+    readonly MIRRORED_REPEAT: number;
+    readonly NEAREST: number;
+    readonly NEAREST_MIPMAP_LINEAR: number;
+    readonly NEAREST_MIPMAP_NEAREST: number;
+    readonly NEVER: number;
+    readonly NICEST: number;
+    readonly NONE: number;
+    readonly NOTEQUAL: number;
+    readonly NO_ERROR: number;
+    readonly ONE: number;
+    readonly ONE_MINUS_CONSTANT_ALPHA: number;
+    readonly ONE_MINUS_CONSTANT_COLOR: number;
+    readonly ONE_MINUS_DST_ALPHA: number;
+    readonly ONE_MINUS_DST_COLOR: number;
+    readonly ONE_MINUS_SRC_ALPHA: number;
+    readonly ONE_MINUS_SRC_COLOR: number;
+    readonly OUT_OF_MEMORY: number;
+    readonly PACK_ALIGNMENT: number;
+    readonly POINTS: number;
+    readonly POLYGON_OFFSET_FACTOR: number;
+    readonly POLYGON_OFFSET_FILL: number;
+    readonly POLYGON_OFFSET_UNITS: number;
+    readonly RED_BITS: number;
+    readonly RENDERBUFFER: number;
+    readonly RENDERBUFFER_ALPHA_SIZE: number;
+    readonly RENDERBUFFER_BINDING: number;
+    readonly RENDERBUFFER_BLUE_SIZE: number;
+    readonly RENDERBUFFER_DEPTH_SIZE: number;
+    readonly RENDERBUFFER_GREEN_SIZE: number;
+    readonly RENDERBUFFER_HEIGHT: number;
+    readonly RENDERBUFFER_INTERNAL_FORMAT: number;
+    readonly RENDERBUFFER_RED_SIZE: number;
+    readonly RENDERBUFFER_STENCIL_SIZE: number;
+    readonly RENDERBUFFER_WIDTH: number;
+    readonly RENDERER: number;
+    readonly REPEAT: number;
+    readonly REPLACE: number;
+    readonly RGB: number;
+    readonly RGB565: number;
+    readonly RGB5_A1: number;
+    readonly RGBA: number;
+    readonly RGBA4: number;
+    readonly SAMPLER_2D: number;
+    readonly SAMPLER_CUBE: number;
+    readonly SAMPLES: number;
+    readonly SAMPLE_ALPHA_TO_COVERAGE: number;
+    readonly SAMPLE_BUFFERS: number;
+    readonly SAMPLE_COVERAGE: number;
+    readonly SAMPLE_COVERAGE_INVERT: number;
+    readonly SAMPLE_COVERAGE_VALUE: number;
+    readonly SCISSOR_BOX: number;
+    readonly SCISSOR_TEST: number;
+    readonly SHADER_TYPE: number;
+    readonly SHADING_LANGUAGE_VERSION: number;
+    readonly SHORT: number;
+    readonly SRC_ALPHA: number;
+    readonly SRC_ALPHA_SATURATE: number;
+    readonly SRC_COLOR: number;
+    readonly STATIC_DRAW: number;
+    readonly STENCIL_ATTACHMENT: number;
+    readonly STENCIL_BACK_FAIL: number;
+    readonly STENCIL_BACK_FUNC: number;
+    readonly STENCIL_BACK_PASS_DEPTH_FAIL: number;
+    readonly STENCIL_BACK_PASS_DEPTH_PASS: number;
+    readonly STENCIL_BACK_REF: number;
+    readonly STENCIL_BACK_VALUE_MASK: number;
+    readonly STENCIL_BACK_WRITEMASK: number;
+    readonly STENCIL_BITS: number;
+    readonly STENCIL_BUFFER_BIT: number;
+    readonly STENCIL_CLEAR_VALUE: number;
+    readonly STENCIL_FAIL: number;
+    readonly STENCIL_FUNC: number;
+    readonly STENCIL_INDEX: number;
+    readonly STENCIL_INDEX8: number;
+    readonly STENCIL_PASS_DEPTH_FAIL: number;
+    readonly STENCIL_PASS_DEPTH_PASS: number;
+    readonly STENCIL_REF: number;
+    readonly STENCIL_TEST: number;
+    readonly STENCIL_VALUE_MASK: number;
+    readonly STENCIL_WRITEMASK: number;
+    readonly STREAM_DRAW: number;
+    readonly SUBPIXEL_BITS: number;
+    readonly TEXTURE: number;
+    readonly TEXTURE0: number;
+    readonly TEXTURE1: number;
+    readonly TEXTURE10: number;
+    readonly TEXTURE11: number;
+    readonly TEXTURE12: number;
+    readonly TEXTURE13: number;
+    readonly TEXTURE14: number;
+    readonly TEXTURE15: number;
+    readonly TEXTURE16: number;
+    readonly TEXTURE17: number;
+    readonly TEXTURE18: number;
+    readonly TEXTURE19: number;
+    readonly TEXTURE2: number;
+    readonly TEXTURE20: number;
+    readonly TEXTURE21: number;
+    readonly TEXTURE22: number;
+    readonly TEXTURE23: number;
+    readonly TEXTURE24: number;
+    readonly TEXTURE25: number;
+    readonly TEXTURE26: number;
+    readonly TEXTURE27: number;
+    readonly TEXTURE28: number;
+    readonly TEXTURE29: number;
+    readonly TEXTURE3: number;
+    readonly TEXTURE30: number;
+    readonly TEXTURE31: number;
+    readonly TEXTURE4: number;
+    readonly TEXTURE5: number;
+    readonly TEXTURE6: number;
+    readonly TEXTURE7: number;
+    readonly TEXTURE8: number;
+    readonly TEXTURE9: number;
+    readonly TEXTURE_2D: number;
+    readonly TEXTURE_BINDING_2D: number;
+    readonly TEXTURE_BINDING_CUBE_MAP: number;
+    readonly TEXTURE_CUBE_MAP: number;
+    readonly TEXTURE_CUBE_MAP_NEGATIVE_X: number;
+    readonly TEXTURE_CUBE_MAP_NEGATIVE_Y: number;
+    readonly TEXTURE_CUBE_MAP_NEGATIVE_Z: number;
+    readonly TEXTURE_CUBE_MAP_POSITIVE_X: number;
+    readonly TEXTURE_CUBE_MAP_POSITIVE_Y: number;
+    readonly TEXTURE_CUBE_MAP_POSITIVE_Z: number;
+    readonly TEXTURE_MAG_FILTER: number;
+    readonly TEXTURE_MIN_FILTER: number;
+    readonly TEXTURE_WRAP_S: number;
+    readonly TEXTURE_WRAP_T: number;
+    readonly TRIANGLES: number;
+    readonly TRIANGLE_FAN: number;
+    readonly TRIANGLE_STRIP: number;
+    readonly UNPACK_ALIGNMENT: number;
+    readonly UNPACK_COLORSPACE_CONVERSION_WEBGL: number;
+    readonly UNPACK_FLIP_Y_WEBGL: number;
+    readonly UNPACK_PREMULTIPLY_ALPHA_WEBGL: number;
+    readonly UNSIGNED_BYTE: number;
+    readonly UNSIGNED_INT: number;
+    readonly UNSIGNED_SHORT: number;
+    readonly UNSIGNED_SHORT_4_4_4_4: number;
+    readonly UNSIGNED_SHORT_5_5_5_1: number;
+    readonly UNSIGNED_SHORT_5_6_5: number;
+    readonly VALIDATE_STATUS: number;
+    readonly VENDOR: number;
+    readonly VERSION: number;
+    readonly VERTEX_ATTRIB_ARRAY_BUFFER_BINDING: number;
+    readonly VERTEX_ATTRIB_ARRAY_ENABLED: number;
+    readonly VERTEX_ATTRIB_ARRAY_NORMALIZED: number;
+    readonly VERTEX_ATTRIB_ARRAY_POINTER: number;
+    readonly VERTEX_ATTRIB_ARRAY_SIZE: number;
+    readonly VERTEX_ATTRIB_ARRAY_STRIDE: number;
+    readonly VERTEX_ATTRIB_ARRAY_TYPE: number;
+    readonly VERTEX_SHADER: number;
+    readonly VIEWPORT: number;
+    readonly ZERO: number;
 }
 
 interface WebGLShader extends WebGLObject {
@@ -17066,9 +18451,9 @@ declare var WebGLShader: {
 }
 
 interface WebGLShaderPrecisionFormat {
-    precision: number;
-    rangeMax: number;
-    rangeMin: number;
+    readonly precision: number;
+    readonly rangeMax: number;
+    readonly rangeMin: number;
 }
 
 declare var WebGLShaderPrecisionFormat: {
@@ -17144,196 +18529,201 @@ declare var WebKitPoint: {
 
 interface WebSocket extends EventTarget {
     binaryType: string;
-    bufferedAmount: number;
-    extensions: string;
-    onclose: (ev: CloseEvent) => any;
-    onerror: (ev: Event) => any;
-    onmessage: (ev: MessageEvent) => any;
-    onopen: (ev: Event) => any;
-    protocol: string;
-    readyState: number;
-    url: string;
+    readonly bufferedAmount: number;
+    readonly extensions: string;
+    onclose: (this: this, ev: CloseEvent) => any;
+    onerror: (this: this, ev: ErrorEvent) => any;
+    onmessage: (this: this, ev: MessageEvent) => any;
+    onopen: (this: this, ev: Event) => any;
+    readonly protocol: string;
+    readonly readyState: number;
+    readonly url: string;
     close(code?: number, reason?: string): void;
     send(data: any): void;
-    CLOSED: number;
-    CLOSING: number;
-    CONNECTING: number;
-    OPEN: number;
-    addEventListener(type: "close", listener: (ev: CloseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "message", listener: (ev: MessageEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "open", listener: (ev: Event) => any, useCapture?: boolean): void;
+    readonly CLOSED: number;
+    readonly CLOSING: number;
+    readonly CONNECTING: number;
+    readonly OPEN: number;
+    addEventListener(type: "close", listener: (this: this, ev: CloseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "open", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var WebSocket: {
     prototype: WebSocket;
     new(url: string, protocols?: string | string[]): WebSocket;
-    CLOSED: number;
-    CLOSING: number;
-    CONNECTING: number;
-    OPEN: number;
+    readonly CLOSED: number;
+    readonly CLOSING: number;
+    readonly CONNECTING: number;
+    readonly OPEN: number;
 }
 
 interface WheelEvent extends MouseEvent {
-    deltaMode: number;
-    deltaX: number;
-    deltaY: number;
-    deltaZ: number;
+    readonly deltaMode: number;
+    readonly deltaX: number;
+    readonly deltaY: number;
+    readonly deltaZ: number;
+    readonly wheelDelta: number;
+    readonly wheelDeltaX: number;
+    readonly wheelDeltaY: number;
     getCurrentPoint(element: Element): void;
     initWheelEvent(typeArg: string, canBubbleArg: boolean, cancelableArg: boolean, viewArg: Window, detailArg: number, screenXArg: number, screenYArg: number, clientXArg: number, clientYArg: number, buttonArg: number, relatedTargetArg: EventTarget, modifiersListArg: string, deltaXArg: number, deltaYArg: number, deltaZArg: number, deltaMode: number): void;
-    DOM_DELTA_LINE: number;
-    DOM_DELTA_PAGE: number;
-    DOM_DELTA_PIXEL: number;
+    readonly DOM_DELTA_LINE: number;
+    readonly DOM_DELTA_PAGE: number;
+    readonly DOM_DELTA_PIXEL: number;
 }
 
 declare var WheelEvent: {
     prototype: WheelEvent;
     new(typeArg: string, eventInitDict?: WheelEventInit): WheelEvent;
-    DOM_DELTA_LINE: number;
-    DOM_DELTA_PAGE: number;
-    DOM_DELTA_PIXEL: number;
+    readonly DOM_DELTA_LINE: number;
+    readonly DOM_DELTA_PAGE: number;
+    readonly DOM_DELTA_PIXEL: number;
 }
 
 interface Window extends EventTarget, WindowTimers, WindowSessionStorage, WindowLocalStorage, WindowConsole, GlobalEventHandlers, IDBEnvironment, WindowBase64 {
-    animationStartTime: number;
-    applicationCache: ApplicationCache;
-    clientInformation: Navigator;
-    closed: boolean;
-    crypto: Crypto;
+    readonly applicationCache: ApplicationCache;
+    readonly clientInformation: Navigator;
+    readonly closed: boolean;
+    readonly crypto: Crypto;
     defaultStatus: string;
-    devicePixelRatio: number;
-    doNotTrack: string;
-    document: Document;
+    readonly devicePixelRatio: number;
+    readonly doNotTrack: string;
+    readonly document: Document;
     event: Event;
-    external: External;
-    frameElement: Element;
-    frames: Window;
-    history: History;
-    innerHeight: number;
-    innerWidth: number;
-    length: number;
-    location: Location;
-    locationbar: BarProp;
-    menubar: BarProp;
-    msAnimationStartTime: number;
+    readonly external: External;
+    readonly frameElement: Element;
+    readonly frames: Window;
+    readonly history: History;
+    readonly innerHeight: number;
+    readonly innerWidth: number;
+    readonly length: number;
+    readonly location: Location;
+    readonly locationbar: BarProp;
+    readonly menubar: BarProp;
+    readonly msCredentials: MSCredentials;
     name: string;
-    navigator: Navigator;
+    readonly navigator: Navigator;
     offscreenBuffering: string | boolean;
-    onabort: (ev: Event) => any;
-    onafterprint: (ev: Event) => any;
-    onbeforeprint: (ev: Event) => any;
-    onbeforeunload: (ev: BeforeUnloadEvent) => any;
-    onblur: (ev: FocusEvent) => any;
-    oncanplay: (ev: Event) => any;
-    oncanplaythrough: (ev: Event) => any;
-    onchange: (ev: Event) => any;
-    onclick: (ev: MouseEvent) => any;
-    oncompassneedscalibration: (ev: Event) => any;
-    oncontextmenu: (ev: PointerEvent) => any;
-    ondblclick: (ev: MouseEvent) => any;
-    ondevicemotion: (ev: DeviceMotionEvent) => any;
-    ondeviceorientation: (ev: DeviceOrientationEvent) => any;
-    ondrag: (ev: DragEvent) => any;
-    ondragend: (ev: DragEvent) => any;
-    ondragenter: (ev: DragEvent) => any;
-    ondragleave: (ev: DragEvent) => any;
-    ondragover: (ev: DragEvent) => any;
-    ondragstart: (ev: DragEvent) => any;
-    ondrop: (ev: DragEvent) => any;
-    ondurationchange: (ev: Event) => any;
-    onemptied: (ev: Event) => any;
-    onended: (ev: Event) => any;
+    onabort: (this: this, ev: UIEvent) => any;
+    onafterprint: (this: this, ev: Event) => any;
+    onbeforeprint: (this: this, ev: Event) => any;
+    onbeforeunload: (this: this, ev: BeforeUnloadEvent) => any;
+    onblur: (this: this, ev: FocusEvent) => any;
+    oncanplay: (this: this, ev: Event) => any;
+    oncanplaythrough: (this: this, ev: Event) => any;
+    onchange: (this: this, ev: Event) => any;
+    onclick: (this: this, ev: MouseEvent) => any;
+    oncompassneedscalibration: (this: this, ev: Event) => any;
+    oncontextmenu: (this: this, ev: PointerEvent) => any;
+    ondblclick: (this: this, ev: MouseEvent) => any;
+    ondevicelight: (this: this, ev: DeviceLightEvent) => any;
+    ondevicemotion: (this: this, ev: DeviceMotionEvent) => any;
+    ondeviceorientation: (this: this, ev: DeviceOrientationEvent) => any;
+    ondrag: (this: this, ev: DragEvent) => any;
+    ondragend: (this: this, ev: DragEvent) => any;
+    ondragenter: (this: this, ev: DragEvent) => any;
+    ondragleave: (this: this, ev: DragEvent) => any;
+    ondragover: (this: this, ev: DragEvent) => any;
+    ondragstart: (this: this, ev: DragEvent) => any;
+    ondrop: (this: this, ev: DragEvent) => any;
+    ondurationchange: (this: this, ev: Event) => any;
+    onemptied: (this: this, ev: Event) => any;
+    onended: (this: this, ev: MediaStreamErrorEvent) => any;
     onerror: ErrorEventHandler;
-    onfocus: (ev: FocusEvent) => any;
-    onhashchange: (ev: HashChangeEvent) => any;
-    oninput: (ev: Event) => any;
-    onkeydown: (ev: KeyboardEvent) => any;
-    onkeypress: (ev: KeyboardEvent) => any;
-    onkeyup: (ev: KeyboardEvent) => any;
-    onload: (ev: Event) => any;
-    onloadeddata: (ev: Event) => any;
-    onloadedmetadata: (ev: Event) => any;
-    onloadstart: (ev: Event) => any;
-    onmessage: (ev: MessageEvent) => any;
-    onmousedown: (ev: MouseEvent) => any;
-    onmouseenter: (ev: MouseEvent) => any;
-    onmouseleave: (ev: MouseEvent) => any;
-    onmousemove: (ev: MouseEvent) => any;
-    onmouseout: (ev: MouseEvent) => any;
-    onmouseover: (ev: MouseEvent) => any;
-    onmouseup: (ev: MouseEvent) => any;
-    onmousewheel: (ev: MouseWheelEvent) => any;
-    onmsgesturechange: (ev: MSGestureEvent) => any;
-    onmsgesturedoubletap: (ev: MSGestureEvent) => any;
-    onmsgestureend: (ev: MSGestureEvent) => any;
-    onmsgesturehold: (ev: MSGestureEvent) => any;
-    onmsgesturestart: (ev: MSGestureEvent) => any;
-    onmsgesturetap: (ev: MSGestureEvent) => any;
-    onmsinertiastart: (ev: MSGestureEvent) => any;
-    onmspointercancel: (ev: MSPointerEvent) => any;
-    onmspointerdown: (ev: MSPointerEvent) => any;
-    onmspointerenter: (ev: MSPointerEvent) => any;
-    onmspointerleave: (ev: MSPointerEvent) => any;
-    onmspointermove: (ev: MSPointerEvent) => any;
-    onmspointerout: (ev: MSPointerEvent) => any;
-    onmspointerover: (ev: MSPointerEvent) => any;
-    onmspointerup: (ev: MSPointerEvent) => any;
-    onoffline: (ev: Event) => any;
-    ononline: (ev: Event) => any;
-    onorientationchange: (ev: Event) => any;
-    onpagehide: (ev: PageTransitionEvent) => any;
-    onpageshow: (ev: PageTransitionEvent) => any;
-    onpause: (ev: Event) => any;
-    onplay: (ev: Event) => any;
-    onplaying: (ev: Event) => any;
-    onpopstate: (ev: PopStateEvent) => any;
-    onprogress: (ev: ProgressEvent) => any;
-    onratechange: (ev: Event) => any;
-    onreadystatechange: (ev: ProgressEvent) => any;
-    onreset: (ev: Event) => any;
-    onresize: (ev: UIEvent) => any;
-    onscroll: (ev: UIEvent) => any;
-    onseeked: (ev: Event) => any;
-    onseeking: (ev: Event) => any;
-    onselect: (ev: UIEvent) => any;
-    onstalled: (ev: Event) => any;
-    onstorage: (ev: StorageEvent) => any;
-    onsubmit: (ev: Event) => any;
-    onsuspend: (ev: Event) => any;
-    ontimeupdate: (ev: Event) => any;
-    ontouchcancel: any;
-    ontouchend: any;
-    ontouchmove: any;
-    ontouchstart: any;
-    onunload: (ev: Event) => any;
-    onvolumechange: (ev: Event) => any;
-    onwaiting: (ev: Event) => any;
-    opener: Window;
+    onfocus: (this: this, ev: FocusEvent) => any;
+    onhashchange: (this: this, ev: HashChangeEvent) => any;
+    oninput: (this: this, ev: Event) => any;
+    oninvalid: (this: this, ev: Event) => any;
+    onkeydown: (this: this, ev: KeyboardEvent) => any;
+    onkeypress: (this: this, ev: KeyboardEvent) => any;
+    onkeyup: (this: this, ev: KeyboardEvent) => any;
+    onload: (this: this, ev: Event) => any;
+    onloadeddata: (this: this, ev: Event) => any;
+    onloadedmetadata: (this: this, ev: Event) => any;
+    onloadstart: (this: this, ev: Event) => any;
+    onmessage: (this: this, ev: MessageEvent) => any;
+    onmousedown: (this: this, ev: MouseEvent) => any;
+    onmouseenter: (this: this, ev: MouseEvent) => any;
+    onmouseleave: (this: this, ev: MouseEvent) => any;
+    onmousemove: (this: this, ev: MouseEvent) => any;
+    onmouseout: (this: this, ev: MouseEvent) => any;
+    onmouseover: (this: this, ev: MouseEvent) => any;
+    onmouseup: (this: this, ev: MouseEvent) => any;
+    onmousewheel: (this: this, ev: WheelEvent) => any;
+    onmsgesturechange: (this: this, ev: MSGestureEvent) => any;
+    onmsgesturedoubletap: (this: this, ev: MSGestureEvent) => any;
+    onmsgestureend: (this: this, ev: MSGestureEvent) => any;
+    onmsgesturehold: (this: this, ev: MSGestureEvent) => any;
+    onmsgesturestart: (this: this, ev: MSGestureEvent) => any;
+    onmsgesturetap: (this: this, ev: MSGestureEvent) => any;
+    onmsinertiastart: (this: this, ev: MSGestureEvent) => any;
+    onmspointercancel: (this: this, ev: MSPointerEvent) => any;
+    onmspointerdown: (this: this, ev: MSPointerEvent) => any;
+    onmspointerenter: (this: this, ev: MSPointerEvent) => any;
+    onmspointerleave: (this: this, ev: MSPointerEvent) => any;
+    onmspointermove: (this: this, ev: MSPointerEvent) => any;
+    onmspointerout: (this: this, ev: MSPointerEvent) => any;
+    onmspointerover: (this: this, ev: MSPointerEvent) => any;
+    onmspointerup: (this: this, ev: MSPointerEvent) => any;
+    onoffline: (this: this, ev: Event) => any;
+    ononline: (this: this, ev: Event) => any;
+    onorientationchange: (this: this, ev: Event) => any;
+    onpagehide: (this: this, ev: PageTransitionEvent) => any;
+    onpageshow: (this: this, ev: PageTransitionEvent) => any;
+    onpause: (this: this, ev: Event) => any;
+    onplay: (this: this, ev: Event) => any;
+    onplaying: (this: this, ev: Event) => any;
+    onpopstate: (this: this, ev: PopStateEvent) => any;
+    onprogress: (this: this, ev: ProgressEvent) => any;
+    onratechange: (this: this, ev: Event) => any;
+    onreadystatechange: (this: this, ev: ProgressEvent) => any;
+    onreset: (this: this, ev: Event) => any;
+    onresize: (this: this, ev: UIEvent) => any;
+    onscroll: (this: this, ev: UIEvent) => any;
+    onseeked: (this: this, ev: Event) => any;
+    onseeking: (this: this, ev: Event) => any;
+    onselect: (this: this, ev: UIEvent) => any;
+    onstalled: (this: this, ev: Event) => any;
+    onstorage: (this: this, ev: StorageEvent) => any;
+    onsubmit: (this: this, ev: Event) => any;
+    onsuspend: (this: this, ev: Event) => any;
+    ontimeupdate: (this: this, ev: Event) => any;
+    ontouchcancel: (ev: TouchEvent) => any;
+    ontouchend: (ev: TouchEvent) => any;
+    ontouchmove: (ev: TouchEvent) => any;
+    ontouchstart: (ev: TouchEvent) => any;
+    onunload: (this: this, ev: Event) => any;
+    onvolumechange: (this: this, ev: Event) => any;
+    onwaiting: (this: this, ev: Event) => any;
+    opener: any;
     orientation: string | number;
-    outerHeight: number;
-    outerWidth: number;
-    pageXOffset: number;
-    pageYOffset: number;
-    parent: Window;
-    performance: Performance;
-    personalbar: BarProp;
-    screen: Screen;
-    screenLeft: number;
-    screenTop: number;
-    screenX: number;
-    screenY: number;
-    scrollX: number;
-    scrollY: number;
-    scrollbars: BarProp;
-    self: Window;
+    readonly outerHeight: number;
+    readonly outerWidth: number;
+    readonly pageXOffset: number;
+    readonly pageYOffset: number;
+    readonly parent: Window;
+    readonly performance: Performance;
+    readonly personalbar: BarProp;
+    readonly screen: Screen;
+    readonly screenLeft: number;
+    readonly screenTop: number;
+    readonly screenX: number;
+    readonly screenY: number;
+    readonly scrollX: number;
+    readonly scrollY: number;
+    readonly scrollbars: BarProp;
+    readonly self: Window;
     status: string;
-    statusbar: BarProp;
-    styleMedia: StyleMedia;
-    toolbar: BarProp;
-    top: Window;
-    window: Window;
-    URL: URL;
+    readonly statusbar: BarProp;
+    readonly styleMedia: StyleMedia;
+    readonly toolbar: BarProp;
+    readonly top: Window;
+    readonly window: Window;
+    URL: typeof URL;
+    Blob: typeof Blob;
     alert(message?: any): void;
     blur(): void;
     cancelAnimationFrame(handle: number): void;
@@ -17347,14 +18737,11 @@ interface Window extends EventTarget, WindowTimers, WindowSessionStorage, Window
     matchMedia(mediaQuery: string): MediaQueryList;
     moveBy(x?: number, y?: number): void;
     moveTo(x?: number, y?: number): void;
-    msCancelRequestAnimationFrame(handle: number): void;
-    msMatchMedia(mediaQuery: string): MediaQueryList;
-    msRequestAnimationFrame(callback: FrameRequestCallback): number;
     msWriteProfilerMark(profilerMarkName: string): void;
-    open(url?: string, target?: string, features?: string, replace?: boolean): any;
-    postMessage(message: any, targetOrigin: string, ports?: any): void;
+    open(url?: string, target?: string, features?: string, replace?: boolean): Window;
+    postMessage(message: any, targetOrigin: string, transfer?: any[]): void;
     print(): void;
-    prompt(message?: string, _default?: string): string;
+    prompt(message?: string, _default?: string): string | null;
     releaseEvents(): void;
     requestAnimationFrame(callback: FrameRequestCallback): number;
     resizeBy(x?: number, y?: number): void;
@@ -17362,101 +18749,108 @@ interface Window extends EventTarget, WindowTimers, WindowSessionStorage, Window
     scroll(x?: number, y?: number): void;
     scrollBy(x?: number, y?: number): void;
     scrollTo(x?: number, y?: number): void;
+    webkitCancelAnimationFrame(handle: number): void;
     webkitConvertPointFromNodeToPage(node: Node, pt: WebKitPoint): WebKitPoint;
     webkitConvertPointFromPageToNode(node: Node, pt: WebKitPoint): WebKitPoint;
-    addEventListener(type: "MSGestureChange", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureDoubleTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureEnd", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureHold", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSGestureTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSInertiaStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerCancel", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerDown", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerEnter", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerLeave", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerMove", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOut", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerOver", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "MSPointerUp", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "abort", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "afterprint", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforeprint", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "beforeunload", listener: (ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "blur", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplay", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "canplaythrough", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "change", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "click", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "compassneedscalibration", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "contextmenu", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dblclick", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "devicemotion", listener: (ev: DeviceMotionEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "deviceorientation", listener: (ev: DeviceOrientationEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drag", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragend", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragenter", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragleave", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragover", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "dragstart", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "drop", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "durationchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "emptied", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "ended", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "focus", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "hashchange", listener: (ev: HashChangeEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "input", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "keydown", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keypress", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "keyup", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadeddata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadedmetadata", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "message", listener: (ev: MessageEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousedown", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseenter", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseleave", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousemove", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseout", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseover", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mouseup", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "mousewheel", listener: (ev: MouseWheelEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "offline", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "online", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "orientationchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "pagehide", listener: (ev: PageTransitionEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pageshow", listener: (ev: PageTransitionEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pause", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "play", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "playing", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointercancel", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerdown", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerenter", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerleave", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointermove", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerout", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerover", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerup", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "popstate", listener: (ev: PopStateEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "progress", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "ratechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "readystatechange", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "reset", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "resize", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "scroll", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeked", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "seeking", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "select", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "stalled", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "storage", listener: (ev: StorageEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "submit", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "suspend", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "timeupdate", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "unload", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "volumechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "waiting", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "wheel", listener: (ev: WheelEvent) => any, useCapture?: boolean): void;
+    webkitRequestAnimationFrame(callback: FrameRequestCallback): number;
+    scroll(options?: ScrollToOptions): void;
+    scrollTo(options?: ScrollToOptions): void;
+    scrollBy(options?: ScrollToOptions): void;
+    addEventListener(type: "MSGestureChange", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureDoubleTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureEnd", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureHold", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSGestureTap", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSInertiaStart", listener: (this: this, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerCancel", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerDown", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerEnter", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerLeave", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerMove", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOut", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerOver", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "MSPointerUp", listener: (this: this, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "abort", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "afterprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforeprint", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "beforeunload", listener: (this: this, ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "blur", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplay", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "canplaythrough", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "change", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "click", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "compassneedscalibration", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "contextmenu", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dblclick", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "devicelight", listener: (this: this, ev: DeviceLightEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "devicemotion", listener: (this: this, ev: DeviceMotionEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "deviceorientation", listener: (this: this, ev: DeviceOrientationEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drag", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragend", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragenter", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragleave", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragover", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "dragstart", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "drop", listener: (this: this, ev: DragEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "durationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "emptied", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "ended", listener: (this: this, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "focus", listener: (this: this, ev: FocusEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "hashchange", listener: (this: this, ev: HashChangeEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "input", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "invalid", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "keydown", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keypress", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "keyup", listener: (this: this, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadeddata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadedmetadata", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousedown", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseenter", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseleave", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousemove", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseout", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseover", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mouseup", listener: (this: this, ev: MouseEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "mousewheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "offline", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "online", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "orientationchange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "pagehide", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pageshow", listener: (this: this, ev: PageTransitionEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pause", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "play", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "playing", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "popstate", listener: (this: this, ev: PopStateEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "ratechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "readystatechange", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "reset", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "resize", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "scroll", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeked", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "seeking", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "select", listener: (this: this, ev: UIEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "stalled", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "storage", listener: (this: this, ev: StorageEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "submit", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "suspend", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "timeupdate", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "unload", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "volumechange", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "waiting", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
     [index: number]: Window;
 }
@@ -17467,11 +18861,11 @@ declare var Window: {
 }
 
 interface Worker extends EventTarget, AbstractWorker {
-    onmessage: (ev: MessageEvent) => any;
+    onmessage: (this: this, ev: MessageEvent) => any;
     postMessage(message: any, ports?: any): void;
     terminate(): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "message", listener: (ev: MessageEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "message", listener: (this: this, ev: MessageEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -17489,22 +18883,21 @@ declare var XMLDocument: {
 }
 
 interface XMLHttpRequest extends EventTarget, XMLHttpRequestEventTarget {
-    msCaching: string;
-    onreadystatechange: (ev: ProgressEvent) => any;
-    readyState: number;
-    response: any;
-    responseBody: any;
-    responseText: string;
+    onreadystatechange: (this: this, ev: ProgressEvent) => any;
+    readonly readyState: number;
+    readonly response: any;
+    readonly responseText: string;
     responseType: string;
-    responseXML: any;
-    status: number;
-    statusText: string;
+    readonly responseXML: any;
+    readonly status: number;
+    readonly statusText: string;
     timeout: number;
-    upload: XMLHttpRequestUpload;
+    readonly upload: XMLHttpRequestUpload;
     withCredentials: boolean;
+    msCaching?: string;
     abort(): void;
     getAllResponseHeaders(): string;
-    getResponseHeader(header: string): string;
+    getResponseHeader(header: string): string | null;
     msCachingEnabled(): boolean;
     open(method: string, url: string, async?: boolean, user?: string, password?: string): void;
     overrideMimeType(mime: string): void;
@@ -17512,30 +18905,30 @@ interface XMLHttpRequest extends EventTarget, XMLHttpRequestEventTarget {
     send(data?: string): void;
     send(data?: any): void;
     setRequestHeader(header: string, value: string): void;
-    DONE: number;
-    HEADERS_RECEIVED: number;
-    LOADING: number;
-    OPENED: number;
-    UNSENT: number;
-    addEventListener(type: "abort", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadend", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "progress", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "readystatechange", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "timeout", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
+    readonly DONE: number;
+    readonly HEADERS_RECEIVED: number;
+    readonly LOADING: number;
+    readonly OPENED: number;
+    readonly UNSENT: number;
+    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadend", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "readystatechange", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "timeout", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
 declare var XMLHttpRequest: {
     prototype: XMLHttpRequest;
     new(): XMLHttpRequest;
-    DONE: number;
-    HEADERS_RECEIVED: number;
-    LOADING: number;
-    OPENED: number;
-    UNSENT: number;
+    readonly DONE: number;
+    readonly HEADERS_RECEIVED: number;
+    readonly LOADING: number;
+    readonly OPENED: number;
+    readonly UNSENT: number;
     create(): XMLHttpRequest;
 }
 
@@ -17587,40 +18980,40 @@ declare var XPathNSResolver: {
 }
 
 interface XPathResult {
-    booleanValue: boolean;
-    invalidIteratorState: boolean;
-    numberValue: number;
-    resultType: number;
-    singleNodeValue: Node;
-    snapshotLength: number;
-    stringValue: string;
+    readonly booleanValue: boolean;
+    readonly invalidIteratorState: boolean;
+    readonly numberValue: number;
+    readonly resultType: number;
+    readonly singleNodeValue: Node;
+    readonly snapshotLength: number;
+    readonly stringValue: string;
     iterateNext(): Node;
     snapshotItem(index: number): Node;
-    ANY_TYPE: number;
-    ANY_UNORDERED_NODE_TYPE: number;
-    BOOLEAN_TYPE: number;
-    FIRST_ORDERED_NODE_TYPE: number;
-    NUMBER_TYPE: number;
-    ORDERED_NODE_ITERATOR_TYPE: number;
-    ORDERED_NODE_SNAPSHOT_TYPE: number;
-    STRING_TYPE: number;
-    UNORDERED_NODE_ITERATOR_TYPE: number;
-    UNORDERED_NODE_SNAPSHOT_TYPE: number;
+    readonly ANY_TYPE: number;
+    readonly ANY_UNORDERED_NODE_TYPE: number;
+    readonly BOOLEAN_TYPE: number;
+    readonly FIRST_ORDERED_NODE_TYPE: number;
+    readonly NUMBER_TYPE: number;
+    readonly ORDERED_NODE_ITERATOR_TYPE: number;
+    readonly ORDERED_NODE_SNAPSHOT_TYPE: number;
+    readonly STRING_TYPE: number;
+    readonly UNORDERED_NODE_ITERATOR_TYPE: number;
+    readonly UNORDERED_NODE_SNAPSHOT_TYPE: number;
 }
 
 declare var XPathResult: {
     prototype: XPathResult;
     new(): XPathResult;
-    ANY_TYPE: number;
-    ANY_UNORDERED_NODE_TYPE: number;
-    BOOLEAN_TYPE: number;
-    FIRST_ORDERED_NODE_TYPE: number;
-    NUMBER_TYPE: number;
-    ORDERED_NODE_ITERATOR_TYPE: number;
-    ORDERED_NODE_SNAPSHOT_TYPE: number;
-    STRING_TYPE: number;
-    UNORDERED_NODE_ITERATOR_TYPE: number;
-    UNORDERED_NODE_SNAPSHOT_TYPE: number;
+    readonly ANY_TYPE: number;
+    readonly ANY_UNORDERED_NODE_TYPE: number;
+    readonly BOOLEAN_TYPE: number;
+    readonly FIRST_ORDERED_NODE_TYPE: number;
+    readonly NUMBER_TYPE: number;
+    readonly ORDERED_NODE_ITERATOR_TYPE: number;
+    readonly ORDERED_NODE_SNAPSHOT_TYPE: number;
+    readonly STRING_TYPE: number;
+    readonly UNORDERED_NODE_ITERATOR_TYPE: number;
+    readonly UNORDERED_NODE_SNAPSHOT_TYPE: number;
 }
 
 interface XSLTProcessor {
@@ -17640,11 +19033,23 @@ declare var XSLTProcessor: {
 }
 
 interface AbstractWorker {
-    onerror: (ev: Event) => any;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
+    onerror: (this: this, ev: ErrorEvent) => any;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
+interface CanvasPathMethods {
+    arc(x: number, y: number, radius: number, startAngle: number, endAngle: number, anticlockwise?: boolean): void;
+    arcTo(x1: number, y1: number, x2: number, y2: number, radius: number): void;
+    bezierCurveTo(cp1x: number, cp1y: number, cp2x: number, cp2y: number, x: number, y: number): void;
+    closePath(): void;
+    ellipse(x: number, y: number, radiusX: number, radiusY: number, rotation: number, startAngle: number, endAngle: number, anticlockwise?: boolean): void;
+    lineTo(x: number, y: number): void;
+    moveTo(x: number, y: number): void;
+    quadraticCurveTo(cpx: number, cpy: number, x: number, y: number): void;
+    rect(x: number, y: number, w: number, h: number): void;
+}
+
 interface ChildNode {
     remove(): void;
 }
@@ -17667,6 +19072,7 @@ interface DocumentEvent {
     createEvent(eventInterface:"CommandEvent"): CommandEvent;
     createEvent(eventInterface:"CompositionEvent"): CompositionEvent;
     createEvent(eventInterface:"CustomEvent"): CustomEvent;
+    createEvent(eventInterface:"DeviceLightEvent"): DeviceLightEvent;
     createEvent(eventInterface:"DeviceMotionEvent"): DeviceMotionEvent;
     createEvent(eventInterface:"DeviceOrientationEvent"): DeviceOrientationEvent;
     createEvent(eventInterface:"DragEvent"): DragEvent;
@@ -17678,6 +19084,7 @@ interface DocumentEvent {
     createEvent(eventInterface:"HashChangeEvent"): HashChangeEvent;
     createEvent(eventInterface:"IDBVersionChangeEvent"): IDBVersionChangeEvent;
     createEvent(eventInterface:"KeyboardEvent"): KeyboardEvent;
+    createEvent(eventInterface:"ListeningStateChangedEvent"): ListeningStateChangedEvent;
     createEvent(eventInterface:"LongRunningScriptDetectedEvent"): LongRunningScriptDetectedEvent;
     createEvent(eventInterface:"MSGestureEvent"): MSGestureEvent;
     createEvent(eventInterface:"MSManipulationEvent"): MSManipulationEvent;
@@ -17685,21 +19092,31 @@ interface DocumentEvent {
     createEvent(eventInterface:"MSMediaKeyNeededEvent"): MSMediaKeyNeededEvent;
     createEvent(eventInterface:"MSPointerEvent"): MSPointerEvent;
     createEvent(eventInterface:"MSSiteModeEvent"): MSSiteModeEvent;
+    createEvent(eventInterface:"MediaEncryptedEvent"): MediaEncryptedEvent;
+    createEvent(eventInterface:"MediaKeyMessageEvent"): MediaKeyMessageEvent;
+    createEvent(eventInterface:"MediaStreamErrorEvent"): MediaStreamErrorEvent;
+    createEvent(eventInterface:"MediaStreamTrackEvent"): MediaStreamTrackEvent;
     createEvent(eventInterface:"MessageEvent"): MessageEvent;
     createEvent(eventInterface:"MouseEvent"): MouseEvent;
     createEvent(eventInterface:"MouseEvents"): MouseEvent;
-    createEvent(eventInterface:"MouseWheelEvent"): MouseWheelEvent;
     createEvent(eventInterface:"MutationEvent"): MutationEvent;
     createEvent(eventInterface:"MutationEvents"): MutationEvent;
     createEvent(eventInterface:"NavigationCompletedEvent"): NavigationCompletedEvent;
     createEvent(eventInterface:"NavigationEvent"): NavigationEvent;
     createEvent(eventInterface:"NavigationEventWithReferrer"): NavigationEventWithReferrer;
     createEvent(eventInterface:"OfflineAudioCompletionEvent"): OfflineAudioCompletionEvent;
+    createEvent(eventInterface:"OverflowEvent"): OverflowEvent;
     createEvent(eventInterface:"PageTransitionEvent"): PageTransitionEvent;
     createEvent(eventInterface:"PermissionRequestedEvent"): PermissionRequestedEvent;
     createEvent(eventInterface:"PointerEvent"): PointerEvent;
     createEvent(eventInterface:"PopStateEvent"): PopStateEvent;
     createEvent(eventInterface:"ProgressEvent"): ProgressEvent;
+    createEvent(eventInterface:"RTCDTMFToneChangeEvent"): RTCDTMFToneChangeEvent;
+    createEvent(eventInterface:"RTCDtlsTransportStateChangedEvent"): RTCDtlsTransportStateChangedEvent;
+    createEvent(eventInterface:"RTCIceCandidatePairChangedEvent"): RTCIceCandidatePairChangedEvent;
+    createEvent(eventInterface:"RTCIceGathererEvent"): RTCIceGathererEvent;
+    createEvent(eventInterface:"RTCIceTransportStateChangedEvent"): RTCIceTransportStateChangedEvent;
+    createEvent(eventInterface:"RTCSsrcConflictEvent"): RTCSsrcConflictEvent;
     createEvent(eventInterface:"SVGZoomEvent"): SVGZoomEvent;
     createEvent(eventInterface:"SVGZoomEvents"): SVGZoomEvent;
     createEvent(eventInterface:"ScriptNotifyEvent"): ScriptNotifyEvent;
@@ -17717,11 +19134,11 @@ interface DocumentEvent {
 }
 
 interface ElementTraversal {
-    childElementCount: number;
-    firstElementChild: Element;
-    lastElementChild: Element;
-    nextElementSibling: Element;
-    previousElementSibling: Element;
+    readonly childElementCount: number;
+    readonly firstElementChild: Element;
+    readonly lastElementChild: Element;
+    readonly nextElementSibling: Element;
+    readonly previousElementSibling: Element;
 }
 
 interface GetSVGDocument {
@@ -17729,24 +19146,24 @@ interface GetSVGDocument {
 }
 
 interface GlobalEventHandlers {
-    onpointercancel: (ev: PointerEvent) => any;
-    onpointerdown: (ev: PointerEvent) => any;
-    onpointerenter: (ev: PointerEvent) => any;
-    onpointerleave: (ev: PointerEvent) => any;
-    onpointermove: (ev: PointerEvent) => any;
-    onpointerout: (ev: PointerEvent) => any;
-    onpointerover: (ev: PointerEvent) => any;
-    onpointerup: (ev: PointerEvent) => any;
-    onwheel: (ev: WheelEvent) => any;
-    addEventListener(type: "pointercancel", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerdown", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerenter", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerleave", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointermove", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerout", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerover", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "pointerup", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "wheel", listener: (ev: WheelEvent) => any, useCapture?: boolean): void;
+    onpointercancel: (this: this, ev: PointerEvent) => any;
+    onpointerdown: (this: this, ev: PointerEvent) => any;
+    onpointerenter: (this: this, ev: PointerEvent) => any;
+    onpointerleave: (this: this, ev: PointerEvent) => any;
+    onpointermove: (this: this, ev: PointerEvent) => any;
+    onpointerout: (this: this, ev: PointerEvent) => any;
+    onpointerover: (this: this, ev: PointerEvent) => any;
+    onpointerup: (this: this, ev: PointerEvent) => any;
+    onwheel: (this: this, ev: WheelEvent) => any;
+    addEventListener(type: "pointercancel", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerdown", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerenter", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerleave", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointermove", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerout", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerover", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "pointerup", listener: (this: this, ev: PointerEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "wheel", listener: (this: this, ev: WheelEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -17766,33 +19183,32 @@ interface HTMLTableAlignment {
 }
 
 interface IDBEnvironment {
-    indexedDB: IDBFactory;
-    msIndexedDB: IDBFactory;
+    readonly indexedDB: IDBFactory;
 }
 
 interface LinkStyle {
-    sheet: StyleSheet;
+    readonly sheet: StyleSheet;
 }
 
 interface MSBaseReader {
-    onabort: (ev: Event) => any;
-    onerror: (ev: Event) => any;
-    onload: (ev: Event) => any;
-    onloadend: (ev: ProgressEvent) => any;
-    onloadstart: (ev: Event) => any;
-    onprogress: (ev: ProgressEvent) => any;
-    readyState: number;
-    result: any;
+    onabort: (this: this, ev: Event) => any;
+    onerror: (this: this, ev: ErrorEvent) => any;
+    onload: (this: this, ev: Event) => any;
+    onloadend: (this: this, ev: ProgressEvent) => any;
+    onloadstart: (this: this, ev: Event) => any;
+    onprogress: (this: this, ev: ProgressEvent) => any;
+    readonly readyState: number;
+    readonly result: any;
     abort(): void;
-    DONE: number;
-    EMPTY: number;
-    LOADING: number;
-    addEventListener(type: "abort", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadend", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "progress", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
+    readonly DONE: number;
+    readonly EMPTY: number;
+    readonly LOADING: number;
+    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadend", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
@@ -17814,29 +19230,386 @@ interface NavigatorContentUtils {
 }
 
 interface NavigatorGeolocation {
-    geolocation: Geolocation;
+    readonly geolocation: Geolocation;
 }
 
 interface NavigatorID {
-    appName: string;
-    appVersion: string;
-    platform: string;
-    product: string;
-    productSub: string;
-    userAgent: string;
-    vendor: string;
-    vendorSub: string;
+    readonly appName: string;
+    readonly appVersion: string;
+    readonly platform: string;
+    readonly product: string;
+    readonly productSub: string;
+    readonly userAgent: string;
+    readonly vendor: string;
+    readonly vendorSub: string;
 }
 
 interface NavigatorOnLine {
-    onLine: boolean;
+    readonly onLine: boolean;
 }
 
 interface NavigatorStorageUtils {
 }
 
+interface NavigatorUserMedia {
+    readonly mediaDevices: MediaDevices;
+    getUserMedia(constraints: MediaStreamConstraints, successCallback: NavigatorUserMediaSuccessCallback, errorCallback: NavigatorUserMediaErrorCallback): void;
+}
+
 interface NodeSelector {
+    querySelector(selectors: "a"): HTMLAnchorElement;
+    querySelector(selectors: "abbr"): HTMLElement;
+    querySelector(selectors: "acronym"): HTMLElement;
+    querySelector(selectors: "address"): HTMLElement;
+    querySelector(selectors: "applet"): HTMLAppletElement;
+    querySelector(selectors: "area"): HTMLAreaElement;
+    querySelector(selectors: "article"): HTMLElement;
+    querySelector(selectors: "aside"): HTMLElement;
+    querySelector(selectors: "audio"): HTMLAudioElement;
+    querySelector(selectors: "b"): HTMLElement;
+    querySelector(selectors: "base"): HTMLBaseElement;
+    querySelector(selectors: "basefont"): HTMLBaseFontElement;
+    querySelector(selectors: "bdo"): HTMLElement;
+    querySelector(selectors: "big"): HTMLElement;
+    querySelector(selectors: "blockquote"): HTMLQuoteElement;
+    querySelector(selectors: "body"): HTMLBodyElement;
+    querySelector(selectors: "br"): HTMLBRElement;
+    querySelector(selectors: "button"): HTMLButtonElement;
+    querySelector(selectors: "canvas"): HTMLCanvasElement;
+    querySelector(selectors: "caption"): HTMLTableCaptionElement;
+    querySelector(selectors: "center"): HTMLElement;
+    querySelector(selectors: "circle"): SVGCircleElement;
+    querySelector(selectors: "cite"): HTMLElement;
+    querySelector(selectors: "clippath"): SVGClipPathElement;
+    querySelector(selectors: "code"): HTMLElement;
+    querySelector(selectors: "col"): HTMLTableColElement;
+    querySelector(selectors: "colgroup"): HTMLTableColElement;
+    querySelector(selectors: "datalist"): HTMLDataListElement;
+    querySelector(selectors: "dd"): HTMLElement;
+    querySelector(selectors: "defs"): SVGDefsElement;
+    querySelector(selectors: "del"): HTMLModElement;
+    querySelector(selectors: "desc"): SVGDescElement;
+    querySelector(selectors: "dfn"): HTMLElement;
+    querySelector(selectors: "dir"): HTMLDirectoryElement;
+    querySelector(selectors: "div"): HTMLDivElement;
+    querySelector(selectors: "dl"): HTMLDListElement;
+    querySelector(selectors: "dt"): HTMLElement;
+    querySelector(selectors: "ellipse"): SVGEllipseElement;
+    querySelector(selectors: "em"): HTMLElement;
+    querySelector(selectors: "embed"): HTMLEmbedElement;
+    querySelector(selectors: "feblend"): SVGFEBlendElement;
+    querySelector(selectors: "fecolormatrix"): SVGFEColorMatrixElement;
+    querySelector(selectors: "fecomponenttransfer"): SVGFEComponentTransferElement;
+    querySelector(selectors: "fecomposite"): SVGFECompositeElement;
+    querySelector(selectors: "feconvolvematrix"): SVGFEConvolveMatrixElement;
+    querySelector(selectors: "fediffuselighting"): SVGFEDiffuseLightingElement;
+    querySelector(selectors: "fedisplacementmap"): SVGFEDisplacementMapElement;
+    querySelector(selectors: "fedistantlight"): SVGFEDistantLightElement;
+    querySelector(selectors: "feflood"): SVGFEFloodElement;
+    querySelector(selectors: "fefunca"): SVGFEFuncAElement;
+    querySelector(selectors: "fefuncb"): SVGFEFuncBElement;
+    querySelector(selectors: "fefuncg"): SVGFEFuncGElement;
+    querySelector(selectors: "fefuncr"): SVGFEFuncRElement;
+    querySelector(selectors: "fegaussianblur"): SVGFEGaussianBlurElement;
+    querySelector(selectors: "feimage"): SVGFEImageElement;
+    querySelector(selectors: "femerge"): SVGFEMergeElement;
+    querySelector(selectors: "femergenode"): SVGFEMergeNodeElement;
+    querySelector(selectors: "femorphology"): SVGFEMorphologyElement;
+    querySelector(selectors: "feoffset"): SVGFEOffsetElement;
+    querySelector(selectors: "fepointlight"): SVGFEPointLightElement;
+    querySelector(selectors: "fespecularlighting"): SVGFESpecularLightingElement;
+    querySelector(selectors: "fespotlight"): SVGFESpotLightElement;
+    querySelector(selectors: "fetile"): SVGFETileElement;
+    querySelector(selectors: "feturbulence"): SVGFETurbulenceElement;
+    querySelector(selectors: "fieldset"): HTMLFieldSetElement;
+    querySelector(selectors: "figcaption"): HTMLElement;
+    querySelector(selectors: "figure"): HTMLElement;
+    querySelector(selectors: "filter"): SVGFilterElement;
+    querySelector(selectors: "font"): HTMLFontElement;
+    querySelector(selectors: "footer"): HTMLElement;
+    querySelector(selectors: "foreignobject"): SVGForeignObjectElement;
+    querySelector(selectors: "form"): HTMLFormElement;
+    querySelector(selectors: "frame"): HTMLFrameElement;
+    querySelector(selectors: "frameset"): HTMLFrameSetElement;
+    querySelector(selectors: "g"): SVGGElement;
+    querySelector(selectors: "h1"): HTMLHeadingElement;
+    querySelector(selectors: "h2"): HTMLHeadingElement;
+    querySelector(selectors: "h3"): HTMLHeadingElement;
+    querySelector(selectors: "h4"): HTMLHeadingElement;
+    querySelector(selectors: "h5"): HTMLHeadingElement;
+    querySelector(selectors: "h6"): HTMLHeadingElement;
+    querySelector(selectors: "head"): HTMLHeadElement;
+    querySelector(selectors: "header"): HTMLElement;
+    querySelector(selectors: "hgroup"): HTMLElement;
+    querySelector(selectors: "hr"): HTMLHRElement;
+    querySelector(selectors: "html"): HTMLHtmlElement;
+    querySelector(selectors: "i"): HTMLElement;
+    querySelector(selectors: "iframe"): HTMLIFrameElement;
+    querySelector(selectors: "image"): SVGImageElement;
+    querySelector(selectors: "img"): HTMLImageElement;
+    querySelector(selectors: "input"): HTMLInputElement;
+    querySelector(selectors: "ins"): HTMLModElement;
+    querySelector(selectors: "isindex"): HTMLUnknownElement;
+    querySelector(selectors: "kbd"): HTMLElement;
+    querySelector(selectors: "keygen"): HTMLElement;
+    querySelector(selectors: "label"): HTMLLabelElement;
+    querySelector(selectors: "legend"): HTMLLegendElement;
+    querySelector(selectors: "li"): HTMLLIElement;
+    querySelector(selectors: "line"): SVGLineElement;
+    querySelector(selectors: "lineargradient"): SVGLinearGradientElement;
+    querySelector(selectors: "link"): HTMLLinkElement;
+    querySelector(selectors: "listing"): HTMLPreElement;
+    querySelector(selectors: "map"): HTMLMapElement;
+    querySelector(selectors: "mark"): HTMLElement;
+    querySelector(selectors: "marker"): SVGMarkerElement;
+    querySelector(selectors: "marquee"): HTMLMarqueeElement;
+    querySelector(selectors: "mask"): SVGMaskElement;
+    querySelector(selectors: "menu"): HTMLMenuElement;
+    querySelector(selectors: "meta"): HTMLMetaElement;
+    querySelector(selectors: "metadata"): SVGMetadataElement;
+    querySelector(selectors: "meter"): HTMLMeterElement;
+    querySelector(selectors: "nav"): HTMLElement;
+    querySelector(selectors: "nextid"): HTMLUnknownElement;
+    querySelector(selectors: "nobr"): HTMLElement;
+    querySelector(selectors: "noframes"): HTMLElement;
+    querySelector(selectors: "noscript"): HTMLElement;
+    querySelector(selectors: "object"): HTMLObjectElement;
+    querySelector(selectors: "ol"): HTMLOListElement;
+    querySelector(selectors: "optgroup"): HTMLOptGroupElement;
+    querySelector(selectors: "option"): HTMLOptionElement;
+    querySelector(selectors: "p"): HTMLParagraphElement;
+    querySelector(selectors: "param"): HTMLParamElement;
+    querySelector(selectors: "path"): SVGPathElement;
+    querySelector(selectors: "pattern"): SVGPatternElement;
+    querySelector(selectors: "picture"): HTMLPictureElement;
+    querySelector(selectors: "plaintext"): HTMLElement;
+    querySelector(selectors: "polygon"): SVGPolygonElement;
+    querySelector(selectors: "polyline"): SVGPolylineElement;
+    querySelector(selectors: "pre"): HTMLPreElement;
+    querySelector(selectors: "progress"): HTMLProgressElement;
+    querySelector(selectors: "q"): HTMLQuoteElement;
+    querySelector(selectors: "radialgradient"): SVGRadialGradientElement;
+    querySelector(selectors: "rect"): SVGRectElement;
+    querySelector(selectors: "rt"): HTMLElement;
+    querySelector(selectors: "ruby"): HTMLElement;
+    querySelector(selectors: "s"): HTMLElement;
+    querySelector(selectors: "samp"): HTMLElement;
+    querySelector(selectors: "script"): HTMLScriptElement;
+    querySelector(selectors: "section"): HTMLElement;
+    querySelector(selectors: "select"): HTMLSelectElement;
+    querySelector(selectors: "small"): HTMLElement;
+    querySelector(selectors: "source"): HTMLSourceElement;
+    querySelector(selectors: "span"): HTMLSpanElement;
+    querySelector(selectors: "stop"): SVGStopElement;
+    querySelector(selectors: "strike"): HTMLElement;
+    querySelector(selectors: "strong"): HTMLElement;
+    querySelector(selectors: "style"): HTMLStyleElement;
+    querySelector(selectors: "sub"): HTMLElement;
+    querySelector(selectors: "sup"): HTMLElement;
+    querySelector(selectors: "svg"): SVGSVGElement;
+    querySelector(selectors: "switch"): SVGSwitchElement;
+    querySelector(selectors: "symbol"): SVGSymbolElement;
+    querySelector(selectors: "table"): HTMLTableElement;
+    querySelector(selectors: "tbody"): HTMLTableSectionElement;
+    querySelector(selectors: "td"): HTMLTableDataCellElement;
+    querySelector(selectors: "template"): HTMLTemplateElement;
+    querySelector(selectors: "text"): SVGTextElement;
+    querySelector(selectors: "textpath"): SVGTextPathElement;
+    querySelector(selectors: "textarea"): HTMLTextAreaElement;
+    querySelector(selectors: "tfoot"): HTMLTableSectionElement;
+    querySelector(selectors: "th"): HTMLTableHeaderCellElement;
+    querySelector(selectors: "thead"): HTMLTableSectionElement;
+    querySelector(selectors: "title"): HTMLTitleElement;
+    querySelector(selectors: "tr"): HTMLTableRowElement;
+    querySelector(selectors: "track"): HTMLTrackElement;
+    querySelector(selectors: "tspan"): SVGTSpanElement;
+    querySelector(selectors: "tt"): HTMLElement;
+    querySelector(selectors: "u"): HTMLElement;
+    querySelector(selectors: "ul"): HTMLUListElement;
+    querySelector(selectors: "use"): SVGUseElement;
+    querySelector(selectors: "var"): HTMLElement;
+    querySelector(selectors: "video"): HTMLVideoElement;
+    querySelector(selectors: "view"): SVGViewElement;
+    querySelector(selectors: "wbr"): HTMLElement;
+    querySelector(selectors: "x-ms-webview"): MSHTMLWebViewElement;
+    querySelector(selectors: "xmp"): HTMLPreElement;
     querySelector(selectors: string): Element;
+    querySelectorAll(selectors: "a"): NodeListOf<HTMLAnchorElement>;
+    querySelectorAll(selectors: "abbr"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "acronym"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "address"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "applet"): NodeListOf<HTMLAppletElement>;
+    querySelectorAll(selectors: "area"): NodeListOf<HTMLAreaElement>;
+    querySelectorAll(selectors: "article"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "aside"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "audio"): NodeListOf<HTMLAudioElement>;
+    querySelectorAll(selectors: "b"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "base"): NodeListOf<HTMLBaseElement>;
+    querySelectorAll(selectors: "basefont"): NodeListOf<HTMLBaseFontElement>;
+    querySelectorAll(selectors: "bdo"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "big"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "blockquote"): NodeListOf<HTMLQuoteElement>;
+    querySelectorAll(selectors: "body"): NodeListOf<HTMLBodyElement>;
+    querySelectorAll(selectors: "br"): NodeListOf<HTMLBRElement>;
+    querySelectorAll(selectors: "button"): NodeListOf<HTMLButtonElement>;
+    querySelectorAll(selectors: "canvas"): NodeListOf<HTMLCanvasElement>;
+    querySelectorAll(selectors: "caption"): NodeListOf<HTMLTableCaptionElement>;
+    querySelectorAll(selectors: "center"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "circle"): NodeListOf<SVGCircleElement>;
+    querySelectorAll(selectors: "cite"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "clippath"): NodeListOf<SVGClipPathElement>;
+    querySelectorAll(selectors: "code"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "col"): NodeListOf<HTMLTableColElement>;
+    querySelectorAll(selectors: "colgroup"): NodeListOf<HTMLTableColElement>;
+    querySelectorAll(selectors: "datalist"): NodeListOf<HTMLDataListElement>;
+    querySelectorAll(selectors: "dd"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "defs"): NodeListOf<SVGDefsElement>;
+    querySelectorAll(selectors: "del"): NodeListOf<HTMLModElement>;
+    querySelectorAll(selectors: "desc"): NodeListOf<SVGDescElement>;
+    querySelectorAll(selectors: "dfn"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "dir"): NodeListOf<HTMLDirectoryElement>;
+    querySelectorAll(selectors: "div"): NodeListOf<HTMLDivElement>;
+    querySelectorAll(selectors: "dl"): NodeListOf<HTMLDListElement>;
+    querySelectorAll(selectors: "dt"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "ellipse"): NodeListOf<SVGEllipseElement>;
+    querySelectorAll(selectors: "em"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "embed"): NodeListOf<HTMLEmbedElement>;
+    querySelectorAll(selectors: "feblend"): NodeListOf<SVGFEBlendElement>;
+    querySelectorAll(selectors: "fecolormatrix"): NodeListOf<SVGFEColorMatrixElement>;
+    querySelectorAll(selectors: "fecomponenttransfer"): NodeListOf<SVGFEComponentTransferElement>;
+    querySelectorAll(selectors: "fecomposite"): NodeListOf<SVGFECompositeElement>;
+    querySelectorAll(selectors: "feconvolvematrix"): NodeListOf<SVGFEConvolveMatrixElement>;
+    querySelectorAll(selectors: "fediffuselighting"): NodeListOf<SVGFEDiffuseLightingElement>;
+    querySelectorAll(selectors: "fedisplacementmap"): NodeListOf<SVGFEDisplacementMapElement>;
+    querySelectorAll(selectors: "fedistantlight"): NodeListOf<SVGFEDistantLightElement>;
+    querySelectorAll(selectors: "feflood"): NodeListOf<SVGFEFloodElement>;
+    querySelectorAll(selectors: "fefunca"): NodeListOf<SVGFEFuncAElement>;
+    querySelectorAll(selectors: "fefuncb"): NodeListOf<SVGFEFuncBElement>;
+    querySelectorAll(selectors: "fefuncg"): NodeListOf<SVGFEFuncGElement>;
+    querySelectorAll(selectors: "fefuncr"): NodeListOf<SVGFEFuncRElement>;
+    querySelectorAll(selectors: "fegaussianblur"): NodeListOf<SVGFEGaussianBlurElement>;
+    querySelectorAll(selectors: "feimage"): NodeListOf<SVGFEImageElement>;
+    querySelectorAll(selectors: "femerge"): NodeListOf<SVGFEMergeElement>;
+    querySelectorAll(selectors: "femergenode"): NodeListOf<SVGFEMergeNodeElement>;
+    querySelectorAll(selectors: "femorphology"): NodeListOf<SVGFEMorphologyElement>;
+    querySelectorAll(selectors: "feoffset"): NodeListOf<SVGFEOffsetElement>;
+    querySelectorAll(selectors: "fepointlight"): NodeListOf<SVGFEPointLightElement>;
+    querySelectorAll(selectors: "fespecularlighting"): NodeListOf<SVGFESpecularLightingElement>;
+    querySelectorAll(selectors: "fespotlight"): NodeListOf<SVGFESpotLightElement>;
+    querySelectorAll(selectors: "fetile"): NodeListOf<SVGFETileElement>;
+    querySelectorAll(selectors: "feturbulence"): NodeListOf<SVGFETurbulenceElement>;
+    querySelectorAll(selectors: "fieldset"): NodeListOf<HTMLFieldSetElement>;
+    querySelectorAll(selectors: "figcaption"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "figure"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "filter"): NodeListOf<SVGFilterElement>;
+    querySelectorAll(selectors: "font"): NodeListOf<HTMLFontElement>;
+    querySelectorAll(selectors: "footer"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "foreignobject"): NodeListOf<SVGForeignObjectElement>;
+    querySelectorAll(selectors: "form"): NodeListOf<HTMLFormElement>;
+    querySelectorAll(selectors: "frame"): NodeListOf<HTMLFrameElement>;
+    querySelectorAll(selectors: "frameset"): NodeListOf<HTMLFrameSetElement>;
+    querySelectorAll(selectors: "g"): NodeListOf<SVGGElement>;
+    querySelectorAll(selectors: "h1"): NodeListOf<HTMLHeadingElement>;
+    querySelectorAll(selectors: "h2"): NodeListOf<HTMLHeadingElement>;
+    querySelectorAll(selectors: "h3"): NodeListOf<HTMLHeadingElement>;
+    querySelectorAll(selectors: "h4"): NodeListOf<HTMLHeadingElement>;
+    querySelectorAll(selectors: "h5"): NodeListOf<HTMLHeadingElement>;
+    querySelectorAll(selectors: "h6"): NodeListOf<HTMLHeadingElement>;
+    querySelectorAll(selectors: "head"): NodeListOf<HTMLHeadElement>;
+    querySelectorAll(selectors: "header"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "hgroup"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "hr"): NodeListOf<HTMLHRElement>;
+    querySelectorAll(selectors: "html"): NodeListOf<HTMLHtmlElement>;
+    querySelectorAll(selectors: "i"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "iframe"): NodeListOf<HTMLIFrameElement>;
+    querySelectorAll(selectors: "image"): NodeListOf<SVGImageElement>;
+    querySelectorAll(selectors: "img"): NodeListOf<HTMLImageElement>;
+    querySelectorAll(selectors: "input"): NodeListOf<HTMLInputElement>;
+    querySelectorAll(selectors: "ins"): NodeListOf<HTMLModElement>;
+    querySelectorAll(selectors: "isindex"): NodeListOf<HTMLUnknownElement>;
+    querySelectorAll(selectors: "kbd"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "keygen"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "label"): NodeListOf<HTMLLabelElement>;
+    querySelectorAll(selectors: "legend"): NodeListOf<HTMLLegendElement>;
+    querySelectorAll(selectors: "li"): NodeListOf<HTMLLIElement>;
+    querySelectorAll(selectors: "line"): NodeListOf<SVGLineElement>;
+    querySelectorAll(selectors: "lineargradient"): NodeListOf<SVGLinearGradientElement>;
+    querySelectorAll(selectors: "link"): NodeListOf<HTMLLinkElement>;
+    querySelectorAll(selectors: "listing"): NodeListOf<HTMLPreElement>;
+    querySelectorAll(selectors: "map"): NodeListOf<HTMLMapElement>;
+    querySelectorAll(selectors: "mark"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "marker"): NodeListOf<SVGMarkerElement>;
+    querySelectorAll(selectors: "marquee"): NodeListOf<HTMLMarqueeElement>;
+    querySelectorAll(selectors: "mask"): NodeListOf<SVGMaskElement>;
+    querySelectorAll(selectors: "menu"): NodeListOf<HTMLMenuElement>;
+    querySelectorAll(selectors: "meta"): NodeListOf<HTMLMetaElement>;
+    querySelectorAll(selectors: "metadata"): NodeListOf<SVGMetadataElement>;
+    querySelectorAll(selectors: "meter"): NodeListOf<HTMLMeterElement>;
+    querySelectorAll(selectors: "nav"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "nextid"): NodeListOf<HTMLUnknownElement>;
+    querySelectorAll(selectors: "nobr"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "noframes"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "noscript"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "object"): NodeListOf<HTMLObjectElement>;
+    querySelectorAll(selectors: "ol"): NodeListOf<HTMLOListElement>;
+    querySelectorAll(selectors: "optgroup"): NodeListOf<HTMLOptGroupElement>;
+    querySelectorAll(selectors: "option"): NodeListOf<HTMLOptionElement>;
+    querySelectorAll(selectors: "p"): NodeListOf<HTMLParagraphElement>;
+    querySelectorAll(selectors: "param"): NodeListOf<HTMLParamElement>;
+    querySelectorAll(selectors: "path"): NodeListOf<SVGPathElement>;
+    querySelectorAll(selectors: "pattern"): NodeListOf<SVGPatternElement>;
+    querySelectorAll(selectors: "picture"): NodeListOf<HTMLPictureElement>;
+    querySelectorAll(selectors: "plaintext"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "polygon"): NodeListOf<SVGPolygonElement>;
+    querySelectorAll(selectors: "polyline"): NodeListOf<SVGPolylineElement>;
+    querySelectorAll(selectors: "pre"): NodeListOf<HTMLPreElement>;
+    querySelectorAll(selectors: "progress"): NodeListOf<HTMLProgressElement>;
+    querySelectorAll(selectors: "q"): NodeListOf<HTMLQuoteElement>;
+    querySelectorAll(selectors: "radialgradient"): NodeListOf<SVGRadialGradientElement>;
+    querySelectorAll(selectors: "rect"): NodeListOf<SVGRectElement>;
+    querySelectorAll(selectors: "rt"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "ruby"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "s"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "samp"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "script"): NodeListOf<HTMLScriptElement>;
+    querySelectorAll(selectors: "section"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "select"): NodeListOf<HTMLSelectElement>;
+    querySelectorAll(selectors: "small"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "source"): NodeListOf<HTMLSourceElement>;
+    querySelectorAll(selectors: "span"): NodeListOf<HTMLSpanElement>;
+    querySelectorAll(selectors: "stop"): NodeListOf<SVGStopElement>;
+    querySelectorAll(selectors: "strike"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "strong"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "style"): NodeListOf<HTMLStyleElement>;
+    querySelectorAll(selectors: "sub"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "sup"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "svg"): NodeListOf<SVGSVGElement>;
+    querySelectorAll(selectors: "switch"): NodeListOf<SVGSwitchElement>;
+    querySelectorAll(selectors: "symbol"): NodeListOf<SVGSymbolElement>;
+    querySelectorAll(selectors: "table"): NodeListOf<HTMLTableElement>;
+    querySelectorAll(selectors: "tbody"): NodeListOf<HTMLTableSectionElement>;
+    querySelectorAll(selectors: "td"): NodeListOf<HTMLTableDataCellElement>;
+    querySelectorAll(selectors: "template"): NodeListOf<HTMLTemplateElement>;
+    querySelectorAll(selectors: "text"): NodeListOf<SVGTextElement>;
+    querySelectorAll(selectors: "textpath"): NodeListOf<SVGTextPathElement>;
+    querySelectorAll(selectors: "textarea"): NodeListOf<HTMLTextAreaElement>;
+    querySelectorAll(selectors: "tfoot"): NodeListOf<HTMLTableSectionElement>;
+    querySelectorAll(selectors: "th"): NodeListOf<HTMLTableHeaderCellElement>;
+    querySelectorAll(selectors: "thead"): NodeListOf<HTMLTableSectionElement>;
+    querySelectorAll(selectors: "title"): NodeListOf<HTMLTitleElement>;
+    querySelectorAll(selectors: "tr"): NodeListOf<HTMLTableRowElement>;
+    querySelectorAll(selectors: "track"): NodeListOf<HTMLTrackElement>;
+    querySelectorAll(selectors: "tspan"): NodeListOf<SVGTSpanElement>;
+    querySelectorAll(selectors: "tt"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "u"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "ul"): NodeListOf<HTMLUListElement>;
+    querySelectorAll(selectors: "use"): NodeListOf<SVGUseElement>;
+    querySelectorAll(selectors: "var"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "video"): NodeListOf<HTMLVideoElement>;
+    querySelectorAll(selectors: "view"): NodeListOf<SVGViewElement>;
+    querySelectorAll(selectors: "wbr"): NodeListOf<HTMLElement>;
+    querySelectorAll(selectors: "x-ms-webview"): NodeListOf<MSHTMLWebViewElement>;
+    querySelectorAll(selectors: "xmp"): NodeListOf<HTMLPreElement>;
     querySelectorAll(selectors: string): NodeListOf<Element>;
 }
 
@@ -17845,29 +19618,29 @@ interface RandomSource {
 }
 
 interface SVGAnimatedPathData {
-    pathSegList: SVGPathSegList;
+    readonly pathSegList: SVGPathSegList;
 }
 
 interface SVGAnimatedPoints {
-    animatedPoints: SVGPointList;
-    points: SVGPointList;
+    readonly animatedPoints: SVGPointList;
+    readonly points: SVGPointList;
 }
 
 interface SVGExternalResourcesRequired {
-    externalResourcesRequired: SVGAnimatedBoolean;
+    readonly externalResourcesRequired: SVGAnimatedBoolean;
 }
 
 interface SVGFilterPrimitiveStandardAttributes extends SVGStylable {
-    height: SVGAnimatedLength;
-    result: SVGAnimatedString;
-    width: SVGAnimatedLength;
-    x: SVGAnimatedLength;
-    y: SVGAnimatedLength;
+    readonly height: SVGAnimatedLength;
+    readonly result: SVGAnimatedString;
+    readonly width: SVGAnimatedLength;
+    readonly x: SVGAnimatedLength;
+    readonly y: SVGAnimatedLength;
 }
 
 interface SVGFitToViewBox {
-    preserveAspectRatio: SVGAnimatedPreserveAspectRatio;
-    viewBox: SVGAnimatedRect;
+    readonly preserveAspectRatio: SVGAnimatedPreserveAspectRatio;
+    readonly viewBox: SVGAnimatedRect;
 }
 
 interface SVGLangSpace {
@@ -17876,8 +19649,8 @@ interface SVGLangSpace {
 }
 
 interface SVGLocatable {
-    farthestViewportElement: SVGElement;
-    nearestViewportElement: SVGElement;
+    readonly farthestViewportElement: SVGElement;
+    readonly nearestViewportElement: SVGElement;
     getBBox(): SVGRect;
     getCTM(): SVGMatrix;
     getScreenCTM(): SVGMatrix;
@@ -17886,22 +19659,22 @@ interface SVGLocatable {
 
 interface SVGStylable {
     className: any;
-    style: CSSStyleDeclaration;
+    readonly style: CSSStyleDeclaration;
 }
 
 interface SVGTests {
-    requiredExtensions: SVGStringList;
-    requiredFeatures: SVGStringList;
-    systemLanguage: SVGStringList;
+    readonly requiredExtensions: SVGStringList;
+    readonly requiredFeatures: SVGStringList;
+    readonly systemLanguage: SVGStringList;
     hasExtension(extension: string): boolean;
 }
 
 interface SVGTransformable extends SVGLocatable {
-    transform: SVGAnimatedTransformList;
+    readonly transform: SVGAnimatedTransformList;
 }
 
 interface SVGURIReference {
-    href: SVGAnimatedString;
+    readonly href: SVGAnimatedString;
 }
 
 interface WindowBase64 {
@@ -17910,57 +19683,63 @@ interface WindowBase64 {
 }
 
 interface WindowConsole {
-    console: Console;
+    readonly console: Console;
 }
 
 interface WindowLocalStorage {
-    localStorage: Storage;
+    readonly localStorage: Storage;
 }
 
 interface WindowSessionStorage {
-    sessionStorage: Storage;
+    readonly sessionStorage: Storage;
 }
 
 interface WindowTimers extends Object, WindowTimersExtension {
     clearInterval(handle: number): void;
     clearTimeout(handle: number): void;
+    setInterval(handler: (...args: any[]) => void, timeout: number): number;
     setInterval(handler: any, timeout?: any, ...args: any[]): number;
+    setTimeout(handler: (...args: any[]) => void, timeout: number): number;
     setTimeout(handler: any, timeout?: any, ...args: any[]): number;
 }
 
 interface WindowTimersExtension {
     clearImmediate(handle: number): void;
-    msClearImmediate(handle: number): void;
-    msSetImmediate(expression: any, ...args: any[]): number;
-    setImmediate(expression: any, ...args: any[]): number;
+    setImmediate(handler: (...args: any[]) => void): number;
+    setImmediate(handler: any, ...args: any[]): number;
 }
 
 interface XMLHttpRequestEventTarget {
-    onabort: (ev: Event) => any;
-    onerror: (ev: Event) => any;
-    onload: (ev: Event) => any;
-    onloadend: (ev: ProgressEvent) => any;
-    onloadstart: (ev: Event) => any;
-    onprogress: (ev: ProgressEvent) => any;
-    ontimeout: (ev: ProgressEvent) => any;
-    addEventListener(type: "abort", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "error", listener: (ev: ErrorEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadend", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "loadstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-    addEventListener(type: "progress", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-    addEventListener(type: "timeout", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
+    onabort: (this: this, ev: Event) => any;
+    onerror: (this: this, ev: ErrorEvent) => any;
+    onload: (this: this, ev: Event) => any;
+    onloadend: (this: this, ev: ProgressEvent) => any;
+    onloadstart: (this: this, ev: Event) => any;
+    onprogress: (this: this, ev: ProgressEvent) => any;
+    ontimeout: (this: this, ev: ProgressEvent) => any;
+    addEventListener(type: "abort", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "error", listener: (this: this, ev: ErrorEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "load", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadend", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "loadstart", listener: (this: this, ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "progress", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "timeout", listener: (this: this, ev: ProgressEvent) => any, useCapture?: boolean): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 }
 
-interface IDBObjectStoreParameters {
-    keyPath?: string | string[];
-    autoIncrement?: boolean;
+interface StorageEventInit extends EventInit {
+    key?: string;
+    oldValue?: string;
+    newValue?: string;
+    url: string;
+    storageArea?: Storage;
 }
 
-interface IDBIndexParameters {
-    unique?: boolean;
-    multiEntry?: boolean;
+interface Canvas2DContextAttributes {
+    alpha?: boolean;
+    willReadFrequently?: boolean;
+    storage?: boolean;
+    [attribute: string]: boolean | string | undefined;
 }
 
 interface NodeListOf<TNode extends Node> extends NodeList {
@@ -17969,6 +19748,12 @@ interface NodeListOf<TNode extends Node> extends NodeList {
     [index: number]: TNode;
 }
 
+interface HTMLCollectionOf<T extends Element> extends HTMLCollection {
+    item(index: number): T;
+    namedItem(name: string): T;
+    [index: number]: T;
+}
+
 interface BlobPropertyBag {
     type?: string;
     endings?: string;
@@ -17998,13 +19783,204 @@ interface ProgressEventInit extends EventInit {
     total?: number;
 }
 
-interface HTMLTemplateElement extends HTMLElement {
-    content: DocumentFragment;
+interface ScrollOptions {
+    behavior?: ScrollBehavior;
 }
 
-declare var HTMLTemplateElement: {
-    prototype: HTMLTemplateElement;
-    new(): HTMLTemplateElement;
+interface ScrollToOptions extends ScrollOptions {
+    left?: number;
+    top?: number;
+}
+
+interface ScrollIntoViewOptions extends ScrollOptions {
+    block?: ScrollLogicalPosition;
+    inline?: ScrollLogicalPosition;
+}
+
+interface ClipboardEventInit extends EventInit {
+    data?: string;
+    dataType?: string;
+}
+
+interface IDBArrayKey extends Array<IDBValidKey> {
+}
+
+interface RsaKeyGenParams extends Algorithm {
+    modulusLength: number;
+    publicExponent: Uint8Array;
+}
+
+interface RsaHashedKeyGenParams extends RsaKeyGenParams {
+    hash: AlgorithmIdentifier;
+}
+
+interface RsaKeyAlgorithm extends KeyAlgorithm {
+    modulusLength: number;
+    publicExponent: Uint8Array;
+}
+
+interface RsaHashedKeyAlgorithm extends RsaKeyAlgorithm {
+    hash: AlgorithmIdentifier;
+}
+
+interface RsaHashedImportParams {
+    hash: AlgorithmIdentifier;
+}
+
+interface RsaPssParams {
+    saltLength: number;
+}
+
+interface RsaOaepParams extends Algorithm {
+    label?: BufferSource;
+}
+
+interface EcdsaParams extends Algorithm {
+    hash: AlgorithmIdentifier;
+}
+
+interface EcKeyGenParams extends Algorithm {
+    namedCurve: string;
+}
+
+interface EcKeyAlgorithm extends KeyAlgorithm {
+    typedCurve: string;
+}
+
+interface EcKeyImportParams {
+    namedCurve: string;
+}
+
+interface EcdhKeyDeriveParams extends Algorithm {
+    public: CryptoKey;
+}
+
+interface AesCtrParams extends Algorithm {
+    counter: BufferSource;
+    length: number;
+}
+
+interface AesKeyAlgorithm extends KeyAlgorithm {
+    length: number;
+}
+
+interface AesKeyGenParams extends Algorithm {
+    length: number;
+}
+
+interface AesDerivedKeyParams extends Algorithm {
+    length: number;
+}
+
+interface AesCbcParams extends Algorithm {
+    iv: BufferSource;
+}
+
+interface AesCmacParams extends Algorithm {
+    length: number;
+}
+
+interface AesGcmParams extends Algorithm {
+    iv: BufferSource;
+    additionalData?: BufferSource;
+    tagLength?: number;
+}
+
+interface AesCfbParams extends Algorithm {
+    iv: BufferSource;
+}
+
+interface HmacImportParams extends Algorithm {
+    hash?: AlgorithmIdentifier;
+    length?: number;
+}
+
+interface HmacKeyAlgorithm extends KeyAlgorithm {
+    hash: AlgorithmIdentifier;
+    length: number;
+}
+
+interface HmacKeyGenParams extends Algorithm {
+    hash: AlgorithmIdentifier;
+    length?: number;
+}
+
+interface DhKeyGenParams extends Algorithm {
+    prime: Uint8Array;
+    generator: Uint8Array;
+}
+
+interface DhKeyAlgorithm extends KeyAlgorithm {
+    prime: Uint8Array;
+    generator: Uint8Array;
+}
+
+interface DhKeyDeriveParams extends Algorithm {
+    public: CryptoKey;
+}
+
+interface DhImportKeyParams extends Algorithm {
+    prime: Uint8Array;
+    generator: Uint8Array;
+}
+
+interface ConcatParams extends Algorithm {
+    hash?: AlgorithmIdentifier;
+    algorithmId: Uint8Array;
+    partyUInfo: Uint8Array;
+    partyVInfo: Uint8Array;
+    publicInfo?: Uint8Array;
+    privateInfo?: Uint8Array;
+}
+
+interface HkdfCtrParams extends Algorithm {
+    hash: AlgorithmIdentifier;
+    label: BufferSource;
+    context: BufferSource;
+}
+
+interface Pbkdf2Params extends Algorithm {
+    salt: BufferSource;
+    iterations: number;
+    hash: AlgorithmIdentifier;
+}
+
+interface RsaOtherPrimesInfo {
+    r: string;
+    d: string;
+    t: string;
+}
+
+interface JsonWebKey {
+    kty: string;
+    use?: string;
+    key_ops?: string[];
+    alg?: string;
+    kid?: string;
+    x5u?: string;
+    x5c?: string;
+    x5t?: string;
+    ext?: boolean;
+    crv?: string;
+    x?: string;
+    y?: string;
+    d?: string;
+    n?: string;
+    e?: string;
+    p?: string;
+    q?: string;
+    dp?: string;
+    dq?: string;
+    qi?: string;
+    oth?: RsaOtherPrimesInfo[];
+    k?: string;
+}
+
+interface ParentNode {
+    readonly children: HTMLCollection;
+    readonly firstElementChild: Element;
+    readonly lastElementChild: Element;
+    readonly childElementCount: number;
 }
 
 declare type EventListenerOrEventListenerObject = EventListener | EventListenerObject;
@@ -18040,15 +20016,23 @@ interface DecodeSuccessCallback {
     (decodedData: AudioBuffer): void;
 }
 interface DecodeErrorCallback {
-    (): void;
+    (error: DOMException): void;
 }
 interface FunctionStringCallback {
     (data: string): void;
 }
+interface NavigatorUserMediaSuccessCallback {
+    (stream: MediaStream): void;
+}
+interface NavigatorUserMediaErrorCallback {
+    (error: MediaStreamError): void;
+}
+interface ForEachCallback {
+    (keyId: any, status: string): void;
+}
 declare var Audio: {new(src?: string): HTMLAudioElement; };
 declare var Image: {new(width?: number, height?: number): HTMLImageElement; };
 declare var Option: {new(text?: string, value?: string, defaultSelected?: boolean, selected?: boolean): HTMLOptionElement; };
-declare var animationStartTime: number;
 declare var applicationCache: ApplicationCache;
 declare var clientInformation: Navigator;
 declare var closed: boolean;
@@ -18068,100 +20052,102 @@ declare var length: number;
 declare var location: Location;
 declare var locationbar: BarProp;
 declare var menubar: BarProp;
-declare var msAnimationStartTime: number;
-declare var name: string;
+declare var msCredentials: MSCredentials;
+declare const name: never;
 declare var navigator: Navigator;
 declare var offscreenBuffering: string | boolean;
-declare var onabort: (ev: Event) => any;
-declare var onafterprint: (ev: Event) => any;
-declare var onbeforeprint: (ev: Event) => any;
-declare var onbeforeunload: (ev: BeforeUnloadEvent) => any;
-declare var onblur: (ev: FocusEvent) => any;
-declare var oncanplay: (ev: Event) => any;
-declare var oncanplaythrough: (ev: Event) => any;
-declare var onchange: (ev: Event) => any;
-declare var onclick: (ev: MouseEvent) => any;
-declare var oncompassneedscalibration: (ev: Event) => any;
-declare var oncontextmenu: (ev: PointerEvent) => any;
-declare var ondblclick: (ev: MouseEvent) => any;
-declare var ondevicemotion: (ev: DeviceMotionEvent) => any;
-declare var ondeviceorientation: (ev: DeviceOrientationEvent) => any;
-declare var ondrag: (ev: DragEvent) => any;
-declare var ondragend: (ev: DragEvent) => any;
-declare var ondragenter: (ev: DragEvent) => any;
-declare var ondragleave: (ev: DragEvent) => any;
-declare var ondragover: (ev: DragEvent) => any;
-declare var ondragstart: (ev: DragEvent) => any;
-declare var ondrop: (ev: DragEvent) => any;
-declare var ondurationchange: (ev: Event) => any;
-declare var onemptied: (ev: Event) => any;
-declare var onended: (ev: Event) => any;
+declare var onabort: (this: Window, ev: UIEvent) => any;
+declare var onafterprint: (this: Window, ev: Event) => any;
+declare var onbeforeprint: (this: Window, ev: Event) => any;
+declare var onbeforeunload: (this: Window, ev: BeforeUnloadEvent) => any;
+declare var onblur: (this: Window, ev: FocusEvent) => any;
+declare var oncanplay: (this: Window, ev: Event) => any;
+declare var oncanplaythrough: (this: Window, ev: Event) => any;
+declare var onchange: (this: Window, ev: Event) => any;
+declare var onclick: (this: Window, ev: MouseEvent) => any;
+declare var oncompassneedscalibration: (this: Window, ev: Event) => any;
+declare var oncontextmenu: (this: Window, ev: PointerEvent) => any;
+declare var ondblclick: (this: Window, ev: MouseEvent) => any;
+declare var ondevicelight: (this: Window, ev: DeviceLightEvent) => any;
+declare var ondevicemotion: (this: Window, ev: DeviceMotionEvent) => any;
+declare var ondeviceorientation: (this: Window, ev: DeviceOrientationEvent) => any;
+declare var ondrag: (this: Window, ev: DragEvent) => any;
+declare var ondragend: (this: Window, ev: DragEvent) => any;
+declare var ondragenter: (this: Window, ev: DragEvent) => any;
+declare var ondragleave: (this: Window, ev: DragEvent) => any;
+declare var ondragover: (this: Window, ev: DragEvent) => any;
+declare var ondragstart: (this: Window, ev: DragEvent) => any;
+declare var ondrop: (this: Window, ev: DragEvent) => any;
+declare var ondurationchange: (this: Window, ev: Event) => any;
+declare var onemptied: (this: Window, ev: Event) => any;
+declare var onended: (this: Window, ev: MediaStreamErrorEvent) => any;
 declare var onerror: ErrorEventHandler;
-declare var onfocus: (ev: FocusEvent) => any;
-declare var onhashchange: (ev: HashChangeEvent) => any;
-declare var oninput: (ev: Event) => any;
-declare var onkeydown: (ev: KeyboardEvent) => any;
-declare var onkeypress: (ev: KeyboardEvent) => any;
-declare var onkeyup: (ev: KeyboardEvent) => any;
-declare var onload: (ev: Event) => any;
-declare var onloadeddata: (ev: Event) => any;
-declare var onloadedmetadata: (ev: Event) => any;
-declare var onloadstart: (ev: Event) => any;
-declare var onmessage: (ev: MessageEvent) => any;
-declare var onmousedown: (ev: MouseEvent) => any;
-declare var onmouseenter: (ev: MouseEvent) => any;
-declare var onmouseleave: (ev: MouseEvent) => any;
-declare var onmousemove: (ev: MouseEvent) => any;
-declare var onmouseout: (ev: MouseEvent) => any;
-declare var onmouseover: (ev: MouseEvent) => any;
-declare var onmouseup: (ev: MouseEvent) => any;
-declare var onmousewheel: (ev: MouseWheelEvent) => any;
-declare var onmsgesturechange: (ev: MSGestureEvent) => any;
-declare var onmsgesturedoubletap: (ev: MSGestureEvent) => any;
-declare var onmsgestureend: (ev: MSGestureEvent) => any;
-declare var onmsgesturehold: (ev: MSGestureEvent) => any;
-declare var onmsgesturestart: (ev: MSGestureEvent) => any;
-declare var onmsgesturetap: (ev: MSGestureEvent) => any;
-declare var onmsinertiastart: (ev: MSGestureEvent) => any;
-declare var onmspointercancel: (ev: MSPointerEvent) => any;
-declare var onmspointerdown: (ev: MSPointerEvent) => any;
-declare var onmspointerenter: (ev: MSPointerEvent) => any;
-declare var onmspointerleave: (ev: MSPointerEvent) => any;
-declare var onmspointermove: (ev: MSPointerEvent) => any;
-declare var onmspointerout: (ev: MSPointerEvent) => any;
-declare var onmspointerover: (ev: MSPointerEvent) => any;
-declare var onmspointerup: (ev: MSPointerEvent) => any;
-declare var onoffline: (ev: Event) => any;
-declare var ononline: (ev: Event) => any;
-declare var onorientationchange: (ev: Event) => any;
-declare var onpagehide: (ev: PageTransitionEvent) => any;
-declare var onpageshow: (ev: PageTransitionEvent) => any;
-declare var onpause: (ev: Event) => any;
-declare var onplay: (ev: Event) => any;
-declare var onplaying: (ev: Event) => any;
-declare var onpopstate: (ev: PopStateEvent) => any;
-declare var onprogress: (ev: ProgressEvent) => any;
-declare var onratechange: (ev: Event) => any;
-declare var onreadystatechange: (ev: ProgressEvent) => any;
-declare var onreset: (ev: Event) => any;
-declare var onresize: (ev: UIEvent) => any;
-declare var onscroll: (ev: UIEvent) => any;
-declare var onseeked: (ev: Event) => any;
-declare var onseeking: (ev: Event) => any;
-declare var onselect: (ev: UIEvent) => any;
-declare var onstalled: (ev: Event) => any;
-declare var onstorage: (ev: StorageEvent) => any;
-declare var onsubmit: (ev: Event) => any;
-declare var onsuspend: (ev: Event) => any;
-declare var ontimeupdate: (ev: Event) => any;
-declare var ontouchcancel: any;
-declare var ontouchend: any;
-declare var ontouchmove: any;
-declare var ontouchstart: any;
-declare var onunload: (ev: Event) => any;
-declare var onvolumechange: (ev: Event) => any;
-declare var onwaiting: (ev: Event) => any;
-declare var opener: Window;
+declare var onfocus: (this: Window, ev: FocusEvent) => any;
+declare var onhashchange: (this: Window, ev: HashChangeEvent) => any;
+declare var oninput: (this: Window, ev: Event) => any;
+declare var oninvalid: (this: Window, ev: Event) => any;
+declare var onkeydown: (this: Window, ev: KeyboardEvent) => any;
+declare var onkeypress: (this: Window, ev: KeyboardEvent) => any;
+declare var onkeyup: (this: Window, ev: KeyboardEvent) => any;
+declare var onload: (this: Window, ev: Event) => any;
+declare var onloadeddata: (this: Window, ev: Event) => any;
+declare var onloadedmetadata: (this: Window, ev: Event) => any;
+declare var onloadstart: (this: Window, ev: Event) => any;
+declare var onmessage: (this: Window, ev: MessageEvent) => any;
+declare var onmousedown: (this: Window, ev: MouseEvent) => any;
+declare var onmouseenter: (this: Window, ev: MouseEvent) => any;
+declare var onmouseleave: (this: Window, ev: MouseEvent) => any;
+declare var onmousemove: (this: Window, ev: MouseEvent) => any;
+declare var onmouseout: (this: Window, ev: MouseEvent) => any;
+declare var onmouseover: (this: Window, ev: MouseEvent) => any;
+declare var onmouseup: (this: Window, ev: MouseEvent) => any;
+declare var onmousewheel: (this: Window, ev: WheelEvent) => any;
+declare var onmsgesturechange: (this: Window, ev: MSGestureEvent) => any;
+declare var onmsgesturedoubletap: (this: Window, ev: MSGestureEvent) => any;
+declare var onmsgestureend: (this: Window, ev: MSGestureEvent) => any;
+declare var onmsgesturehold: (this: Window, ev: MSGestureEvent) => any;
+declare var onmsgesturestart: (this: Window, ev: MSGestureEvent) => any;
+declare var onmsgesturetap: (this: Window, ev: MSGestureEvent) => any;
+declare var onmsinertiastart: (this: Window, ev: MSGestureEvent) => any;
+declare var onmspointercancel: (this: Window, ev: MSPointerEvent) => any;
+declare var onmspointerdown: (this: Window, ev: MSPointerEvent) => any;
+declare var onmspointerenter: (this: Window, ev: MSPointerEvent) => any;
+declare var onmspointerleave: (this: Window, ev: MSPointerEvent) => any;
+declare var onmspointermove: (this: Window, ev: MSPointerEvent) => any;
+declare var onmspointerout: (this: Window, ev: MSPointerEvent) => any;
+declare var onmspointerover: (this: Window, ev: MSPointerEvent) => any;
+declare var onmspointerup: (this: Window, ev: MSPointerEvent) => any;
+declare var onoffline: (this: Window, ev: Event) => any;
+declare var ononline: (this: Window, ev: Event) => any;
+declare var onorientationchange: (this: Window, ev: Event) => any;
+declare var onpagehide: (this: Window, ev: PageTransitionEvent) => any;
+declare var onpageshow: (this: Window, ev: PageTransitionEvent) => any;
+declare var onpause: (this: Window, ev: Event) => any;
+declare var onplay: (this: Window, ev: Event) => any;
+declare var onplaying: (this: Window, ev: Event) => any;
+declare var onpopstate: (this: Window, ev: PopStateEvent) => any;
+declare var onprogress: (this: Window, ev: ProgressEvent) => any;
+declare var onratechange: (this: Window, ev: Event) => any;
+declare var onreadystatechange: (this: Window, ev: ProgressEvent) => any;
+declare var onreset: (this: Window, ev: Event) => any;
+declare var onresize: (this: Window, ev: UIEvent) => any;
+declare var onscroll: (this: Window, ev: UIEvent) => any;
+declare var onseeked: (this: Window, ev: Event) => any;
+declare var onseeking: (this: Window, ev: Event) => any;
+declare var onselect: (this: Window, ev: UIEvent) => any;
+declare var onstalled: (this: Window, ev: Event) => any;
+declare var onstorage: (this: Window, ev: StorageEvent) => any;
+declare var onsubmit: (this: Window, ev: Event) => any;
+declare var onsuspend: (this: Window, ev: Event) => any;
+declare var ontimeupdate: (this: Window, ev: Event) => any;
+declare var ontouchcancel: (ev: TouchEvent) => any;
+declare var ontouchend: (ev: TouchEvent) => any;
+declare var ontouchmove: (ev: TouchEvent) => any;
+declare var ontouchstart: (ev: TouchEvent) => any;
+declare var onunload: (this: Window, ev: Event) => any;
+declare var onvolumechange: (this: Window, ev: Event) => any;
+declare var onwaiting: (this: Window, ev: Event) => any;
+declare var opener: any;
 declare var orientation: string | number;
 declare var outerHeight: number;
 declare var outerWidth: number;
@@ -18185,7 +20171,6 @@ declare var styleMedia: StyleMedia;
 declare var toolbar: BarProp;
 declare var top: Window;
 declare var window: Window;
-declare var URL: URL;
 declare function alert(message?: any): void;
 declare function blur(): void;
 declare function cancelAnimationFrame(handle: number): void;
@@ -18199,14 +20184,11 @@ declare function getSelection(): Selection;
 declare function matchMedia(mediaQuery: string): MediaQueryList;
 declare function moveBy(x?: number, y?: number): void;
 declare function moveTo(x?: number, y?: number): void;
-declare function msCancelRequestAnimationFrame(handle: number): void;
-declare function msMatchMedia(mediaQuery: string): MediaQueryList;
-declare function msRequestAnimationFrame(callback: FrameRequestCallback): number;
 declare function msWriteProfilerMark(profilerMarkName: string): void;
-declare function open(url?: string, target?: string, features?: string, replace?: boolean): any;
-declare function postMessage(message: any, targetOrigin: string, ports?: any): void;
+declare function open(url?: string, target?: string, features?: string, replace?: boolean): Window;
+declare function postMessage(message: any, targetOrigin: string, transfer?: any[]): void;
 declare function print(): void;
-declare function prompt(message?: string, _default?: string): string;
+declare function prompt(message?: string, _default?: string): string | null;
 declare function releaseEvents(): void;
 declare function requestAnimationFrame(callback: FrameRequestCallback): number;
 declare function resizeBy(x?: number, y?: number): void;
@@ -18214,141 +20196,173 @@ declare function resizeTo(x?: number, y?: number): void;
 declare function scroll(x?: number, y?: number): void;
 declare function scrollBy(x?: number, y?: number): void;
 declare function scrollTo(x?: number, y?: number): void;
+declare function webkitCancelAnimationFrame(handle: number): void;
 declare function webkitConvertPointFromNodeToPage(node: Node, pt: WebKitPoint): WebKitPoint;
 declare function webkitConvertPointFromPageToNode(node: Node, pt: WebKitPoint): WebKitPoint;
+declare function webkitRequestAnimationFrame(callback: FrameRequestCallback): number;
+declare function scroll(options?: ScrollToOptions): void;
+declare function scrollTo(options?: ScrollToOptions): void;
+declare function scrollBy(options?: ScrollToOptions): void;
 declare function toString(): string;
-declare function addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+declare function addEventListener(type: string, listener?: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 declare function dispatchEvent(evt: Event): boolean;
-declare function removeEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+declare function removeEventListener(type: string, listener?: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 declare function clearInterval(handle: number): void;
 declare function clearTimeout(handle: number): void;
+declare function setInterval(handler: (...args: any[]) => void, timeout: number): number;
 declare function setInterval(handler: any, timeout?: any, ...args: any[]): number;
+declare function setTimeout(handler: (...args: any[]) => void, timeout: number): number;
 declare function setTimeout(handler: any, timeout?: any, ...args: any[]): number;
 declare function clearImmediate(handle: number): void;
-declare function msClearImmediate(handle: number): void;
-declare function msSetImmediate(expression: any, ...args: any[]): number;
-declare function setImmediate(expression: any, ...args: any[]): number;
+declare function setImmediate(handler: (...args: any[]) => void): number;
+declare function setImmediate(handler: any, ...args: any[]): number;
 declare var sessionStorage: Storage;
 declare var localStorage: Storage;
 declare var console: Console;
-declare var onpointercancel: (ev: PointerEvent) => any;
-declare var onpointerdown: (ev: PointerEvent) => any;
-declare var onpointerenter: (ev: PointerEvent) => any;
-declare var onpointerleave: (ev: PointerEvent) => any;
-declare var onpointermove: (ev: PointerEvent) => any;
-declare var onpointerout: (ev: PointerEvent) => any;
-declare var onpointerover: (ev: PointerEvent) => any;
-declare var onpointerup: (ev: PointerEvent) => any;
-declare var onwheel: (ev: WheelEvent) => any;
+declare var onpointercancel: (this: Window, ev: PointerEvent) => any;
+declare var onpointerdown: (this: Window, ev: PointerEvent) => any;
+declare var onpointerenter: (this: Window, ev: PointerEvent) => any;
+declare var onpointerleave: (this: Window, ev: PointerEvent) => any;
+declare var onpointermove: (this: Window, ev: PointerEvent) => any;
+declare var onpointerout: (this: Window, ev: PointerEvent) => any;
+declare var onpointerover: (this: Window, ev: PointerEvent) => any;
+declare var onpointerup: (this: Window, ev: PointerEvent) => any;
+declare var onwheel: (this: Window, ev: WheelEvent) => any;
 declare var indexedDB: IDBFactory;
-declare var msIndexedDB: IDBFactory;
 declare function atob(encodedString: string): string;
 declare function btoa(rawString: string): string;
-declare function addEventListener(type: "MSGestureChange", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "MSGestureDoubleTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "MSGestureEnd", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "MSGestureHold", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "MSGestureStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "MSGestureTap", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "MSInertiaStart", listener: (ev: MSGestureEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "MSPointerCancel", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "MSPointerDown", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "MSPointerEnter", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "MSPointerLeave", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "MSPointerMove", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "MSPointerOut", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "MSPointerOver", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "MSPointerUp", listener: (ev: MSPointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "abort", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "afterprint", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "beforeprint", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "beforeunload", listener: (ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "blur", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "canplay", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "canplaythrough", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "change", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "click", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "compassneedscalibration", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "contextmenu", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "dblclick", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "devicemotion", listener: (ev: DeviceMotionEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "deviceorientation", listener: (ev: DeviceOrientationEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "drag", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "dragend", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "dragenter", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "dragleave", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "dragover", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "dragstart", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "drop", listener: (ev: DragEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "durationchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "emptied", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "ended", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "focus", listener: (ev: FocusEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "hashchange", listener: (ev: HashChangeEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "input", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "keydown", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "keypress", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "keyup", listener: (ev: KeyboardEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "load", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "loadeddata", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "loadedmetadata", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "loadstart", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "message", listener: (ev: MessageEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "mousedown", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "mouseenter", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "mouseleave", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "mousemove", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "mouseout", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "mouseover", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "mouseup", listener: (ev: MouseEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "mousewheel", listener: (ev: MouseWheelEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "offline", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "online", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "orientationchange", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "pagehide", listener: (ev: PageTransitionEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "pageshow", listener: (ev: PageTransitionEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "pause", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "play", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "playing", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "pointercancel", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "pointerdown", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "pointerenter", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "pointerleave", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "pointermove", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "pointerout", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "pointerover", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "pointerup", listener: (ev: PointerEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "popstate", listener: (ev: PopStateEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "progress", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "ratechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "readystatechange", listener: (ev: ProgressEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "reset", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "resize", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "scroll", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "seeked", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "seeking", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "select", listener: (ev: UIEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "stalled", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "storage", listener: (ev: StorageEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "submit", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "suspend", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "timeupdate", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "unload", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "volumechange", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "waiting", listener: (ev: Event) => any, useCapture?: boolean): void;
-declare function addEventListener(type: "wheel", listener: (ev: WheelEvent) => any, useCapture?: boolean): void;
-declare function addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;interface DOMTokenList {
-    [Symbol.iterator](): IterableIterator<string>;
-}
-
-interface NodeList {
-    [Symbol.iterator](): IterableIterator<Node>
-}
-
-interface NodeListOf<TNode extends Node> {
-    [Symbol.iterator](): IterableIterator<TNode>
-}
-
+declare function addEventListener(type: "MSGestureChange", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "MSGestureDoubleTap", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "MSGestureEnd", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "MSGestureHold", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "MSGestureStart", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "MSGestureTap", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "MSInertiaStart", listener: (this: Window, ev: MSGestureEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "MSPointerCancel", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "MSPointerDown", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "MSPointerEnter", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "MSPointerLeave", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "MSPointerMove", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "MSPointerOut", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "MSPointerOver", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "MSPointerUp", listener: (this: Window, ev: MSPointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "abort", listener: (this: Window, ev: UIEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "afterprint", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "beforeprint", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "beforeunload", listener: (this: Window, ev: BeforeUnloadEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "blur", listener: (this: Window, ev: FocusEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "canplay", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "canplaythrough", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "change", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "click", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "compassneedscalibration", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "contextmenu", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "dblclick", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "devicelight", listener: (this: Window, ev: DeviceLightEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "devicemotion", listener: (this: Window, ev: DeviceMotionEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "deviceorientation", listener: (this: Window, ev: DeviceOrientationEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "drag", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "dragend", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "dragenter", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "dragleave", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "dragover", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "dragstart", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "drop", listener: (this: Window, ev: DragEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "durationchange", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "emptied", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "ended", listener: (this: Window, ev: MediaStreamErrorEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "focus", listener: (this: Window, ev: FocusEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "hashchange", listener: (this: Window, ev: HashChangeEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "input", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "invalid", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "keydown", listener: (this: Window, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "keypress", listener: (this: Window, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "keyup", listener: (this: Window, ev: KeyboardEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "load", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "loadeddata", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "loadedmetadata", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "loadstart", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "message", listener: (this: Window, ev: MessageEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "mousedown", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "mouseenter", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "mouseleave", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "mousemove", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "mouseout", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "mouseover", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "mouseup", listener: (this: Window, ev: MouseEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "mousewheel", listener: (this: Window, ev: WheelEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "offline", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "online", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "orientationchange", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "pagehide", listener: (this: Window, ev: PageTransitionEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "pageshow", listener: (this: Window, ev: PageTransitionEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "pause", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "play", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "playing", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "pointercancel", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "pointerdown", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "pointerenter", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "pointerleave", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "pointermove", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "pointerout", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "pointerover", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "pointerup", listener: (this: Window, ev: PointerEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "popstate", listener: (this: Window, ev: PopStateEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "progress", listener: (this: Window, ev: ProgressEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "ratechange", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "readystatechange", listener: (this: Window, ev: ProgressEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "reset", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "resize", listener: (this: Window, ev: UIEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "scroll", listener: (this: Window, ev: UIEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "seeked", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "seeking", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "select", listener: (this: Window, ev: UIEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "stalled", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "storage", listener: (this: Window, ev: StorageEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "submit", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "suspend", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "timeupdate", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "unload", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "volumechange", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "waiting", listener: (this: Window, ev: Event) => any, useCapture?: boolean): void;
+declare function addEventListener(type: "wheel", listener: (this: Window, ev: WheelEvent) => any, useCapture?: boolean): void;
+declare function addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+type AAGUID = string;
+type AlgorithmIdentifier = string | Algorithm;
+type ConstrainBoolean = boolean | ConstrainBooleanParameters;
+type ConstrainDOMString = string | string[] | ConstrainDOMStringParameters;
+type ConstrainDouble = number | ConstrainDoubleRange;
+type ConstrainLong = number | ConstrainLongRange;
+type CryptoOperationData = ArrayBufferView;
+type GLbitfield = number;
+type GLboolean = boolean;
+type GLbyte = number;
+type GLclampf = number;
+type GLenum = number;
+type GLfloat = number;
+type GLint = number;
+type GLintptr = number;
+type GLshort = number;
+type GLsizei = number;
+type GLsizeiptr = number;
+type GLubyte = number;
+type GLuint = number;
+type GLushort = number;
+type IDBKeyPath = string;
+type KeyFormat = string;
+type KeyType = string;
+type KeyUsage = string;
+type MSInboundPayload = MSVideoRecvPayload | MSAudioRecvPayload;
+type MSLocalClientEvent = MSLocalClientEventBase | MSAudioLocalClientEvent;
+type MSOutboundPayload = MSVideoSendPayload | MSAudioSendPayload;
+type RTCIceGatherCandidate = RTCIceCandidate | RTCIceCandidateComplete;
+type RTCTransport = RTCDtlsTransport | RTCSrtpSdesTransport;
+type payloadtype = number;
+type ScrollBehavior = "auto" | "instant" | "smooth";
+type ScrollLogicalPosition = "start" | "center" | "end" | "nearest";
+type IDBValidKey = number | string | Date | IDBArrayKey;
+type BufferSource = ArrayBuffer | ArrayBufferView;
+type MouseWheelEvent = WheelEvent;
 /////////////////////////////
 /// WorkerGlobalScope APIs 
 /////////////////////////////
@@ -18632,3 +20646,29 @@ interface VBArrayConstructor {
 }
 
 declare var VBArray: VBArrayConstructor;
+
+/**
+ * Automation date (VT_DATE)
+ */
+interface VarDate { }
+
+interface DateConstructor {
+    new (vd: VarDate): Date;
+}
+
+interface Date {
+    getVarDate: () => VarDate;
+}
+/// <reference path="lib.dom.generated.d.ts" />
+
+interface DOMTokenList {
+    [Symbol.iterator](): IterableIterator<string>;
+}
+
+interface NodeList {
+    [Symbol.iterator](): IterableIterator<Node>
+}
+
+interface NodeListOf<TNode extends Node> {
+    [Symbol.iterator](): IterableIterator<TNode>
+}
diff --git a/lib/decl/webrtc/MediaStream.d.ts b/lib/decl/webrtc/MediaStream.d.ts
deleted file mode 100644
index a2306b621..000000000
--- a/lib/decl/webrtc/MediaStream.d.ts
+++ /dev/null
@@ -1,199 +0,0 @@
-// Type definitions for WebRTC
-// Project: http://dev.w3.org/2011/webrtc/
-// Definitions by: Ken Smith <https://github.com/smithkl42/>
-// Definitions: https://github.com/borisyankov/DefinitelyTyped
-
-// Taken from http://dev.w3.org/2011/webrtc/editor/getusermedia.html
-// version: W3C Editor's Draft 29 June 2015
-
-interface ConstrainBooleanParameters {
-    exact?: boolean;
-    ideal?: boolean;
-}
-
-interface NumberRange {
-    max?: number;
-    min?: number;
-}
-
-interface ConstrainNumberRange extends NumberRange {
-    exact?: number;
-    ideal?: number;
-}
-
-interface ConstrainStringParameters {
-    exact?: string | string[];
-    ideal?: string | string[];
-}
-
-interface MediaStreamConstraints {
-    video?: boolean | MediaTrackConstraints;
-    audio?: boolean | MediaTrackConstraints;
-}
-
-declare module W3C {
-    type LongRange = NumberRange;
-    type DoubleRange = NumberRange;
-    type ConstrainBoolean = boolean | ConstrainBooleanParameters;
-    type ConstrainNumber = number | ConstrainNumberRange;
-    type ConstrainLong = ConstrainNumber;
-    type ConstrainDouble = ConstrainNumber;
-    type ConstrainString = string | string[] | ConstrainStringParameters;
-}
-
-interface MediaTrackConstraints extends MediaTrackConstraintSet {
-    advanced?: MediaTrackConstraintSet[];
-}
-
-interface MediaTrackConstraintSet {
-    width?: W3C.ConstrainLong;
-    height?: W3C.ConstrainLong;
-    aspectRatio?: W3C.ConstrainDouble;
-    frameRate?: W3C.ConstrainDouble;
-    facingMode?: W3C.ConstrainString;
-    volume?: W3C.ConstrainDouble;
-    sampleRate?: W3C.ConstrainLong;
-    sampleSize?: W3C.ConstrainLong;
-    echoCancellation?: W3C.ConstrainBoolean;
-    latency?: W3C.ConstrainDouble;
-    deviceId?: W3C.ConstrainString;
-    groupId?: W3C.ConstrainString;
-}
-
-interface MediaTrackSupportedConstraints {
-    width?: boolean;
-    height?: boolean;
-    aspectRatio?: boolean;
-    frameRate?: boolean;
-    facingMode?: boolean;
-    volume?: boolean;
-    sampleRate?: boolean;
-    sampleSize?: boolean;
-    echoCancellation?: boolean;
-    latency?: boolean;
-    deviceId?: boolean;
-    groupId?: boolean;
-}
-
-interface MediaStream extends EventTarget {
-    id: string;
-    active: boolean;
-
-    onactive: EventListener;
-    oninactive: EventListener;
-    onaddtrack: (event: MediaStreamTrackEvent) => any;
-    onremovetrack: (event: MediaStreamTrackEvent) => any;
-
-    clone(): MediaStream;
-    stop(): void;
-
-    getAudioTracks(): MediaStreamTrack[];
-    getVideoTracks(): MediaStreamTrack[];
-    getTracks(): MediaStreamTrack[];
-
-    getTrackById(trackId: string): MediaStreamTrack;
-
-    addTrack(track: MediaStreamTrack): void;
-    removeTrack(track: MediaStreamTrack): void;
-}
-
-interface MediaStreamTrackEvent extends Event {
-    track: MediaStreamTrack;
-}
-
-declare enum MediaStreamTrackState {
-	"live",
-    "ended"
-}
-
-interface MediaStreamTrack extends EventTarget {
-    id: string;
-    kind: string;
-    label: string;
-    enabled: boolean;
-    muted: boolean;
-    remote: boolean;
-    readyState: MediaStreamTrackState;
-
-    onmute: EventListener;
-    onunmute: EventListener;
-    onended: EventListener;
-    onoverconstrained: EventListener;
-
-    clone(): MediaStreamTrack;
-
-    stop(): void;
-
-    getCapabilities(): MediaTrackCapabilities;
-    getConstraints(): MediaTrackConstraints;
-    getSettings(): MediaTrackSettings;
-    applyConstraints(constraints: MediaTrackConstraints): Promise<void>;
-}
-
-interface MediaTrackCapabilities {
-    width: number | W3C.LongRange;
-    height: number | W3C.LongRange;
-    aspectRatio: number | W3C.DoubleRange;
-    frameRate: number | W3C.DoubleRange;
-    facingMode: string;
-    volume: number | W3C.DoubleRange;
-    sampleRate: number | W3C.LongRange;
-    sampleSize: number | W3C.LongRange;
-    echoCancellation: boolean[];
-    latency: number | W3C.DoubleRange;
-    deviceId: string;
-    groupId: string;
-}
-
-interface MediaTrackSettings {
-    width: number;
-    height: number;
-    aspectRatio: number;
-    frameRate: number;
-    facingMode: string;
-    volume: number;
-    sampleRate: number;
-    sampleSize: number;
-    echoCancellation: boolean;
-    latency: number;
-    deviceId: string;
-    groupId: string;
-}
-
-interface MediaStreamError {
-    name: string;
-    message: string;
-    constraintName: string;
-}
-
-interface NavigatorGetUserMedia {
-    (constraints: MediaStreamConstraints,
-     successCallback: (stream: MediaStream) => void,
-     errorCallback: (error: MediaStreamError) => void): void;
-}
-
-interface Navigator {
-    getUserMedia: NavigatorGetUserMedia;
-
-    webkitGetUserMedia: NavigatorGetUserMedia;
-
-    mozGetUserMedia: NavigatorGetUserMedia;
-
-    msGetUserMedia: NavigatorGetUserMedia;
-
-    mediaDevices: MediaDevices;
-}
-
-interface MediaDevices {
-    getSupportedConstraints(): MediaTrackSupportedConstraints;
-
-    getUserMedia(constraints: MediaStreamConstraints): Promise<MediaStream>;
-    enumerateDevices(): Promise<MediaDeviceInfo[]>;
-}
-
-interface MediaDeviceInfo {
-    label: string;
-    id: string;
-    kind: string;
-    facing: string;
-}
diff --git a/lib/wallet/db.ts b/lib/wallet/db.ts
index 7fe635b9e..5104f28fb 100644
--- a/lib/wallet/db.ts
+++ b/lib/wallet/db.ts
@@ -93,7 +93,7 @@ export function exportDb(db: IDBDatabase): Promise<any> {
 
   return new Promise((resolve, reject) => {
 
-    let tx = db.transaction(db.objectStoreNames);
+    let tx = db.transaction(Array.from(db.objectStoreNames));
     tx.addEventListener("complete", () => {
       resolve(dump);
     });
diff --git a/lib/wallet/emscriptif.ts b/lib/wallet/emscriptif.ts
index a12128666..34ef4d377 100644
--- a/lib/wallet/emscriptif.ts
+++ b/lib/wallet/emscriptif.ts
@@ -164,7 +164,7 @@ enum RandomQuality {
 
 
 abstract class ArenaObject {
-  private _nativePtr: number | undefined = undefined;
+  protected _nativePtr: number | undefined = undefined;
   arena: Arena;
 
   abstract destroy(): void;
@@ -440,7 +440,8 @@ abstract class PackedArenaObject extends ArenaObject {
   }
 
   alloc() {
-    if (!this.nativePtr) {
+    super.alloc(this.size());
+    if (!this._nativePtr) {
       this.nativePtr = emscAlloc.malloc(this.size());
     }
   }
@@ -775,7 +776,7 @@ export class AbsoluteTimeNbo extends PackedArenaObject {
     x.alloc();
     let r = /Date\(([0-9]+)\)/;
     let m = r.exec(s);
-    if (m.length != 2) {
+    if (!m || m.length != 2) {
       throw Error();
     }
     let n = parseInt(m[1]) * 1000000;
diff --git a/lib/wallet/wallet.ts b/lib/wallet/wallet.ts
index 209c7a253..367c9cbcd 100644
--- a/lib/wallet/wallet.ts
+++ b/lib/wallet/wallet.ts
@@ -373,18 +373,16 @@ export class Wallet {
                     exchange.baseUrl);
         return;
       }
-      let cd = {
-        coin: coin,
-        denom: exchange.active_denoms.find((e) => e.denom_pub === coin.denomPub)
-      };
-      if (!cd.denom) {
+      let denom = exchange.active_denoms.find((e) => e.denom_pub === coin.denomPub);
+      if (!denom) {
         console.warn("denom not found (database inconsistent)");
         return;
       }
-      if (cd.denom.value.currency !== paymentAmount.currency) {
+      if (denom.value.currency !== paymentAmount.currency) {
         console.warn("same pubkey for different currencies");
         return;
       }
+      let cd = {coin, denom};
       let x = m[url];
       if (!x) {
         m[url] = [cd];
diff --git a/lib/wallet/wxMessaging.ts b/lib/wallet/wxMessaging.ts
index 401fefd56..9c08b20ca 100644
--- a/lib/wallet/wxMessaging.ts
+++ b/lib/wallet/wxMessaging.ts
@@ -64,7 +64,7 @@ function makeHandlers(db: IDBDatabase,
     },
     ["reset"]: function(detail, sender) {
       if (db) {
-        let tx = db.transaction(db.objectStoreNames, 'readwrite');
+        let tx = db.transaction(Array.from(db.objectStoreNames), 'readwrite');
         for (let i = 0; i < db.objectStoreNames.length; i++) {
           tx.objectStore(db.objectStoreNames[i]).clear();
         }
@@ -313,7 +313,7 @@ export function wxMain() {
            console.error("could not open database");
            console.error(e);
          })
-         .then((db) => {
+         .then((db: IDBDatabase) => {
            let http = new BrowserHttpLib();
            let badge = new ChromeBadge();
            let notifier = new ChromeNotifier();
diff --git a/pages/confirm-contract.tsx b/pages/confirm-contract.tsx
index e88336a2d..19b049eb5 100644
--- a/pages/confirm-contract.tsx
+++ b/pages/confirm-contract.tsx
@@ -95,7 +95,7 @@ export function main() {
     }
   };
 
-  m.mount(document.getElementById("contract"), Contract);
+  m.mount(document.getElementById("contract")!, Contract);
 
   function checkPayment() {
     chrome.runtime.sendMessage({type: 'check-pay', detail: {offer}}, (resp) => {
diff --git a/pages/confirm-create-reserve.tsx b/pages/confirm-create-reserve.tsx
index 667323044..0a509118d 100644
--- a/pages/confirm-create-reserve.tsx
+++ b/pages/confirm-create-reserve.tsx
@@ -189,7 +189,7 @@ class Controller {
 }
 
 function view(ctrl: Controller): any {
-  function* f() {
+  function* f(): IterableIterator<any> {
     yield m("p",
             i18n.parts`You are about to withdraw ${m("strong", amountToPretty(
               ctrl.amount))} from your bank account into your wallet.`);
@@ -374,8 +374,8 @@ export function main() {
   getSuggestedExchange(amount.currency)
     .then((suggestedExchangeUrl) => {
       const controller = function () { return new Controller(suggestedExchangeUrl, amount, callback_url, wt_types); };
-      var ExchangeSelection = {controller, view};
-      m.mount(document.getElementById("exchange-selection"), ExchangeSelection);
+      const ExchangeSelection = {controller, view};
+      m.mount(document.getElementById("exchange-selection")!, ExchangeSelection);
     })
     .catch((e) => {
       // TODO: provide more context information, maybe factor it out into a
diff --git a/pages/show-db.ts b/pages/show-db.ts
index 0a3a5bd46..71e74388b 100644
--- a/pages/show-db.ts
+++ b/pages/show-db.ts
@@ -48,6 +48,10 @@ function prettyPrint(obj: any) {
 
 document.addEventListener("DOMContentLoaded", () => {
   chrome.runtime.sendMessage({type: 'dump-db'}, (resp) => {
-    document.getElementById('dump').innerHTML = prettyPrint(resp);
+    const el = document.getElementById('dump');
+    if (!el) {
+      throw Error();
+    }
+    el.innerHTML = prettyPrint(resp);
   });
 });