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Diffstat (limited to 'node_modules/fbjs/lib/everyObject.js')
-rw-r--r-- | node_modules/fbjs/lib/everyObject.js | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/node_modules/fbjs/lib/everyObject.js b/node_modules/fbjs/lib/everyObject.js new file mode 100644 index 000000000..bfeb0bd95 --- /dev/null +++ b/node_modules/fbjs/lib/everyObject.js @@ -0,0 +1,46 @@ +/** + * Copyright (c) 2013-present, Facebook, Inc. + * All rights reserved. + * + * This source code is licensed under the BSD-style license found in the + * LICENSE file in the root directory of this source tree. An additional grant + * of patent rights can be found in the PATENTS file in the same directory. + * + * + * @typechecks + */ + +'use strict'; + +var hasOwnProperty = Object.prototype.hasOwnProperty; + +/** + * Executes the provided `callback` once for each enumerable own property in the + * object until it finds one where callback returns a falsy value. If such a + * property is found, `everyObject` immediately returns false. Otherwise, it + * returns true. + * + * The `callback` is invoked with three arguments: + * + * - the property value + * - the property name + * - the object being traversed + * + * Properties that are added after the call to `everyObject` will not be + * visited by `callback`. If the values of existing properties are changed, the + * value passed to `callback` will be the value at the time `everyObject` + * visits them. Properties that are deleted before being visited are not + * visited. + */ +function everyObject(object, callback, context) { + for (var name in object) { + if (hasOwnProperty.call(object, name)) { + if (!callback.call(context, object[name], name, object)) { + return false; + } + } + } + return true; +} + +module.exports = everyObject;
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