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author | Florian Dold <florian.dold@gmail.com> | 2017-05-03 15:35:00 +0200 |
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committer | Florian Dold <florian.dold@gmail.com> | 2017-05-03 15:35:00 +0200 |
commit | de98e0b232509d5f40c135d540a70e415272ff85 (patch) | |
tree | a79222a5b58484ab3b80d18efcaaa7ccc4769b33 /node_modules/async/eachOf.js | |
parent | e0c9d480a73fa629c1e4a47d3e721f1d2d345406 (diff) | |
download | wallet-core-de98e0b232509d5f40c135d540a70e415272ff85.tar.xz |
node_modules
Diffstat (limited to 'node_modules/async/eachOf.js')
-rw-r--r-- | node_modules/async/eachOf.js | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/node_modules/async/eachOf.js b/node_modules/async/eachOf.js new file mode 100644 index 000000000..055b9bde1 --- /dev/null +++ b/node_modules/async/eachOf.js @@ -0,0 +1,111 @@ +'use strict'; + +Object.defineProperty(exports, "__esModule", { + value: true +}); + +exports.default = function (coll, iteratee, callback) { + var eachOfImplementation = (0, _isArrayLike2.default)(coll) ? eachOfArrayLike : eachOfGeneric; + eachOfImplementation(coll, (0, _wrapAsync2.default)(iteratee), callback); +}; + +var _isArrayLike = require('lodash/isArrayLike'); + +var _isArrayLike2 = _interopRequireDefault(_isArrayLike); + +var _breakLoop = require('./internal/breakLoop'); + +var _breakLoop2 = _interopRequireDefault(_breakLoop); + +var _eachOfLimit = require('./eachOfLimit'); + +var _eachOfLimit2 = _interopRequireDefault(_eachOfLimit); + +var _doLimit = require('./internal/doLimit'); + +var _doLimit2 = _interopRequireDefault(_doLimit); + +var _noop = require('lodash/noop'); + +var _noop2 = _interopRequireDefault(_noop); + +var _once = require('./internal/once'); + +var _once2 = _interopRequireDefault(_once); + +var _onlyOnce = require('./internal/onlyOnce'); + +var _onlyOnce2 = _interopRequireDefault(_onlyOnce); + +var _wrapAsync = require('./internal/wrapAsync'); + +var _wrapAsync2 = _interopRequireDefault(_wrapAsync); + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + +// eachOf implementation optimized for array-likes +function eachOfArrayLike(coll, iteratee, callback) { + callback = (0, _once2.default)(callback || _noop2.default); + var index = 0, + completed = 0, + length = coll.length; + if (length === 0) { + callback(null); + } + + function iteratorCallback(err, value) { + if (err) { + callback(err); + } else if (++completed === length || value === _breakLoop2.default) { + callback(null); + } + } + + for (; index < length; index++) { + iteratee(coll[index], index, (0, _onlyOnce2.default)(iteratorCallback)); + } +} + +// a generic version of eachOf which can handle array, object, and iterator cases. +var eachOfGeneric = (0, _doLimit2.default)(_eachOfLimit2.default, Infinity); + +/** + * Like [`each`]{@link module:Collections.each}, except that it passes the key (or index) as the second argument + * to the iteratee. + * + * @name eachOf + * @static + * @memberOf module:Collections + * @method + * @alias forEachOf + * @category Collection + * @see [async.each]{@link module:Collections.each} + * @param {Array|Iterable|Object} coll - A collection to iterate over. + * @param {AsyncFunction} iteratee - A function to apply to each + * item in `coll`. + * The `key` is the item's key, or index in the case of an array. + * Invoked with (item, key, callback). + * @param {Function} [callback] - A callback which is called when all + * `iteratee` functions have finished, or an error occurs. Invoked with (err). + * @example + * + * var obj = {dev: "/dev.json", test: "/test.json", prod: "/prod.json"}; + * var configs = {}; + * + * async.forEachOf(obj, function (value, key, callback) { + * fs.readFile(__dirname + value, "utf8", function (err, data) { + * if (err) return callback(err); + * try { + * configs[key] = JSON.parse(data); + * } catch (e) { + * return callback(e); + * } + * callback(); + * }); + * }, function (err) { + * if (err) console.error(err.message); + * // configs is now a map of JSON data + * doSomethingWith(configs); + * }); + */ +module.exports = exports['default'];
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