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111 lines
3.3 KiB
111 lines
3.3 KiB
'use strict';
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = function (coll, iteratee, callback) {
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var eachOfImplementation = (0, _isArrayLike2.default)(coll) ? eachOfArrayLike : eachOfGeneric;
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eachOfImplementation(coll, (0, _wrapAsync2.default)(iteratee), callback);
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};
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var _isArrayLike = require('lodash/isArrayLike');
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var _isArrayLike2 = _interopRequireDefault(_isArrayLike);
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var _breakLoop = require('./internal/breakLoop');
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var _breakLoop2 = _interopRequireDefault(_breakLoop);
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var _eachOfLimit = require('./eachOfLimit');
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var _eachOfLimit2 = _interopRequireDefault(_eachOfLimit);
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var _doLimit = require('./internal/doLimit');
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var _doLimit2 = _interopRequireDefault(_doLimit);
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var _noop = require('lodash/noop');
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var _noop2 = _interopRequireDefault(_noop);
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var _once = require('./internal/once');
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var _once2 = _interopRequireDefault(_once);
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var _onlyOnce = require('./internal/onlyOnce');
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var _onlyOnce2 = _interopRequireDefault(_onlyOnce);
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var _wrapAsync = require('./internal/wrapAsync');
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var _wrapAsync2 = _interopRequireDefault(_wrapAsync);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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// eachOf implementation optimized for array-likes
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function eachOfArrayLike(coll, iteratee, callback) {
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callback = (0, _once2.default)(callback || _noop2.default);
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var index = 0,
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completed = 0,
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length = coll.length;
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if (length === 0) {
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callback(null);
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}
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function iteratorCallback(err, value) {
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if (err) {
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callback(err);
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} else if (++completed === length || value === _breakLoop2.default) {
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callback(null);
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}
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}
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for (; index < length; index++) {
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iteratee(coll[index], index, (0, _onlyOnce2.default)(iteratorCallback));
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}
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}
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// a generic version of eachOf which can handle array, object, and iterator cases.
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var eachOfGeneric = (0, _doLimit2.default)(_eachOfLimit2.default, Infinity);
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/**
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* Like [`each`]{@link module:Collections.each}, except that it passes the key (or index) as the second argument
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* to the iteratee.
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*
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* @name eachOf
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* @static
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* @memberOf module:Collections
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* @method
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* @alias forEachOf
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* @category Collection
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* @see [async.each]{@link module:Collections.each}
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* @param {Array|Iterable|Object} coll - A collection to iterate over.
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* @param {AsyncFunction} iteratee - A function to apply to each
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* item in `coll`.
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* The `key` is the item's key, or index in the case of an array.
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* Invoked with (item, key, callback).
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* @param {Function} [callback] - A callback which is called when all
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* `iteratee` functions have finished, or an error occurs. Invoked with (err).
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* @example
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*
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* var obj = {dev: "/dev.json", test: "/test.json", prod: "/prod.json"};
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* var configs = {};
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*
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* async.forEachOf(obj, function (value, key, callback) {
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* fs.readFile(__dirname + value, "utf8", function (err, data) {
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* if (err) return callback(err);
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* try {
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* configs[key] = JSON.parse(data);
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* } catch (e) {
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* return callback(e);
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* }
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* callback();
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* });
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* }, function (err) {
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* if (err) console.error(err.message);
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* // configs is now a map of JSON data
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* doSomethingWith(configs);
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* });
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*/
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module.exports = exports['default'];
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