source: trip-planner-front/node_modules/async/groupBy.js@ fa375fe

Last change on this file since fa375fe was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

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1'use strict';
2
3Object.defineProperty(exports, "__esModule", {
4 value: true
5});
6
7var _doLimit = require('./internal/doLimit');
8
9var _doLimit2 = _interopRequireDefault(_doLimit);
10
11var _groupByLimit = require('./groupByLimit');
12
13var _groupByLimit2 = _interopRequireDefault(_groupByLimit);
14
15function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
16
17/**
18 * Returns a new object, where each value corresponds to an array of items, from
19 * `coll`, that returned the corresponding key. That is, the keys of the object
20 * correspond to the values passed to the `iteratee` callback.
21 *
22 * Note: Since this function applies the `iteratee` to each item in parallel,
23 * there is no guarantee that the `iteratee` functions will complete in order.
24 * However, the values for each key in the `result` will be in the same order as
25 * the original `coll`. For Objects, the values will roughly be in the order of
26 * the original Objects' keys (but this can vary across JavaScript engines).
27 *
28 * @name groupBy
29 * @static
30 * @memberOf module:Collections
31 * @method
32 * @category Collection
33 * @param {Array|Iterable|Object} coll - A collection to iterate over.
34 * @param {AsyncFunction} iteratee - An async function to apply to each item in
35 * `coll`.
36 * The iteratee should complete with a `key` to group the value under.
37 * Invoked with (value, callback).
38 * @param {Function} [callback] - A callback which is called when all `iteratee`
39 * functions have finished, or an error occurs. Result is an `Object` whoses
40 * properties are arrays of values which returned the corresponding key.
41 * @example
42 *
43 * async.groupBy(['userId1', 'userId2', 'userId3'], function(userId, callback) {
44 * db.findById(userId, function(err, user) {
45 * if (err) return callback(err);
46 * return callback(null, user.age);
47 * });
48 * }, function(err, result) {
49 * // result is object containing the userIds grouped by age
50 * // e.g. { 30: ['userId1', 'userId3'], 42: ['userId2']};
51 * });
52 */
53exports.default = (0, _doLimit2.default)(_groupByLimit2.default, Infinity);
54module.exports = exports['default'];
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