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54 lines
2.1 KiB
54 lines
2.1 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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var _doLimit = require('./internal/doLimit'); |
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var _doLimit2 = _interopRequireDefault(_doLimit); |
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var _groupByLimit = require('./groupByLimit'); |
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var _groupByLimit2 = _interopRequireDefault(_groupByLimit); |
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } |
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/** |
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* Returns a new object, where each value corresponds to an array of items, from |
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* `coll`, that returned the corresponding key. That is, the keys of the object |
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* correspond to the values passed to the `iteratee` callback. |
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* |
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* Note: Since this function applies the `iteratee` to each item in parallel, |
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* there is no guarantee that the `iteratee` functions will complete in order. |
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* However, the values for each key in the `result` will be in the same order as |
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* the original `coll`. For Objects, the values will roughly be in the order of |
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* the original Objects' keys (but this can vary across JavaScript engines). |
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* |
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* @name groupBy |
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* @static |
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* @memberOf module:Collections |
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* @method |
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* @category Collection |
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* @param {Array|Iterable|Object} coll - A collection to iterate over. |
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* @param {AsyncFunction} iteratee - An async function to apply to each item in |
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* `coll`. |
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* The iteratee should complete with a `key` to group the value under. |
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* Invoked with (value, callback). |
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* @param {Function} [callback] - A callback which is called when all `iteratee` |
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* functions have finished, or an error occurs. Result is an `Object` whoses |
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* properties are arrays of values which returned the corresponding key. |
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* @example |
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* |
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* async.groupBy(['userId1', 'userId2', 'userId3'], function(userId, callback) { |
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* db.findById(userId, function(err, user) { |
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* if (err) return callback(err); |
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* return callback(null, user.age); |
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* }); |
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* }, function(err, result) { |
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* // result is object containing the userIds grouped by age |
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* // e.g. { 30: ['userId1', 'userId3'], 42: ['userId2']}; |
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* }); |
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*/ |
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exports.default = (0, _doLimit2.default)(_groupByLimit2.default, Infinity); |
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module.exports = exports['default']; |