36 lines
1.3 KiB
JavaScript
36 lines
1.3 KiB
JavaScript
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'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 = groupBySeries;
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var _groupByLimit = require('./groupByLimit.js');
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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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* The same as [`groupBy`]{@link module:Collections.groupBy} but runs only a single async operation at a time.
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*
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* @name groupBySeries
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* @static
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* @memberOf module:Collections
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* @method
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* @see [async.groupBy]{@link module:Collections.groupBy}
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* @category Collection
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* @param {Array|Iterable|AsyncIterable|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` whose
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* properties are arrays of values which returned the corresponding key.
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* @returns {Promise} a promise, if no callback is passed
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*/
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function groupBySeries(coll, iteratee, callback) {
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return (0, _groupByLimit2.default)(coll, 1, iteratee, callback);
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}
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module.exports = exports.default;
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