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43 lines
1.5 KiB
43 lines
1.5 KiB
import createAggregator from './_createAggregator.js'; |
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/** |
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* Creates an array of elements split into two groups, the first of which |
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* contains elements `predicate` returns truthy for, the second of which |
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* contains elements `predicate` returns falsey for. The predicate is |
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* invoked with one argument: (value). |
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* |
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* @static |
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* @memberOf _ |
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* @since 3.0.0 |
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* @category Collection |
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* @param {Array|Object} collection The collection to iterate over. |
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* @param {Function} [predicate=_.identity] The function invoked per iteration. |
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* @returns {Array} Returns the array of grouped elements. |
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* @example |
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* |
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* var users = [ |
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* { 'user': 'barney', 'age': 36, 'active': false }, |
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* { 'user': 'fred', 'age': 40, 'active': true }, |
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* { 'user': 'pebbles', 'age': 1, 'active': false } |
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* ]; |
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* |
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* _.partition(users, function(o) { return o.active; }); |
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* // => objects for [['fred'], ['barney', 'pebbles']] |
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* |
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* // The `_.matches` iteratee shorthand. |
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* _.partition(users, { 'age': 1, 'active': false }); |
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* // => objects for [['pebbles'], ['barney', 'fred']] |
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* |
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* // The `_.matchesProperty` iteratee shorthand. |
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* _.partition(users, ['active', false]); |
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* // => objects for [['barney', 'pebbles'], ['fred']] |
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* |
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* // The `_.property` iteratee shorthand. |
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* _.partition(users, 'active'); |
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* // => objects for [['fred'], ['barney', 'pebbles']] |
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*/ |
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var partition = createAggregator(function(result, value, key) { |
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result[key ? 0 : 1].push(value); |
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}, function() { return [[], []]; }); |
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export default partition;
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