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38 lines
1.2 KiB
JavaScript
38 lines
1.2 KiB
JavaScript
9 years ago
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var baseMatches = require('../internal/baseMatches'),
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filter = require('./filter');
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/**
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* Performs a deep comparison between each element in `collection` and the
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* source object, returning an array of all elements that have equivalent
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* property values.
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*
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* **Note:** This method supports comparing arrays, booleans, `Date` objects,
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* numbers, `Object` objects, regexes, and strings. Objects are compared by
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* their own, not inherited, enumerable properties. For comparing a single
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* own or inherited property value see `_.matchesProperty`.
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*
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* @static
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* @memberOf _
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* @category Collection
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* @param {Array|Object|string} collection The collection to search.
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* @param {Object} source The object of property values to match.
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* @returns {Array} Returns the new filtered array.
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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, 'pets': ['hoppy'] },
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* { 'user': 'fred', 'age': 40, 'active': true, 'pets': ['baby puss', 'dino'] }
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* ];
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*
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* _.pluck(_.where(users, { 'age': 36, 'active': false }), 'user');
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* // => ['barney']
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*
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* _.pluck(_.where(users, { 'pets': ['dino'] }), 'user');
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* // => ['fred']
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*/
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function where(collection, source) {
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return filter(collection, baseMatches(source));
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}
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module.exports = where;
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