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104 lines
3.7 KiB
JavaScript
104 lines
3.7 KiB
JavaScript
/**
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* lodash 3.1.0 (Custom Build) <https://lodash.com/>
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* Build: `lodash modern modularize exports="npm" -o ./`
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* Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
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* Based on Underscore.js 1.7.0 <http://underscorejs.org/LICENSE>
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* Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
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* Available under MIT license <https://lodash.com/license>
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*/
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var arrayFilter = require('lodash._arrayfilter'),
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baseCallback = require('lodash._basecallback'),
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baseFilter = require('lodash._basefilter'),
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baseMatches = require('lodash._basematches'),
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isArray = require('lodash.isarray');
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/**
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* Iterates over elements of `collection`, returning an array of all elements
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* `predicate` returns truthy for. The predicate is bound to `thisArg` and
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* invoked with three arguments: (value, index|key, collection).
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*
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* If a property name is provided for `predicate` the created `_.property`
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* style callback returns the property value of the given element.
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*
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* If a value is also provided for `thisArg` the created `_.matchesProperty`
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* style callback returns `true` for elements that have a matching property
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* value, else `false`.
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*
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* If an object is provided for `predicate` the created `_.matches` style
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* callback returns `true` for elements that have the properties of the given
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* object, else `false`.
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*
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* @static
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* @memberOf _
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* @alias select
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* @category Collection
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* @param {Array|Object|string} collection The collection to iterate over.
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* @param {Function|Object|string} [predicate=_.identity] The function invoked
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* per iteration.
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* @param {*} [thisArg] The `this` binding of `predicate`.
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* @returns {Array} Returns the new filtered array.
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* @example
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*
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* _.filter([4, 5, 6], function(n) {
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* return n % 2 == 0;
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* });
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* // => [4, 6]
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*
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* var users = [
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* { 'user': 'barney', 'age': 36, 'active': true },
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* { 'user': 'fred', 'age': 40, 'active': false }
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* ];
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*
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* // using the `_.matches` callback shorthand
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* _.pluck(_.filter(users, { 'age': 36, 'active': true }), 'user');
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* // => ['barney']
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*
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* // using the `_.matchesProperty` callback shorthand
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* _.pluck(_.filter(users, 'active', false), 'user');
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* // => ['fred']
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*
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* // using the `_.property` callback shorthand
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* _.pluck(_.filter(users, 'active'), 'user');
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* // => ['barney']
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*/
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function filter(collection, predicate, thisArg) {
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var func = isArray(collection) ? arrayFilter : baseFilter;
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predicate = baseCallback(predicate, thisArg, 3);
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return func(collection, predicate);
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}
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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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