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Bump to v3.0.0.
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89
lodash.every/index.js
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89
lodash.every/index.js
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/**
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* lodash 3.0.0 (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 arrayEvery = require('lodash._arrayevery'),
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baseCallback = require('lodash._basecallback'),
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baseEach = require('lodash._baseeach'),
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isArray = require('lodash.isarray');
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/**
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* The base implementation of `_.every` without support for callback
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* shorthands or `this` binding.
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*
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* @private
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* @param {Array|Object|string} collection The collection to iterate over.
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* @param {Function} predicate The function invoked per iteration.
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* @returns {boolean} Returns `true` if all elements pass the predicate check,
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* else `false`
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*/
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function baseEvery(collection, predicate) {
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var result = true;
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baseEach(collection, function(value, index, collection) {
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result = !!predicate(value, index, collection);
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return result;
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});
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return result;
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}
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/**
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* Checks if `predicate` returns truthy for **all** elements of `collection`.
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* The predicate is bound to `thisArg` and invoked with three arguments;
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* (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 all
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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 {boolean} Returns `true` if all elements pass the predicate check,
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* else `false`.
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* @example
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*
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* _.every([true, 1, null, 'yes'], Boolean);
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* // => false
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*
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* var users = [
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* { 'user': 'barney', 'active': false },
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* { 'user': 'fred', 'active': false }
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* ];
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*
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* // using the `_.matches` callback shorthand
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* _.every(users, { 'user': 'barney', 'active': false });
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* // => false
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*
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* // using the `_.matchesProperty` callback shorthand
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* _.every(users, 'active', false);
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* // => true
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*
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* // using the `_.property` callback shorthand
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* _.every(users, 'active');
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* // => false
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*/
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function every(collection, predicate, thisArg) {
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var func = isArray(collection) ? arrayEvery : baseEvery;
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if (typeof predicate != 'function' || typeof thisArg != 'undefined') {
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predicate = baseCallback(predicate, thisArg, 3);
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}
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return func(collection, predicate);
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}
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module.exports = every;
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