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Bump to v3.0.0.
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112
lodash.some/index.js
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112
lodash.some/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 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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* A specialized version of `_.some` for arrays 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} array The array to iterate over.
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* @param {Function} predicate The function invoked per iteration.
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* @returns {boolean} Returns `true` if any element passes the predicate check,
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* else `false`.
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*/
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function arraySome(array, predicate) {
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var index = -1,
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length = array.length;
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while (++index < length) {
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if (predicate(array[index], index, array)) {
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return true;
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}
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}
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return false;
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}
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/**
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* The base implementation of `_.some` without support for callback shorthands
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* 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 any element passes the predicate check,
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* else `false`.
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*/
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function baseSome(collection, predicate) {
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var result;
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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 **any** element of `collection`.
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* The function returns as soon as it finds a passing value and does not iterate
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* over the entire collection. The predicate is bound to `thisArg` and invoked
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* 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 any
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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 any element passes the predicate check,
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* else `false`.
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* @example
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*
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* _.some([null, 0, 'yes', false], Boolean);
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* // => true
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*
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* var users = [
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* { 'user': 'barney', 'active': true },
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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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* _.some(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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* _.some(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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* _.some(users, 'active');
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* // => true
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*/
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function some(collection, predicate, thisArg) {
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var func = isArray(collection) ? arraySome : baseSome;
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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 = some;
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