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102 lines
3.3 KiB
JavaScript
102 lines
3.3 KiB
JavaScript
/**
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* lodash 3.1.1 (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 1.8.2 <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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baseClone = require('lodash._baseclone'),
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baseMatches = require('lodash._basematches'),
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isIterateeCall = require('lodash._isiterateecall');
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/**
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* Checks if `value` is object-like.
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*
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* @private
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* @param {*} value The value to check.
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* @returns {boolean} Returns `true` if `value` is object-like, else `false`.
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*/
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function isObjectLike(value) {
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return !!value && typeof value == 'object';
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}
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/**
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* Creates a function that invokes `func` with the `this` binding of `thisArg`
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* and arguments of the created function. If `func` is a property name the
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* created callback returns the property value for a given element. If `func`
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* is an object the created callback returns `true` for elements that contain
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* the equivalent object properties, otherwise it returns `false`.
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*
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* @static
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* @memberOf _
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* @alias iteratee
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* @category Utility
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* @param {*} [func=_.identity] The value to convert to a callback.
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* @param {*} [thisArg] The `this` binding of `func`.
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* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
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* @returns {Function} Returns the callback.
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* @example
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*
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* var users = [
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* { 'user': 'barney', 'age': 36 },
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* { 'user': 'fred', 'age': 40 }
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* ];
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*
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* // wrap to create custom callback shorthands
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* _.callback = _.wrap(_.callback, function(callback, func, thisArg) {
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* var match = /^(.+?)__([gl]t)(.+)$/.exec(func);
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* if (!match) {
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* return callback(func, thisArg);
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* }
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* return function(object) {
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* return match[2] == 'gt'
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* ? object[match[1]] > match[3]
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* : object[match[1]] < match[3];
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* };
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* });
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*
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* _.filter(users, 'age__gt36');
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* // => [{ 'user': 'fred', 'age': 40 }]
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*/
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function callback(func, thisArg, guard) {
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if (guard && isIterateeCall(func, thisArg, guard)) {
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thisArg = null;
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}
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return isObjectLike(func)
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? matches(func)
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: baseCallback(func, thisArg);
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}
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/**
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* Creates a function which performs a deep comparison between a given object
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* and `source`, returning `true` if the given object has equivalent property
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* values, else `false`.
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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 Utility
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* @param {Object} source The object of property values to match.
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* @returns {Function} Returns the new function.
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* @example
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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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* _.filter(users, _.matches({ 'age': 40, 'active': false }));
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* // => [{ 'user': 'fred', 'age': 40, 'active': false }]
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*/
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function matches(source) {
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return baseMatches(baseClone(source, true));
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}
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module.exports = callback;
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