관리-도구
편집 파일: isEqual.js
var baseIsEqual = require('../internal/baseIsEqual'), bindCallback = require('../internal/bindCallback'); /** * Performs a deep comparison between two values to determine if they are * equivalent. If `customizer` is provided it's invoked to compare values. * If `customizer` returns `undefined` comparisons are handled by the method * instead. The `customizer` is bound to `thisArg` and invoked with up to * three arguments: (value, other [, index|key]). * * **Note:** This method supports comparing arrays, booleans, `Date` objects, * numbers, `Object` objects, regexes, and strings. Objects are compared by * their own, not inherited, enumerable properties. Functions and DOM nodes * are **not** supported. Provide a customizer function to extend support * for comparing other values. * * @static * @memberOf _ * @alias eq * @category Lang * @param {*} value The value to compare. * @param {*} other The other value to compare. * @param {Function} [customizer] The function to customize value comparisons. * @param {*} [thisArg] The `this` binding of `customizer`. * @returns {boolean} Returns `true` if the values are equivalent, else `false`. * @example * * var object = { 'user': 'fred' }; * var other = { 'user': 'fred' }; * * object == other; * // => false * * _.isEqual(object, other); * // => true * * // using a customizer callback * var array = ['hello', 'goodbye']; * var other = ['hi', 'goodbye']; * * _.isEqual(array, other, function(value, other) { * if (_.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/)) { * return true; * } * }); * // => true */ function isEqual(value, other, customizer, thisArg) { customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined; var result = customizer ? customizer(value, other) : undefined; return result === undefined ? baseIsEqual(value, other, customizer) : !!result; } module.exports = isEqual;