|  | /** | 
|  | * Performs a | 
|  | * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) | 
|  | * comparison between two values to determine if they are equivalent. | 
|  | * | 
|  | * @static | 
|  | * @memberOf _ | 
|  | * @since 4.0.0 | 
|  | * @category Lang | 
|  | * @param {*} value The value to compare. | 
|  | * @param {*} other The other value to compare. | 
|  | * @returns {boolean} Returns `true` if the values are equivalent, else `false`. | 
|  | * @example | 
|  | * | 
|  | * var object = { 'a': 1 }; | 
|  | * var other = { 'a': 1 }; | 
|  | * | 
|  | * _.eq(object, object); | 
|  | * // => true | 
|  | * | 
|  | * _.eq(object, other); | 
|  | * // => false | 
|  | * | 
|  | * _.eq('a', 'a'); | 
|  | * // => true | 
|  | * | 
|  | * _.eq('a', Object('a')); | 
|  | * // => false | 
|  | * | 
|  | * _.eq(NaN, NaN); | 
|  | * // => true | 
|  | */ | 
|  | function eq(value, other) { | 
|  | return value === other || (value !== value && other !== other); | 
|  | } | 
|  |  | 
|  | module.exports = eq; |