| /** Used for built-in method references. */ | 
 | var arrayProto = Array.prototype; | 
 |  | 
 | /* Built-in method references for those with the same name as other `lodash` methods. */ | 
 | var nativeJoin = arrayProto.join; | 
 |  | 
 | /** | 
 |  * Converts all elements in `array` into a string separated by `separator`. | 
 |  * | 
 |  * @static | 
 |  * @memberOf _ | 
 |  * @since 4.0.0 | 
 |  * @category Array | 
 |  * @param {Array} array The array to convert. | 
 |  * @param {string} [separator=','] The element separator. | 
 |  * @returns {string} Returns the joined string. | 
 |  * @example | 
 |  * | 
 |  * _.join(['a', 'b', 'c'], '~'); | 
 |  * // => 'a~b~c' | 
 |  */ | 
 | function join(array, separator) { | 
 |   return array == null ? '' : nativeJoin.call(array, separator); | 
 | } | 
 |  | 
 | module.exports = join; |