|  | var Symbol = require('./_Symbol'), | 
|  | isArguments = require('./isArguments'), | 
|  | isArray = require('./isArray'); | 
|  |  | 
|  | /** Built-in value references. */ | 
|  | var spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined; | 
|  |  | 
|  | /** | 
|  | * Checks if `value` is a flattenable `arguments` object or array. | 
|  | * | 
|  | * @private | 
|  | * @param {*} value The value to check. | 
|  | * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. | 
|  | */ | 
|  | function isFlattenable(value) { | 
|  | return isArray(value) || isArguments(value) || | 
|  | !!(spreadableSymbol && value && value[spreadableSymbol]); | 
|  | } | 
|  |  | 
|  | module.exports = isFlattenable; |