题库地址:http://javascript-puzzlers.herokuapp.com/ 1. 这段代码的执行结果? var a = Function.length, b = new Function().length a === b 这段代码的执行结果? 答案:false 解析:首先new在函数带......
由于本文篇幅较长,故将目录整理如下 什么是Map 维基百科的定义 In computer science, an associative array, map, symbol table, or dictionary is an abstract data type composed of a collection of (key, v......