Javascr ipt一种直译式脚本语言，是一种动态类型、弱类型、基于原型的语言，内置支持类型。它的解释器被称为Javascr ipt引擎，为浏览器的一部分，广泛用于客户端的脚本语言。(Javascr ipt a literal scr ipting language, a dynamic type, a weak type, a prototype based language, and a built-in support type. Its interpreter is called th