https://www.cnblogs.com/haiyan123/p/7594046.html 在JavaScript中除了null和undefined以外其他的数据类型都被定义成了对象,也可以用创建对象的方法定义变量,String.Math.Array.Date.RegExp都是JavaScript中重要的内置对象,在JavaScript程序大多数功能都是基于对象实现的 //利用数字对象获取可表示最大数 var a = Number.MAX_VALUE; console.log(a); //…
BOM(Browser Object Model): feature: 1.BOM has no relevant standards. 2.The fundamental object of BOM is window. explain: We can know that BOM is closely related to the browser from it's name. Many things in the browser can be controlled through JavaS…