1. 格式化  format

function format(string) {    var args = arguments;    var pattern = new RegExp(“%([1-" + arguments.length + "])”, ”g”);    return String(string).replace(pattern, function(match, index) {      return args[index];    });  };//调用 format(“And the %1 want to know whose %2 you %3″, ”papers”, ”shirt”, ”wear”);//上面的代码将返回：And the papers want to know whose shirt you wear"

 2. 获取GUID

function guidGenerator() {    var S4 = function() {       return (((1+Math.random())*0x10000)|0).toString(16).substring(1);    };    return (S4()+S4()+"-"+S4()+"-"+S4()+"-"+S4()+"-"+S4()+S4()+S4());}

 

 

3.getQuerystring

JS={};JS.getQueryString = function (name) {     var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");     var r = window.location.search.substr(1).match(reg);     if (r != null) return unescape(r[2]); return null; }