js获取当前地址信息

var url = window.location.href;  //获取当前窗口的Url;  结果：http://localhost:61768/Home/Index?id=2&age=18
var host = window.location.host; //获取当前窗口的主机名;   结果：localhost:61768
var port = window.location.port;  //获取当前窗口的端口; 结果：61768
var pathname = window.location.pathname; //获取当前窗口的路径 ; 结果：/Home/Index
var URL = document.URL;          //获取当前文档的Url；结果：http://localhost:61768/Home/Index?id=2&age=18
var search = window.location.search;   //获取参数；结果：?id=2&age=18

var protocol =  window.location.protocol;   //获的是当前地址的协议    结果：http: