js to obtain the domain name: location.origin

domain name:

location.origin

 

The main commonly used codes:

Host, domain name:

location.host

Anchor:

location.hash

domain name:

location.origin

Request path:

location.pathname

port:

location.port

protocol:

location.protocol

Request parameters in url:

location.search

 

 

 

 

The technique of parsing the root domain name of a URL in javascript (if you don't do this, it seems that you can only write regular expressions to get the root domain name):

var a=document.createElement('a'); 

a.href='http://music.baidu.com/search?fr=ps&key=12306&ie=utf-8&ie=utf-8'; 

alert(a.host);

 

 

Demo presentation:

<a href='http://baidu.com' οnclick='alert(this.host+" | "+this.origin)'>百度</a>