1var url = window.location.origin;

1var base_url = window.location.origin;
2
3var host = window.location.host;
4
5var pathArray = window.location.pathname.split( '/' );
6

1console.log(window.location.origin);

1suppose that you have a page with this address: http://sub.domain.com/virtualPath/page.htm. use the following in page code to achive those results:
2
3window.location.host : you'll get sub.domain.com:8080 or sub.domain.com:80
4window.location.hostname : you'll get sub.domain.com
5window.location.protocol : you'll get http:
6window.location.port : you'll get 8080 or 80
7window.location.pathname : you'll get /virtualPath
8window.location.origin : you'll get http://sub.domain.com *****