window.location

Question

if I have a hostname as:

http://sample.somedomain.com

and in Javascript I do window.location.hostname would I get "somedomain.com" or "sample.somedomain.com" ?

If not, how would I be able to get sample.somedomain.com?

Answer 1

Yes, window.location.hostname will give you subdomains as well. If this isn't working, or isn't supported by some other browser, you could quite easily parse for it:

// window.location.href == "http://sample.somedomain.com/somedir/somepage.html"
var domain = /:\/\/([^\/]+)/.exec(window.location.href)[1];

Answer 2

First of all, it's window.location, not document.location (document.location works in some browsers but it is not standard)

And yes, location.hostname will return the entire domain name, including any subdomains

Read more here

http://www.w3schools.com/HTMLDOM/dom_obj_location.asp

Answer 3

Yes alert(window.location.hostname) will include subdomains like 'www' and 'sample'.

Answer 4

How about this snippet. It might help:

var a = new String(window.location);
a = a.replace('http://','');
a = a.substring(0, a.indexOf('/'));
alert(a);