How can I strip the subdomain and .com/.org etc from a domain in Javascript?

Question

I want to get just the domain name(yahoo, google, stackoverflow) from the domain in javascript. How can I easily pull just this out and drop any subdomain and any extension?

See comment, I need it to work for any domain if possible.

Answer 1

"www.google.com".match(/\.?([^.]+)\.[^.]+.?$/)[1]

Answer 2

var domain = 'http://www.google.com/';
var parts = domain.toString().split('.'.toString());
parts[parts.length - 2];

Answer 3

See how to get domain name from URL