Get the domain part of an URL string?

Question

I have an NSString with an URL, in this way:

http://someurl.com/something

How would I get someurl.com only? I\'ve already trie

Answer 1

Objective-C

NSString* urlString = @"http://someurl.com/something";
NSURL* url = [NSURL URLWithString:urlString];
NSString* domain = [url host];

Swift 2

var urlString = "http://someurl.com/something"
var url = NSURL(string: urlString)
var domain = url?.host

Swift 3+

var urlString = "http://someurl.com/something"
var url = URL(string: urlString)
var domain = url?.host