CODEWITHSUNDEEP
javascriptregex
Fellow Stranger
Fellow Stranger

Reputation: 34013

Add regex rule to remove "www." on existing expression

With the help from this answer I'm getting clean domain names from urls in strings, like the following:

url = "http://www.stackoverflow.com/questions/ask"  
var matches = url.match(/^https?\:\/\/([^\/?#]+)(?:[\/?#]|$)/i);  
return matches ? matches[1] : url;
>> "www.stackoverflow.com"

I would like to remove the subdomain "www" (and the following dot) as well though, if existing. How would I change the above expression to accomplish this?

Upvotes: 1

Views: 1822

Answers (2)

anubhava
anubhava

Reputation: 785098

You can match optional www. after http://:

var matches = url.match(/^https?\:\/\/(?:www\.)?([^\/?#]+)(?:[\/?#]|$)/i);
//=> ["http://www.stackoverflow.com/", "stackoverflow.com"]

Upvotes: 2

melc
melc

Reputation: 11671

You can try,

url = "http://www.stackoverflow.com/questions/ask"  
var matches = url.match(/^https?\:\/\/(www\.)?([^\/?#]+)(?:[\/?#]|$)/i);  
return matches ? matches[2] : url;

to support url addresses with and without www.

Upvotes: 0

Related Questions