taking off the http or https off a javascript string

Question

I have the following strings

http://example.com
https://example.com
http://www.example.com

how do i get rid of the http:// or

Answer 1

var str = "https://site.com";

str = str.substr( str.indexOf(':') + 3 );

Instead of .substr(), you could also use .slice() or .substring(). They'll all produce the same result in this situation.

str = str.slice( str.indexOf(':') + 3 );

str = str.substring( str.indexOf(':') + 3 );

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EDIT: It appears as though the requirements of the question have changed in a comment under another answer.

If there possibly isn't a http:// in the string, then do this:

var str = "site.com";

var index = str.indexOf('://');
if( index > -1 )
   str = str.substr( index + 3 );