javascript - RegExp Validate First http

Question

I need a regex for removing first http from my input box. how can i do this ?

For example if value of my input box is http://welcome.com it remove http:// and convert it to welcome.com

Answer 1

Do you really need regular expressions? indexOf() can do the job:

function CheckLink()
{
    var token = "http://";
    var link = "www.example.com";

    if(link.indexOf(token)!=0)
        link = token + link;

    return link;
}