How to detect whether a string is in URL format using javascript?

Question

I think the question title seems to explain eveything. I want to detect whether a string is in URL format or not using javascript.

Any help appreciated.

Answer 1

try something like this:

function isUrl(s) {
    var regexp = /(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)? (\/|\/([\w#!:.?+=&%@!\-\/]))?/
    return regexp.test(s);
}