jQuery detect and validate an URL

Question

Let\'s imagine I have this text:

Hi, my name is Pablo and my home page is http://zad0xsis.net

Answer 1

You could use a regex:

var s = 'Hi, my name is Pablo and my home page is http://zad0xsis.net';
var exp = /(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig;
s = s.replace(exp,"$1"); 
alert(s);

Live demo.