Finally I have founded my solution:
function validateURL(url)
{
var re = /^(https?):\/\/(www\.)?[a-z0-9\-\.]+\.[[a-z0-9\-\.\/]{2,}]*$/;
if (!re.test(url))
{
return false;
}
else
{
return true;
}
}
this function return true if your url contain these:
part 1. https or http
part 2. www or not (means optional).
Below image exploring in more depth.
I am wrong?