GUID for Javascript

This morning, I needed to be able to generate a GUID in Javascript. Like any developer, I hit up the interwebs for some help, and landed here. (Gotta love Stack Overflow.)

Anyway, I ended up going with this implementation, submitted by broofa.

function newGuid(){
    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
        var r = Math.random()*16|0, v = c == 'x' ? r : (r&0x3|0x8);
        return v.toString(16);
    });
}

It’s exactly what I was looking for, all nice and tidy. Happy coding!