One thing I wanted to mention was that using your recommended approach of setTimeout(func, 0); does not work properly.

The ‘i’ variable gets closured properly but in the context of setTimeout function, it is still being changed by the for loop. So essentially all the callbacks throw errors as ‘i’ is still changing and will most likely be equal to listeners.length.

We remedied this by wrapping the setTimeout function argument in its own auto invoked function as declared below.

    setTimeout(function(x){
        return(function(){
            // code here using x
        });
    }(i), 0);

Cheers,

Brent.