Socket.io Connected User Count

Question

I finally got socket.io to work properly, but I have encountered a strange problem.

I am not sure if this is the best way, but I am using:

io.sockets.cli         


        

Answer 1

Why use an (implicit global) variable when you could always filter the array, that is returned by calling the clients() method.

function filterNullValues (i) {
  return (i!=null);
}
io.sockets.clients().filter(filterNullValues).length;