I've been building too. For example when i was learning about websocket (socketio library) http://codepen.io/techsin/full/DnIcp/ http://codepen.io/techsin/full/

I've been building too. For example when i was learning about websocket (socketio library) http://codepen.io/techsin/full/DnIcp/ http://codepen.io/techsin/full/DnIcp/ open in desktop or laptop, in two different ones or in two different tabs.