It is useful for socket.io custom messaging
This method allows you set custom socket listener before starting or joining a room.
connection.socketCustomEvent = 'abcdef'; connection.openOrJoin('roomid', function() { connection.socket.on(connection.socketCustomEvent, function(message) { alert(message); }); connection.socket.emit(connection.socketCustomEvent, 'My userid is: ' + connection.userid); });
Alternative API: setCustomSocketEvent