socket.io join clients from two rooms

Question

socket.io join clients from two rooms

I want to join clients from two rooms into a new room. Is there a way to achieve this? Like:

io.sockets.clients(room1 , room2).join(room 3);

javascript
node.js
chat
socket.io

Answer 1

var rooms = ['room1', 'room2', room3]; // list of rooms

socket.join('room1'); // assign the room on connection

var clients = io.sockets.clients(rooms[0]); // list of all clients in room1

for (client in clients)
    {
        clients[client].leave(rooms[0]); // leave room1
        clients[client].join(rooms[2]); // join room3
    }

Repeat the same for room2. Hope this helps

Answer 2

For people using socket.IO versions 1.0 or greater this may not work. Try the following code for the same.

var clients = io.sockets.adapter.rooms['Current Room Name'];

for (var clientId in clients ) {

     //this is the socket of each client in the room.
     var clientSocket = io.sockets.connected[clientId];

     //If you want, you can remove the client form the first(current) room
     //clientSocket.leave('current room');

     clientSocket.join('new room to join');   

}