socket.io get rooms which socket is currently in

Question

Is it possible to get rooms which socket is currently in, without calling

io.sockets.clients(roomName)

for every room name and looking for

Answer 1

Version 1.7.3, socket.rooms contains socket.id, so remove it and get the list of rooms:

Object.keys(socket.rooms).filter(item => item!=socket.id);

In other version, you can print the socket and find the rooms.