What is the difference between io.to and io.in?

Question

Socket.io

What is the difference between io.to('room') and io.in('room') in both cases, sending goes to all addresses in the room (including the sender). Only in is not present in the socket object

Answer 1

well, apparently in the dock socket.io lies.
Because for the Socket object in/to are identical
And for the server there are no separate implementations of these methods at all, if I understand correctly that io.to/in and other methods are directly thrown into the main channel, /i.e. again a Socket object.