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Socket.IO - Coggle Diagram

- - - - socket.on(key, (data)=>{})
  - - - broadcast by others
      - emits by yourself/others
    - - socket.on(key, (data)=>{})
- - - - sending to everyone except the sender
    - - client
        socket.broadcast.emit(key, payload)
  - - - server
        sending to everyone including the sender
      - client
        sending data to the server
    - - client to server
        socket.emit(key, payload
      - server
        io.emit(key, payload)