Socket.IO handling disconnect event

Question

Cant handle this disconnect event, dont know why socket its not send to the client / client doesnt response!

Server

io.sockets.on(\'connection\', fun         


        

Answer 1

Create a Map or a Set, and using "on connection" event set to it each connected socket, in reverse "once disconnect" event delete that socket from the Map we created earlier

import * as Server from 'socket.io';

const io = Server();
io.listen(3000);

const connections = new Set();

io.on('connection', function (s) {

  connections.add(s);

  s.once('disconnect', function () {
    connections.delete(s);
  });

});