Socket.io，如何知道哪个路由套接字断开连接？

Question

我正在写一个多人游戏。我想检查玩家是否离开了游戏室，这样他们就不会开始游戏，除非有两个人。 服务器

         socket.on('disconnect', () => {
         if (rooms.find('ownerName', nickname)) {
             rooms.delete(nickname);
        }
         console.log(nickname, 'Disconnected!')
         // Emit an event when a member leaves a room
        rooms.array().forEach(o => {
            for (let p of [o.players.array()]) {
                console.log(p.nickname === nickname)
                if (p[0].nickname === nickname) {
                    let roomInstance = rooms.get(o.ownerName);

                    if (roomInstance) {
                        roomInstance.players.delete(p[0].nickname);
                        const playersCount = roomInstance.players.size;
                        console.log('Emitting ' + `room player left ${o.ownerName}`)
                        return io.sockets.emit(`room player left ${o.ownerName}`, p.nickname, playersCount);
                    }

                }
            }

        });

        lobbyMembers.delete(nickname);
    });

好的，当大厅路线的成员正在断开连接时，会发生断开连接事件 大堂前端：

    <script type="text/javascript">
    $(document).ready(function() {
       const socket = io.connect();
        let nickname = "<%= nickname %>"
        socket.emit('new lobby member', nickname)

        //TODO: If owner don't show button
        $('#newRoomBtn').click(function(event) {
            $('#newRoomBtn').fadeOut('fast');
            socket.emit('new room', nickname);
        });

        socket.on('new room', owner => {
            $("#gamesTable tr:last")
                .after("<tr><th><%= rooms.size + 1 %></th><th>" + owner.nickname + `</th><th><a class="button" href="game/${owner.nickname}">join</a></th>`);
        });
    });
</script>

我想检查玩家是否正在与Room路线断开连接 房间前端：

    <script type="text/javascript">
    $(document).ready(function() {
       const socket = io.connect();

       let newRoomPlayerEvent = 'new room player <%= room.owner.nickname %>';
       let roomPlayerLeft = 'room player left <%= room.owner.nickname %>';

        const room = <%- JSON.stringify(room) %>
       socket.emit('new room player', room, "<%= nickname %>")

       socket.on(newRoomPlayerEvent, function(player, playersCount) {
            const Heading = playersCount >= 2 ? "Press ready" : `Waiting for an opponent! (${playersCount})`
            if (playersCount >= 2) $('#readyButton').fadeIn('slow');
            $('.headingRoom').html(`<h2 class='headingRoom centered is-size-3'>${Heading}</h2>`);
        });

        socket.on(roomPlayerLeft, function(player, playersCount) {
            console.log(player)
            const Heading = playersCount >= 2 ? "Press ready" : `Waiting for an opponent! (${playersCount})`
            if (playersCount < 2) $('#readyButton').fadeOut('slow');
            if (playersCount <= 2) $('#readyButton').fadeIn('slow');
            $('.headingRoom').html(`<h2 class='headingRoom centered is-size-3'>${Heading}</h2>`);
        });

        $('#readyButton').click(function() {
            console.log(<%- JSON.stringify([...players.entries()].reduce((acc, val) => ((acc[val[0]] = val[1]), acc), {})) %>)
        })
    });
</script>