Socket. IO实时聊天

Question

我正在用插座找一个指定的房间。io，但其给出的错误为“未定义房间”。下面是我的代码。谁能帮忙吗？或者解释什么问题

io.on('connection', (socket) => {

socket.on('join', ({name, room}, callback ) => {
    console.log(name, room);
    const {error, user} = addUser({id: socket.id, name, room});
    if(error) return callback(error);

    //greeting message for user when joins room
    socket.emit('message', {user: 'admin', text: `${user.name}, welcome to the room ${user.room}`});
    //greet message to everyone in room that user has joined
    socket.broadcast.to(user.room).emit('message', {user: 'admin', text : `${user.name} has joined.`});

    socket.join(user.room);//puts user in room
    callback();

});
socket.on('sendMessage', (message, callback) => {

    const user = getUser(socket.id);// get user by id 

    io.to(user.room).emit('message', {user: user.name, text: message});
    callback();
});


socket.on('disconnect', () => {
    console.log('User have left!!');
})

}）；

Answer 1

你的问题来自客户端。服务器没问题。前端没有发送用户输入的房间。过来看。