小编pe-*_*ean的帖子

你怎么能检测到你在 socket.io 连接上收到了一条你没有处理程序的消息？

例子：

// client
socket.emit('test', 'message');

// server
io.on('connection', function (socket) {
  console.log('connection received...');

  // logs all messages
  socket.conn.on('message', function(data) {
    console.log('this gets every message.');
    console.log('how do I get just the ones without explicit handlers?');
  });

  socket.on('other' function(data) {
    console.log('expected message');
  });
}