node.js - io.sockets.emit 和广播有什么区别？

Question

io.sockets.emit 和 socket.broadcast.emit 有什么区别？除了发送它的套接字之外，广播是否只向所有人发出？

似乎它们可以互换使用:

io.sockets.on('connection', function (socket) {
  //these should do the same thing  
  io.sockets.emit('this', { receivers: 'everyone'});

  socket.broadcast.emit('this', { receivers: 'everyone but socket'}); //emits to everyone but socket
  socket.emit('this', { receivers: 'socket'}); //emits to socket
});

Answer 1

io.sockets.emit 将发送给所有客户端

socket.broadcast.emit 会将消息发送给除了新创建的连接之外的所有其他客户端

This Socket.IO Wiki post will help everyone reading this question:

最近的备忘单也可以在这里查看:

https://socket.io/docs/v4/emit-cheatsheet