在连接时从客户端发出socket.io消息

Question

I have this code running from my javascript client side.

var num = Math.floor((Math.random() * 1000 + 1));

var socket = io();

io.on('connection', function(socket){
    socket.emit('random_number',num);
});

the 'random_number' never makes it to the server. A few second later I can emit messages successfully and they reach the server.... but just not the initial message upon connection.

What am I doing wrong?

Answer 1

io.on('connection', function(socket){
    socket.emit('random_number',num);
});

The 'connection' event is in the server API, for the client it's 'connect' :

io.on('connect', function(socket){
    socket.emit('random_number',num);
});