Question

I’m using Socket.IO with Node.js.

I have an object socket which looks like this:

SocketNamespace
    $events: Object
    ...
    socket: Socket

So then If I look at Socket (i.e. socket.socket)

Socket
    $events: Object
    ...
    sessionid: "1549988601982716407"

Again, works fine.

But if I just want to return sessionid, so I use socket.socket.sessionid I get…

undefined

If I do a typeof for socket.socket I get object, but for socket.socket.sessionid, I just get undefined.

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Edit: here’s my code:

Browser:

$(function() {

    $.getScript('http://localhost:8080/socket.io/socket.io.js', function() {
        var socket = io.connect('http://localhost:8080');
        console.log(socket.socket.sessionid);
    });

});

App:

var io = require('socket.io').listen(8080);

io.sockets.on('connection', function (socket) {

});

---

Edit 2: More data:

Instead of the one log, I’ve replace with this;

console.log(typeof(socket));
console.log(typeof(socket.socket));
console.log(typeof(socket.socket.sessionid));

Returns:

object
object
undefined

Expected:

object
object
string

---

Edit 3:* Screenshot

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Edit 4

This, oddly, works.

var x;
for (x in socket.socket)
{
    if (x == 'sessionid') {
        console.log(socket.socket[x]);
    }
}

Answer 1

I can’t believe this.

socket.socket['sessionid']

That worked. Thanks all.