I would like to know what are the differences between

var socket = io();

and

var socket = io.connect();

using socket.io in my script (client side)

Thank you!

I would like to know what are the differences between

var socket = io();

and

var socket = io.connect();

using socket.io in my script (client side)

Thank you!

• javascript
• node.js
• socket.io
• socket.io-1.0

1 Answer 1

There is no difference.

If you look at the source code for the SocketIO client, io is declared as follows:

module.exports = exports = lookup;

And io.connect() is declared in the same way:

exports.connect = lookup;

They both refer to the same (internal) function lookup.

I think that io.connect exists to make the client backward patible with older versions of SocketIO.