We are going to write more JavaScript applications that use the Canvas and WebSockets technology.

We are goint to introduce WebSockets as a tool to make real-time apps, using JavaScript

Coming from the HTML 5 JavaScript API, WebSockets gives us the power for making bi-directional communication between the client and the server, without having the restrictions of HTTP that is - the client has to make a request in order for the server to respond.

Using WebSockets, the client can push information to the server and the server can push information to the client at any given time.

• A good starting material for WebSockets is this - http://www.html5rocks.com/en/tutorials/websockets/basics/
• MDN Reference for WebSockets has useful information too - https://developer.mozilla.org/en-US/docs/WebSockets
• This 2 minute video from Ericsson Labs shows example usage of WebSockets - https://www.youtube.com/watch?v=Z897fkPn7Rw
• To work with WebSockets, we are going to use the Socket.IO library