1. Node.js

2. Set of libraries on top of V8

3. Evented I/O e.g. ioOperation(args, callbackFunction );

5. No threads :) More scalable Code in js Benefits

6. WebSocket

7. Full duplex single socket connection

8. Polling Client Server Something new ? NO !!! Something new ? NO !!! Something new ? Yeah! Here it is !

9. Long-Polling = polling with time factor

10. Benefits Bi-directional communication Full duplex Less overhead as compared to HTTP/AJAX

11. Sanwaad

12. The real-time chat server

13. Design Server: app.js – router sanwaad.js – controller index.jade – view

14. Design... Client: landing HTML page lib.css – cascaded stylesheet lib.js – client side java script jquery.js – a js library to write less and do more

15. Design... Testing: qunit.js – javascript test suite utest.js – unit tests testRunner.html – Test Runner

16. Demo

17. Questions ?