State pattern with UI Code

By : Akshar Raaj

This blog tells how I used state pattern in my UI code, and explains state pattern with JavaScript and jQuery.

Disclaimer:

  • This blog will not talk much about benefits of State pattern as there is already a lot written about it. It only gives a practical example of using state pattern with UI code.
  • I am not much confident about difference between State pattern and Strategy pattern. Let's discuss if I misunderstood State pattern.

Use case:

  • I have a page with two input fields.
  • Page initially has one title field and one body field.
  • There is a '+Add' button ...

more info..
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Real time applications with Django, XMPP and StropheJS

By : Javed Khan

TL;DR:

Introduction:

PubSub is a XMPP extension which allows publishing and subscribing to events. This is useful when you instantly want to notify many clients about something interesting happening on your server.

Quoting the authors of PubSub specs:

The protocol enables XMPP entities to create nodes (topics) at a
pubsub service and publish information at those nodes; an event
notification (with or without payload) is then broadcasted to all ...

more info..
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