AJAX from Scratch

The AJAX from Scratch article series describes fundamental techniques needed to develop AJAX Rich Internet Applications in JavaScript from scratch. Each article focuses on a particular (usually little-covered) aspect of developing browser-side functionality without the use of commercial or server-based frameworks. The techniques described are additionally illustrated in Gravey, a small, but real-world, stand-alone, server-agnostic, JavaScript framework for AJAX and RIAs.

• Examples for Implementing MVC GUIs in JavaScript,
  Using Fat Client techniques in Web Applications.
  TBD 2007, Gamelan.com / Developer.com
  With the increasingly popular AJAX and RIA paradigms, the impetus to build complicated dynamic user interfaces is driving developers to use the same design patterns (e.g. Model-View-Controller) formerly tied to "fat" GUI clients.
  
  
• Examples for Implementing "Real" Classes in JavaScript,
  And why your JavaScript classes probably aren't.
  Feb 2007, Gamelan.com / Developer.com
  With the increasingly popular AJAX and RIA paradigms, the impetus to build complicated dynamic user interfaces is driving developers to use the same design patterns (e.g. Model-View-Controller) formerly tied to "fat" GUI clients. All of these design patterns expect the consistency of class-based objects as provided in languages like C++ and Java. However, since JavaScript does not use classes, Rich Internet Applications must emulate their functionality. This article describes one such emulation technique and demonstrates why many commonly used techniques fall short.
  
• In part one, an implementation was presented to emulate Java-like classes in JavaScript. In this followup, that implementation is extended to enable multiple inheritance. Both Java-like multiple Interface inheritance, and multiple Class inheritance as found in other object oriented languages, are made possible even though JavaScript supports only single Prototype inheritance. A pragmatic approach is taken to resolve ambiguities that results in simple usable code.
  
  
• Examples for Implementing Mutual Exclusion in JavaScript,
  Learn how to keep your XMLHttpRequests from colliding with your rich Internet applications
  March 2006, Gamelan.com / Developer.com
  With the increasingly popular AJAX paradigm, a browser page can make requests for server data "in the background" while the user interface continues to be active "in the foreground" causing problems by accessing common data simultaneously. The classic solutions to this concurrent programming problem are not supplied by JavaScript. This article describes an implementation of a mutual exclusion mechanism that works around the limitations of JavaScript.