Dojo JavaScript framework

Optimizely Content Management System (CMS) uses the Dojo Toolkit as the JavaScript framework on which client-side development is done.

The Dojo toolkit is a client-side framework for building rich internet applications hosted in a web browser. Dojo is an open-source framework that helps speed up the development of cross-platform rich internet applications by giving you a lot of features. Some key features include:

• Rich UI widgets using the Dijit widget system
• Asynchronous communication
• Class declaration and modular development
• Desktop and mobile support

The Dojo Toolkit consists of three main components:

• dojo – The core API of the framework and contains features for DOM manipulation, class declaration, event listening, message publishing and subscription, and asynchronous requests and processing.
• dijit – The user interface system built on top of the Dojo core. Its primary feature is the widget system which is used to manage and manipulate visual elements in a modular manner.
• dojox – A collection of sub-projects built on top of the Dojo core. This can be considered a repository of Dojo plugins or a testing ground for features that will, in the future, be part of the Dojo or Dijit namespace.

Dojo resources that help developers come up to speed with the framework:

• Tutorials – Dojo tutorials are separated into several topics, and each tutorial has a clearly labeled difficulty level and the version of Dojo for which it was written.
  • Arrays made easy
  • Create a custom widget
  • Classy JavaScript with dojo.declare
• API – The Dojo API documentation is generated from the code and lets you navigate the objects within the framework.