EXT JS 2.1 Overview

There are several options available to you when downloading the library. Here is a list of what you can expect to find in a complete package:

• All adapters (used in conjunction with other libraries)
  
• The core library files
  
• All locales (86 of them in total)
  
• All data helpers, state management and drag-drop interaction helpers 
  
• All 13 utilities and all 35 widgets
  
• Documentation and example files.

This download package weighs in at 6.16Mb.

Alternatively, a download builder is also provided on the downloads page of the EXT JS site. This feature allows you to create your very own download package consisting of just the parts of the library that you need for your current project.

The download builder is an excellent resource that is itself built on the EXT JS foundation. It is very easy to use and lists any given dependencies for any given library component. It also clearly lists any optional components which you may find useful. On the whole, it is an easy to use and clear application.

Code minimization is a big thing these days; most of the developers I know take the time to optimize their code for quick download and efficient usage, and many of today's most popular libraries provide source code in minimized form. EXT JS is no exception and provides all of its core components, utilities and widgets with minimized supporting JavaScript files.