Overview of Ext JS 4
Let’s get started with Ext JS 4. In this chapter you’ll learn Ext JS 4 from scratch. We’ll install it, configure it, and churn out some code to get a feel for the API.
Downloading Ext JS 4
Getting started with Ext JS 4 is really easy. You can download the latest stable version of Ext JS 4 from http://www.sencha.com/products/extjs/download/ . You have two options that you can choose for downloading.