Ext JS 4 is, by far, the most sophisticated JavaScript library available and provides an amazing set of widgets for almost all practical design concerns. It does everything we could possibly want in order to develop complex, cross-browser compatible applications that require a high degree of user interaction. In this chapter, we will:
Learn about core Ext JS 4 MVC concepts
Explore practical project design and development conventions
Install the Ext JS 4 development framework and introduce Sencha Cmd
Generate an Ext JS 4 application skeleton for the 3T application
Ext JS has come a long way since starting out as an extension to the Yahoo User Interface (YUI) library. Each new version has been a significant improvement on the previous one and Ext JS 4 is no exception. Those new to Ext JS will appreciate the elegant framework design and consistent API, while those transitioning from Ext JS 3 will appreciate the improvements in many areas, including the introduction...