Ext JS 4 is a JavaScript framework used to build rich internet applications. The core strength of Ext JS 4 is in building a complete application in a single page using component-based, modularized, and proficient JavaScript code that can run seamlessly in all major browsers.
Practical Ext JS 4is written for developers, and has up-to-date coverage of all of the features of Ext JS 4.2. The objective of the book is to get you up and running using the Ext JS 4 framework for your projects as quickly as possible. In the book, you will rapidly be brought up to speed on some of the advanced features of JavaScript, such as mixins, closures, and hoisting, and how you can take advantage of these combined with the power of Ext JS to create powerful applications.
