Book Image

Ext JS 4 Plugin and Extension Development

By : Abdullah Al Mohammad
Book Image

Ext JS 4 Plugin and Extension Development

By: Abdullah Al Mohammad

Overview of this book

Ext JS is a pure JavaScript application framework for building interactive web applications using techniques such as Ajax, DHTML, and DOM scripting. Ext JS 4 Plugin and Extension Development is a practical, step-by-step tutorial which guides you to learn and develop ExtJS plugins and extensions. There are a lot of examples with explanations and plenty of code provided to make it easier and quicker to pick up. Starting with the fundamentals, this book introduces some of the ExtJS library and community provided plugins and extensions and finishes with several hands-on, real world development examples. You will get a clear concept of ExtJS plugins and extensions and learn how to use them. You will also learn how to develop an ExtJS plugin and extension by going through several examples with code and screenshots. Ext JS 4 Plugin and Extension Development book will provide you with the knowledge to develop ExtJS plugins and extensions using real-life examples.
Table of Contents (16 chapters)
Ext JS 4 Plugin and Extension Development
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Chapter 1. Plugins and Extensions

This chapter introduces and defines the Ext JS plugins and extensions, the differences between them, and finally shows how to develop a plugin and an extension.

In this chapter we will cover:

  • What a plugin is

  • What an extension is

  • Differences between an extension and a plugin, and choosing the best option

  • Building an Ext JS plugin

  • Building an Ext JS extension

In this modern world of JavaScript, Ext JS is the best JavaScript framework that includes a vast collection of cross-browser utilities, UI widgets, charts, data object stores, and much more.

When developing an application, we mostly look for the best functionality support and components that offer it to the framework. But we usually face situations wherein the framework lacks the specific functionality or component that we need. Fortunately, Ext JS has a powerful class system that makes it easy to extend an existing functionality or component, or build new ones altogether.