A hands-on development of several Ext JS plugins and extensions Overview Easy-to-follow examples on ExtJS plugins and extensions Step-by-step instructions on developing ExtJS plugins and extensions Provides a walkthrough of several useful ExtJS libraries and communities In Detail 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. What you will learn from this book Explore ExtJS plugins and extensions and the differences between them Usage of ExtJS plugins and extensions Follow along with code and screenshots to learn how to develop ExtJS plugins and extensions Discover the ExtJS library and community provided extensions Experience a step-by-step, hands-on development of several real-world ExtJS plugins and extensions Approach This is a step-by-step tutorial that practically teaches Ext JS plugin and extension development through sample examples that increase in complexity. Who this book is written for Ext JS 4 Plugin and Extension Development is ideal for experienced ExtJS developers who want to expand their knowledge in developing plugins and extensions. This book is also for those developers who are new to ExtJS development, with at least some knowledge on ExtJS basics.