ExtJS stands for Extended JavaScript. It is a JavaScript framework and a product of Sencha, based on YUI (Yahoo User Interface). It is basically a desktop application development platform with modern UI. This tutorial gives a complete understanding of Ext JS. This reference will take you through simple and practical approaches while learning Ext JS.

Audience

This tutorial has been prepared for beginners to help them understand the concepts of ExtJS to build dynamic web UI.

Prerequisites

For this tutorial, the reader should have prior knowledge of HTML, CSS, and JavaScript coding. It would be helpful if the reader knows the concepts of object-oriented programming and has a general idea on creating web applications.