Sencha Ext JS 4 Overview

Ext JS 4 is a major step forward for web application development. Building on Ext JS 3.3, our latest release adds over 350 new APIs, 50 new classes, and 65% more documentation. Ext JS 4 also brings an entirely new data package that enables developers to use a model-view-controller architecture when building their app. The new MVC enables apps to leverage features like Infinite Scrolling a Grid to build an entirely new level of interactivity in to web apps.

Rich, Modern UI Widgets

Ext JS offers an extraordinary range of user interface widgets. High performance scalable grids, trees, menus, and more. If you need it, we've probably already built it. And even if it's not in the core library, you're almost certain to find it in the thousands of user extensions from our million-strong Sencha community.

Sencha Cmd works with Ext JS

Sencha Cmd is the cornerstone to build your Sencha application. From scaffolding a new project, to minifying and deploying your application to production, Sencha Cmd provides a full set of lifecycle management features to compliment your Sencha project. With a rich command line syntax and Ant integration, Cmd is perfect to integrate into your enterprise build environment or use standalone for your application.

Sencha Cmd Documentation
Sencha Cmd Download

Ext Direct

Ext Direct is a platform and language agnostic technology to remote server-side methods to the client-side. Ext Direct allows for seamless communication between the client-side of an Ext JS application and all popular server platforms. Find out more about Ext Direct

Plugin-free Charting

No plugins, no problem. Don’t let proprietary browser plugins get in the way of delivering eye-catching charts. Ext JS 4 delivers the most advanced charting and graphing capabilities of any JavaScript framework, delivering pixel perfect visuals on any browser on any operating system. Leveraging SVG and VML, Ext JS 4’s new charting package lets developers design and program their graphs once and never have to worry if they’ll work.

Documentation, Training and Support

Our learning resources and API documentation are comprehensive, detailed and regularly maintained. We also offer several options for professional training at multiple levels including beginner and advanced. We also offer professional support with guaranteed response times and a full ticketing system.

Clean Component Model

A core strength of Ext JS is its component design. You can easily extend the default components to meet your needs, and extensions will be encapsulated within just those components. As a result, your development teams can create even the largest applications without stepping on each other’s code.

Cross Platform Browser Compatibility

Ext JS 4 lets developers deliver on an incredible variety of browsers and on more operating systems using the same code — over ten years of browsers in one release. On modern browsers, Ext JS 4 utilizes HTML5 features and falls back to alternatives on older browsers. Whether you’re using Ext JS’ built-in UI components, using the new Charting package, or theming your application, Ext JS 4 makes it easy to build an app that gives you the power of the web regardless of what browser your customer uses.

Ext JS supports all major web browsers including:

• Internet Explorer 6+
• Firefox 3.6+ (PC, Mac)
• Safari 4+
• Chrome 10+
• Opera 11+ (PC, Mac)