Ext JS 4.2.0 Sencha Docs

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: The latest stable build (v0.15.494) is approximately 6.53 GB , indicating a massive amount of new high-quality renders and animations.

Last updated: May 2026. Links and version numbers verified at the time of writing.

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To minimize the risks associated with online content searching and downloading, users should follow best practices:

If a Windows Defender SmartScreen warning occurs, click "More Info" and select "Run Anyway." For Android Users

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: The latest stable build (v0.15.494) is approximately 6.53 GB , indicating a massive amount of new high-quality renders and animations.

Last updated: May 2026. Links and version numbers verified at the time of writing.

Overview

• Getting Started with Ext JS 4
• Upgrade Guide
• Upgrade 4.1 to 4.2
• Upgrade 4.0 to 4.1
• Performance Guide

Concepts

• The Class System
• MVC Application Architecture
• Layouts and Containers
• Components
• The Data Package
• Drag and Drop
• Localization
• Keyboard Navigation
• Unit Testing
• Unit testing MVC Controllers
• Accessibility

Components

• The Grid Component
• Trees
• Drawing
• Charting
• The Form Package
• Theming

Sencha Cmd

• Introduction to Sencha Cmd
• Using Sencha Cmd with Ext JS
• Compiler-Friendly Code Guidelines
• Workspaces in Sencha Cmd
• Sencha Cmd Packages
• Creating Sencha Cmd Packages
• Single-Page Ext JS Apps
• Multi-Page Ext JS Apps
• Image Slicing for IE
• Advanced Sencha Cmd
• Sencha Compiler Reference
• Ant Integration
• Generating Metadata
• Sencha Cmd Reference

Tutorials

• App Architecture Part 1
• App Architecture Part 2
• App Architecture Part 3
• Ext Direct and Grid Part 1
• Ext Direct and Grid Part 2
• Editable Grid + Node.js 1
• Editable Grid + Node.js 2

Enterprise

• Loading data from an AMF data source
• Using SOAP Services in Ext JS

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