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Tutorials

Best Practices for Building HTML5 Applications

JavaScript has enjoyed a long and storied history since its creation in 1995. As a prototype-based scripting language, JavaScript quickly became useful as a mechanism to implement dynamic logic and interactivity on web sites — and combined with the latest…

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Tutorials

Top Support Tips: August 2014

New Framework, New Doctype by Greg Barry In Ext JS 5, we support IE 8+, so we no longer encourage users to use the strict HTML 4 doctype. We now recommend using an HTML5 doctype. We also recommend the X-UA-Compatible…

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Tutorials

Getting Started with GWT Super Dev Mode

If you’ve been using GWT in the last few months, you’ve undoubtedly noticed that various browsers have been removing support for classic Dev Mode. This change has been a long time coming. It helps to ensure better performing browsers and…

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Tutorials

Creating Custom Layouts in Ext JS and Sencha Touch

The Layout system is one of the most powerful and unique parts of the Sencha frameworks. Layouts handle the sizing and positioning of every Component in your application, so you don't need to manage those pieces manually. Ext JS and…

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Designing Responsive Applications with Ext JS

In today’s world, users expect to be able to use web applications not only on their desktop computers, but also their mobile devices, which come in all shapes and sizes. The requirement to make an application so adaptive can seem…

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Tutorials

Deep Dive Into Ext JS 5 Data

Introduction With the introduction of Ext JS 5, we have greatly expanded the capabilities of the Sencha Data Package, which was initially released with Ext JS 4 and Sencha Touch 2. The data package is one of the cornerstones of…

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Tutorials

Creating Theme-Specific Overrides in Ext JS

Ext JS provides a number of functions that make it simple to create and work with classes. It also provides a series of functions to extend or override existing JavaScript classes. This means you can add behaviors and create your…

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Tutorials

Getting Started with Sencha Touch 2: Build a Weather Utility App (Part 3)

In this three-part Sencha Touch tutorial, you will build the Do I need my Umbrella? app, a simple utility app that loads weather information from a web service — worldweatheronline.com. Based on weather codes, this app can predict if you…

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Tutorials

Getting Started with Sencha Touch 2: Build a Weather Utility App (Part 2)

In this three-part Sencha Touch tutorial, you will build the Do I need my Umbrella app, a simple utility app that loads weather information from a web service — worldweatheronline.com. Based on weather codes, this app can predict if you…