Sometimes we need to add animations to our application to make it more friendly or give it a more sophisticated look depending on how the animation is presented (e.g. components that slide off of the screen instead of simply disappearing…

If an Ext JS application starts to show performance issues, there are always a few usual suspects that developers should focus their investigation on. In broad categories, they are network limitations (bandwidth and latency), device memory/storage limitations, and layout /…

Many of you may already be familiar with the Sencha Charting package that comes with Sencha Ext JS. It allows you to quickly create great visualizations such as 3D Column Charts or 3D Pie Charts. Often, charts are not enough…

Using Awesome Font Awesome by Seth Lemmons Ext JS 6 ships with the new Triton theme that uses font icons from Font Awesome for background images. But, did you know you could use those same icons (and many more from…

As a software developer building applications with web technology, I naturally spend lots of time in my browser. For many years web developers struggled to build cross-browser applications because many browsers (notably older versions of Internet Explorer) failed to offer…

Introduction The term “accessibility” is very broad and can be intimidating when first encountered. Often, this encounter comes from new business requirements. That is, developers have to make an existing application accessible. There are many aspects to consider for accessibility,…

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…

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…

I work for Sencha as a technical trainer, which means I travel a lot. Whenever I go through security at the airport, I have to pull out all my electronics. I’m always so amazed how many devices I have with…