If you’re interested in learning about Ext JS more fully, check out this great tutorial that is available here. It also has great community support, although they can be a bit harsh to beginners who don’t first search if their question has been answered already before asking questions. It’s extremely well documented with tons of demos and an easy to follow manual. You can get it under one of the two licenses: under a GPL or a commercial license that waives the GPL restrictions. Some functions that are available in Ext JS are not available in Ext Core though – but in our instance, it’s quite alright.Įxt JS is packed with a lot of extra features and lots of GUI gadgets. It’s licensed under the very permissive MIT license. Ext JS is available in two flavors: Ext Core and Ext JS.Įxt Core is the “lite version” of Ext JS, offering the same kind of functionalities you can find in other popular JS frameworks (like jQuery or MooTools). It’s the perfect tool for creating Rich Internet Applications ( RIA): it has a commanding effects library and an awesome GUI toolkit, providing you with tons of components that mimic desktop applications’ fluidity and complexity on the web. Although it’s true, this description is too succinct to describe this excellent JavaScript framework’s power and capabilities. What is Ext JS?Įxt JS describes itself as being a “ cross-browser JavaScript library for building rich internet applications“. Only the Ext Core will be needed in this example. I will explain the mechanics step by step so that if you prefer, you can implement the same programming logic using another JavaScript framework/library or with just JavaScript. Live DemoĬheck out the example of what we will be creating by clicking on the following link.įor this tutorial, we will use the Ext JS JavaScript framework – my favorite framework for cross-browser web application development. ![]() In this article, I will guide you through the re-creation of this astonishing effect using Ext JS, and I bet you that you will be surprised to see how easy it is to do it. Since it was first featured on Facebook, elastic textareas – elements that automatically expand or shrink depending on how much text the user inputs – has become one of the coolest functional UI effects on the web.
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