July 2014
Intermediate to advanced
642 pages
15h 11m
English
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Chapter 4. Developing Web Applications in the Ext JS Framework
In Chapter 3, you became familiar with the JavaScript library jQuery. Now we’ll introduce you to a more complex product: the JavaScript framework Ext JS from Sencha. This is one of the most feature-complete frameworks available on the market, and you should give it serious consideration while deciding on the tooling for your next enterprise HTML5 application.
Exploring JavaScript Frameworks
The word framework implies that there is some precreated “software frame,” and application developers need to fit their business-specific code inside such a frame. Why would you want to do this, as opposed to having full freedom in developing your application code the way you want? The reason is that most enterprise projects are developed by teams of software engineers, and having an agreed-upon structure of the application, with clear separation of software layers, can make the entire process of development more productive.
Some JavaScript frameworks are mainly forcing developers to organize application code in layers by implementing the Model-View-Controller (MVC) design pattern. More than a dozen MVC JavaScript frameworks are being used by professional developers: Backbone.js, ExtJS, AngularJS, Ember.js, and Knockout, just to name a few.
Note
Ext JS also supports MVC, and you can read about it later in this chapter in Best Practice: MVC.
Tip
An excellent website called TodoMVC shows examples of implementing one application (a Todo list) ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.