Angular Zen

4 min read

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Meet AngularJS

AngularJS is a client-side MVC framework written in JavaScript. It runs in a web browser and greatly helps us (developers) to write modern, single-page, AJAX-style web applications. It is a general purpose framework, but it shines when used to write CRUD (Create Read Update Delete) type web applications.

Getting familiar with the framework

AngularJS is a recent addition to the client-side MVC frameworks list, yet it has managed to attract a lot of attention, mostly due to its innovative templating system, ease of development, and very solid engineering practices. Indeed, its templating system is unique in many respects:

  • It uses HTML as the templating language
  • It doesn’t require an explicit DOM refresh, as AngularJS is capable of tracking user actions, browser events, and model changes to figure out when and which templates to refresh
  • It has a very interesting and extensible components subsystem, and it is possible to teach a browser how to interpret new HTML tags and attributes

The templating subsystem might be the most visible part of AngularJS, but don’t be mistaken that AngularJS is a complete framework packed with several utilities and services typically needed in single-page web applications.

AngularJS also has some hidden treasures, dependency injection (DI) and strong focus on testability. The built-in support for DI makes it easy to assemble a web application from smaller, thoroughly tested services. The design of the framework and the tooling around it promote testing practices at each stage of the development process.

Finding your way in the project

AngularJS is a relatively new actor on the client-side MVC frameworks scene; its 1.0 version was released only in June 2012. In reality, the work on this framework started in 2009 as a personal project of Miško Hevery, a Google employee. The initial idea turned out to be so good that, at the time of writing, the project was officially backed by Google Inc., and there is a whole team at Google working full-time on the framework.

AngularJS is an open source project hosted on GitHub ( and licensed by Google, Inc. under the terms of the MIT license.

The community

At the end of the day, no project would survive without people standing behind it. Fortunately, AngularJS has a great, supportive community. The following are some of the communication channels where one can discuss design issues and request help:

AngularJS teams stay in touch with the community by maintaining a blog ( and being present in the social media, Google + (+ AngularJS), and Twitter (@angularjs). There are also community meet ups being organized around the world; if one happens to be hosted near a place you live, it is definitely worth attending!

Online learning resources

AngularJS has its own dedicated website ( where we can find everything that one would expect from a respectable framework: conceptual overview, tutorials, developer’s guide, API reference, and so on. Source code for all released AngularJS versions can be downloaded from

People looking for code examples won’t be disappointed, as AngularJS documentation itself has plenty of code snippets. On top of this, we can browse a gallery of applications built with AngularJS ( A dedicated YouTube channel ( has recordings from many past events as well as some very useful video tutorials.

Libraries and extensions

While AngularJS core is packed with functionality, the active community keeps adding new extensions almost every day. Many of those are listed on a dedicated website:


AngularJS is built on top of HTML and JavaScript, two technologies that we’ve been using in web development for years. Thanks to this, we can continue using our favorite editors and IDEs, browser extensions, and so on without any issues. Additionally, the AngularJS community has contributed several interesting additions to the existing HTML/JavaScript toolbox.


Batarang is a Chrome developer tool extension for inspecting the AngularJS web applications. Batarang is very handy for visualizing and examining the runtime characteristics of AngularJS applications. We are going to use it extensively in this article to peek under the hood of a running application. Batarang can be installed from the Chrome’s Web Store (AngularJS Batarang) as any other Chrome extension.

Plunker and jsFiddle

Both Plunker ( and jsFiddle ( make it very easy to share live-code snippets (JavaScript, CSS, and HTML). While those tools are not strictly reserved for usage with AngularJS, they were quickly adopted by the AngularJS community to share the small-code examples, scenarios to reproduce bugs, and so on. Plunker deserves special mentioning as it was written in AngularJS, and is a very popular tool in the community.

IDE extensions and plugins

Each one of us has a favorite IDE or an editor. The good news is that there are existing plugins/extensions for several popular IDEs such as Sublime Text 2 (, Jet Brains’ products (, and so on.


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