AngularJS, an Open Source web application framework by Google, is widely used in building highly robust and scalable Single Page Applications (SPA). Single Page Applications are websites or web applications that encompass a single web page, rendering a seamless and immersive user experience. The framework is written in JavaScript, and allows using HTML as template language. It helps build rich and intuitive web applications, and also provides web developers the option to build client-side applications.
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By providing a gamut of features, AngularJS framework has built an incredible reputation for itself, which makes it a popular choice among web developers. Here are the top reasons that make this framework highly popular for web application development.
Get Started Fast and Easy
Did you know – you can have a simple AngularJS app up and running in less than 5 minutes? Think it is impossible?
The fact is that it is incredibly easy and super fast to get started with this cutting-edge JavaScript MVC framework. Simply add a few attributes to your HTML, and you are ready to build a web application in minutes. AngularJS automatically, and “magically,” turns HTML option value into powerful keywords to sort out activities template. It intelligently executes all heavy lifting to identify controller function, create dependency between template and controller, and accumulate data to deliver it on the screen.
To make it even simpler for beginners or developers who are using this framework for the first time, it provides a comprehensive tutorial, which helps create a similar web application and expand it more, all in just few minutes.
It’s Comprehensive
One of the best things about AngularJS is that it is a complete solution for seamless front-end development. Developers do not need any other framework or plug-in, and can easily build data-driven web applications using this JavaScript framework. REST actions allow you to quickly talk to your clients from the server, and get the much-needed data to interact with web pages. With AngularJS, this feature turns into simple and intuitive JavaScript objects, following the Model-view-viewmodel (MVVM) pattern. With this framework, it becomes simple to structure source code by following MVVM or Model-View Controller feature.
Another impressive feature of AngularJS is that can extend HTML and operate it like XML. This gives numerous possibilities for attributes and tags. Additionally, with this Data Binding and Dependency function, every element of the MVVM pattern can be automatically communicated across the User Interface. This minimizes the need for getters/setters, class declarations, and wrappers. Thus, AngularJS lets you express your data as simply with JavaScript primitives, or as complex via custom types.
In addition to these features, enterprise-level testing help AngularJS to build a performance-driven and highly efficient front-end database that can be maintained easily. This way it provides a fast and rich experience to end users.
DOM has Markup in AngularJS
In most client-side JavaScript frameworks, the temples operate in something like this way:
- Template with markup -> framework template engine -> HTML -> DOM
However, in AngularJS, the markup is directly put into the HTML document and flow looks something like this,
- HTML with Angular markup -> DOM -> Angular Template Engine
The framework evaluates the markup only when HTML has been loaded into DOM.
This has three major benefits – simplicity, integration with existing apps, and extensibility. You can work with AngularJS in basic HTML document from a local file system. Additionally, it allows you to build custom attributes and elements that can extend the basic HTML vocabulary.
High Performance
Certain things that make AngularJS a popular choice among web developers are ease of use and maintenance, intuitive features, robustness, and the efficiency to build new features. It is obvious that when a problem arises, developers are not ready to spend hours debugging it. At the same time, they should be able to make minor changes with much ease. AngularJS gives you the ease of maintenance. It is power-packed with smart features like Directives, Data Binding, Animations, Scope Management, Content Sanitization, API Client, I18N, Filters, Routing, Form Validation, and more to make building web applications fast and simple.
One of the key factors that web developers consider when choosing a framework is that when they want to create something new or add a feature, does the framework help or hinder with it. With AngularJS, you can be fully assured that you would have efficiency of creating new features, with the framework providing full support across each stage. At the same time, when the community grows strong and large, it can automatically overcome several issues within the framework. It helps build complementary libraries that work with the framework and make it more powerful and intuitive.
Effective Handling of Dependencies
AngularJS does dependency injection extremely well. For Single Page Applications, Angular makes it extremely easy to organize things like dynamic loading and dependencies, and use them as required without worrying about “Did I spin up an instance?” or “What namespace does it live in?” Simply mention what you need, and Angular would get it for you and also manage the entire life-cycle of the objects.
For testing, the framework allows you to segregate the app into logical modules that may have dependencies on each other, but are separately initialized. This helps to take a tactical approach towards testing as it provides only the modules that you need. Now, since the dependencies are injected, you can have an existing service like Angular $HTTP and swap it easily with $httpBackend mock for effective testing.
Conclusion
The reasons mentioned above clearly indicate that AngularJS is rapidly emerging as an important JavaScript framework to build highly professional and intuitive websites and web applications.
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