AngularJS for Web Development: Top 10 Compelling Reasons

AngularJS is one of the most popular front-end JavaScript frameworks in the developer community. This open-source platform allows for building dynamic mobile and desktop applications. The demand for AngularJS is consistently increasing in big companies and tech startups alike.

And now more than ever, aspiring web developers are looking at honing their AngularJS skills. Keeping this in mind, we have compiled the top reasons to use AngularJS in the modern interactive web-development world. So, let us dive in!

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Reasons to use AngularJS in the Modern Interactive Web-Development

1. Why AngularJs? MVC capability. 

In most development frameworks, you have to split the application into Model-View-Controller (MVC) components and write code to re-string them together. But AngularJS makes this process easier. It not only manages the MVC components but also connects them by acting as a mediator.

Browser-based applications particularly benefit from this cleaner MVC capability of AngularJS. Therefore, it finds a special mention among the most preferred platforms for building the creative components of applications. Do you think AngularJS is the right platform to build your next mobile app development? 

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2. Advantage of declarative UI

The structural framework of AngularJS lets you use HTML as your template language or to define the user interface. HTML is a declarative language that is more intuitive and less fragile to reorganize as compared to an interface written in JavaScript.

Moreover, the app can appeal to more UI developers when the view is written using HTML. The declarative approach also simplifies the development as HTML determines the controllers for each element, decides what gets loaded, and AngularJS takes care of the rest. 

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3. Effective DOM manipulations

Document Object Model or DOM is a programming interface for HTML documents. In order to add behaviour, you can manipulate the DOM or invoke a query. In AngularJS, the manipulation does not occur in the app’s view but within directives. We will explore directives in more detail in the next section. 

In this manner, AngularJS abstracts the manipulations and query calls, which provides a distraction-free space for interface designers to work.

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Also read: Most commonly asked AngularJS Interview Questions and Answers

4. Benefits of directives

AngularJS brings additional functionality to HTML with the help of directives. AngularJS directives allow you to create and use custom HTML elements in web applications. You just put the code for DOM manipulation into directives and separate them from the MVC of your app.

After this, the MVC will update the view with new data. So, directives are basically standalone, reusable elements that perform DOM manipulations, instead of the central controller doing it directly. As the name implies, they compel the application towards specific behavioural functions. They do so by assigning attributes to the elements and extending HTML functionality.

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5. The flexibility provided by filters

Filters are standalone functions that are separate from your app, just like directives. The only difference is that filters are focused on data transformations, such as formatting decimal places, reversing an array’s order, filtering an array, etc. Filters perform these functions before the data reaches the view. They are so resourceful that they can create a sortable HTML table without needing to write any JavaScript.

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6. Reduced code-writing requirement

Writing less code is one of the most appealing reasons to use AngularJS. It allows the luxury of not having to write the MVC pipeline and defines the view using HTML, ultimately making it more compact. Moreover, data-binding eliminates the requirement of inputting the data manually into the view.

And directives can be written by another team while you work on the app code as the two are separate and can be easily integrated later. You can also perform manipulation without changing the controllers. Filters make this possible by assisting you in manipulating data on the view level only. So, the overall convenience factor of AngularJS is quite exemplary. 

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7. Services to avoid complexity

Services are individual entities responsible for performing specific tasks and can be called by controllers and filters as and when required. Services are introduced in AngularJS to do the heavy-lifting, providing you with an outward API to expose whatever you want. They are substitutable and do not interfere with the MVC. You can inject services in AngularJS using the Dependency Injection Mechanism or DIM. Alternatively, you can always make some minor changes inside the controller. 

8. Data models of AngularJS are POJO

POJO refers to Plain Old JavaScript Objects that offer improved readability and reusability to computer programs. The data models in AngularJS are POJO and do not require add-on getter and setter functions. They behave like a temporary storage area to add and retrieve data but work closely with the view and controllers. Angular terms them as ‘Scopes’ to differentiate them from traditional data models.

You can add and change properties directly on the scope and then loop over arrays and objects. Angular monitors the scope for changes and automatically updates the view with the properties. The scope relies on the controller for data, which is fed according to the needs of business logic. 

9. Cognizant communication

A PubSub system facilitates decoupled communication between controllers. However, most PubSub implementations available on the web today are not context-aware. Sometimes, you may not want unrelated MVC elements to read your message. You may want a PubSub message to be readable only by the ancestors of a particular child, or by the children of a specific node. In AngularJS, you can use emit() to send a message to all ancestors and deploy broadcast() to send a message to all children controllers. 

10. Easy unit testing

AngularJS has great unit testing readiness. The Dependency Injection (DI) manages the controllers and scopes, linking the whole of Angular together. Since the DI is used to pass information to the controller, testing the web apps becomes less complicated. I

n the traditional mechanism, you have to create individual test packages that call on one component and then interact with it to check its working. In Angular unit tests, the DI can be taken over to perform unit testing.

It involves inserting mock data into the controller and measuring the behavior and output. To make things even more comfortable, Angular has a mock HTTP provider to add fake server responses to the controller. 

So, it is clear that one of the main reasons to use AngularJS is its comprehensive ability to address multiple needs of single-page application development. Besides the technical advantages mentioned above, using AngularJS also makes business sense.

It is widely used by the entrepreneurs’ community worldwide because of its low development costs, SEO friendliness, high development speed, and fast cycles of software release. 

Concluding Thoughts

The rich features and competencies of AngularJS have made it an in-demand platform in the present-day marketplace. However, there is a shortage of skilled tech professionals who have a good knowledge of development and design using angular architecture.

So, if you are a web developer, you should not delay learning it as efficiently as they can. And with the above arguments given above on why AngularJS is an ideal tool in the present-day tech world, you have all the explanations to go ahead!

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