AngularJS for web development

May 10, 2022 0 Comments

Today, consumers access websites and web applications on a wide variety of devices, operating systems, and browsers. Therefore, developers have to focus a lot on the user interface (UI) of the website to make it easy to access, use, and navigate. As a robust client-side programming language, JavaScript helps developers create rich web user interfaces (UIs). Developers can further speed up web UI design by using a number of front-end JavaScript frameworks. AngularJS is a widely used front-end JavaScript framework developed and maintained by Google.

Like other open source JavaScript frameworks, AngularJS also helps developers reduce the overall cost of web application development. But it speeds up custom web application development by allowing developers to express various components of a web application by extending HTML syntax. Additionally, AngularJS updates the web application UI whenever the backend changes by supporting two-way data binding. Developers can further extend AngularJS by integrating it with various JavaScript libraries. There are also a number of reasons why many web developers prefer AngularJS over other front-end JavaScript frameworks.

Why do most web developers prefer AngularJS over other front-end JavaScript frameworks?

Extends HTML syntax

In addition to being written in JavaScript, AngularJS is also distributed as a JavaScript file. It can be embedded in a web page directly through the script tag. Additionally, it allows developers to express various components of a web application by extending HTML with three ng directives: ng-app, ng-model, and ng-bind. Web developers can even use AngularJS expressions to bind AngularJS data to HTML without writing additional code.

Implement the MVC pattern differently

Model view controllers allow developers to simplify the development of large web applications by keeping the user interface and business logic separate. But AngularJS implements the MVC pattern in a different way. The AngularJS team calls the distinct implementation of the MVC pattern model-view-whatever. The model-view-whatever architecture makes it easy for developers to improve the performance and maintainability of complex web applications.

Support bidirectional data link

In addition to implementing the MVC architecture differently, AngularJS also supports two-way data binding. The feature helps developers to synchronize data between model and view components without extra effort. AngularJS automatically updates the frontend of the web app whenever its backend changes. Since AngularJS syncs the model and view automatically, developers are not required to implement DOM manipulation.

Improve server communication

AngularJS significantly reduces web server load by supporting caching. At the same time, the built-in services provided by AngularJS help developers improve communication between client and server. The services make it even easier for web developers to work with various back-end systems and solutions. Additionally, developers can take advantage of built-in services to have data returned asynchronously without writing complex code.

Implement client-side form validation

Web developers can create a variety of forms by combining HTML, CSS, and AngularJS. AngularJS further helps developers implement client-side form validation. Monitor the state of the form as well as the individual text fields. It even notifies users about the current state of the form or input fields. Developers can easily validate form input using standard HTML5 attributes. AngularJS even allows them to write and use custom validation functions.

Keeps code maintainable and testable

AngularJS helps developers write readable and maintainable code by extending HTML syntax. In addition to extending existing HTML tags, developers can use the directive to create custom HTML syntax. At the same time, the framework keeps the code testable by allowing programmers to use JavaScript objects from the plan. Models in AngularJS are also designed as simple JavaScript objects. Therefore, developers can use the framework to write clean, readable, maintainable, and testable code.

Provides a built-in dependency injection subsystem

Frontend web developers often use dependency injection tools to inject dependencies to an object in the most convenient way and make objects exchange dependencies seamlessly. AngularJS simplifies dependency injection by providing a built-in dependency injection subsystem. The dependency injection subsystem makes it easy for developers to replace individual components outside of the web application, in addition to testing.

A component of the MEAN Stack

Many web developers prefer to use AngularJS as a key component of the MEAN stack along with MangoDB NoSQL database, Express.js and Node.js. As a full-stack JavaScript, MEAN allows programmers to write both client-side and server-side code in JavaScript. With more and more companies opting for isomorphic applications, AngularJS is widely used by developers as a component of the MEAN stack.

Various Frameworks based on AngularJS

In addition to integrating AngularJS with a number of widely used JavaScript libraries, web developers also have the option to leverage various AngularJS-based frameworks: Suave, PrimeNG, QuantumUI, Semantic UI, and Bootstrap UI. The UI components provided by these AngularJS-based frameworks make it easy for web developers to create custom web-based UIs. Furthermore, these frameworks help developers to create responsive and cross-browser web user interfaces.

keep evolving

As mentioned above, Google maintains AngularJS together with a community of developers. Therefore, it is constantly evolving to simplify and speed up web application development. In November, AngularJS 5 was released with several new features. The latest version of the JavaScript framework simplifies the development of Progressive Web Apps, removes unnecessary code from the app through a build optimizer, and provides a new HttpClient.

In general, the features provided by AngularJS help web application developers to create custom web user interfaces in no time. But web developers should remember that AngularJS, like other JavaScript frameworks, has its pros and cons. They should integrate AngularJS with other JavaScript libraries and frameworks to speed up custom web application development. You can still use the latest version of AngularJS to take advantage of a set of new and improved features.

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