AngularJS for Web Development


Nowadays, consumers access websites and web applications on a variety of devices, operating systems, and browsers. Hence, developers have to focus heavily on the website user interface (UI) to facilitate access, use and navigation. As a powerful client-side programming language, JavaScript helps developers build rich web user interfaces (UIs). Developers can speed up web user interface 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 developing web applications. But it accelerates the development of custom web applications by enabling programmers to express the various components of a web application by extending the HTML syntax. Also, AngularJS updates the web application UI every time the backend changes by supporting bidirectional data binding. Developers can extend AngularJS further by integrating it with several 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?

Expands 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. It also allows developers to express the various components of a web application by extending the HTML using three ng directives – ng-app, ng-model and ng-bind. Web developers can use AngularJS expressions to associate AngularJS data with HTML without writing additional code.

It implements the MVC pattern differently

Form view controllers enable 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 distinct way. The AngularJS team calls the MVC style premium implementation a view model – whatever it is. Whatever the case, the form rendering architecture makes it easy for programmers to improve the performance and maintainability of complex web applications.

Supports data link method

In addition to implementing the MVC architecture differently, AngularJS also supports bidirectional data binding. The feature helps developers synchronize data between the model and component rendering without extra effort. AngularJS automatically updates the front end of the web application every time the backend changes. Since AngularJS synchronizes the model and view automatically, developers are not required to perform DOM manipulation.

Improves server connectivity

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

Performs form validation on the client side

Web developers can create a variety of forms by combining HTML, CSS, and AngularJS. AngularJS also helps developers implement client-side form validation. Monitors form status as well as individual text fields. It even notifies users of 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.

Keep the code maintainable and testable

AngularJS helps developers write readable and maintainable code by extending the 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 the JavaScript object plan. Forms in AngularJS are also designed as regular JavaScript objects. Hence, developers can use the framework to write, maintain and test clean, readable code.

Provides a built-in dependency injection system

Dependency injection tools are often used by front-end web developers to introduce dependency to an object in the most appropriate way and make objects exchange dependencies smoothly. AngularJS simplifies dependency injection by providing a built-in subsystem for dependency injection. The dependency injection subsystem makes it easier for developers to replace individual components outside of a web application, along with running testing.

A component of MEAN Stack

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

Many frameworks based on AngularJS

In addition to integrating AngularJS with a number of widely used JavaScript libraries, web developers also have the option to take advantage of several AngularJS-based frameworks – Suave, PrimeNG, QuantumUI, Semantic UI, and UI Bootstrap. The UI components provided by these AngularJS-based frameworks make it easy for web developers to create custom web-based user interfaces. Also, these frameworks help developers create responsive and multi-browser web user interfaces.

Continues to evolve

As mentioned earlier, AngularJS is maintained by Google along with a community of developers. Hence, it is constantly evolving to simplify and speed up the development of web applications. In November, AngularJS 5 was released with a number of new features. The latest version of the JavaScript framework simplifies the development of progressive web applications, removes unnecessary code from the application through the build optimizer, and provides a new HttpClient.

On the whole, the features provided by AngularJS help Web application developers To create custom web user interfaces in a short period of time. But web developers should remember that AngularJS, like other JavaScript frameworks, has its advantages and disadvantages. They have to integrate AngularJS with other JavaScript libraries and frameworks to speed up the development of custom web applications. They can still use the latest version of AngularJS to take advantage of a host of new and improved features.


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