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1. Angular 2 :
A JavaScript framework called Angular is used to create web applications. It was first created by
Google and made public as AngularJS in 2010. A completely revised version of Angular, dubbed
Angular 2, was launched in 2016 and featured a new method for creating web apps.
The most recent version of Angular is called Angular 2+, and it contains Angular 2, 4, 5, 6, 7, 8, 9,
10, 11, and 12. TypeScript, a statically typed superset of JavaScript that adds optional type-checking
and other features to the language, is used to create Angular 2+.
Component :
The component-based architecture of Angular 2+ is one of its primary characteristics. The
fundamental units of Angular applications are components, which are used to encapsulate the
functionality and display of a particular section of an application. Similar to web components,
Angular components also offer extra capabilities like dependency injection and lifecycle hooks.
Uses :
The usage of reactive programming by Angular 2+ is another significant feature. The paradigm of
reactive programming is built around the idea of streams. Reactive programming is a technique used
in Angular to control an application's state, deal with asynchronous actions, and communicate across
components.
Additionally, Angular 2+ has a robust templating system that enables programmers to declaratively
specify the organization and functionality of a user interface. Based on HTML, Angular templates
feature a unique syntax and directives that let developers incorporate logic and dynamic behavior
into their templates.

2. Advantage :
Angular 2+'s heavy emphasis on testing is one of the main advantages of utilizing it. Unit tests and
end-to-end tests for Angular apps are simple to write because of the testing infrastructure that
Angular offers. The testing framework has features for simulating user interactions, mimicking
dependencies, and producing code coverage data.
Aspects :
A robust collection of tools for creating and deploying apps is also included with Angular 2+. A
command-line tool called the Angular CLI (Command Line Interface) makes it simple to create new
Angular projects, produce components, services, and other artifacts, as well as build and deploy
applications to different platforms.
Support for desktop and mobile applications is another crucial aspect of Angular 2+. A collection of
tools for creating cross-platform applications utilizing NativeScript and Ionic are part of the Angular
framework. Using Angular and web technologies, these tools enable developers to create native
mobile and desktop applications.
Finally, Angular 2+ has a sizable and vibrant developer and contributor community. The Angular
community offers a number of tools for developers to learn about and use Angular, including
documentation, tutorials, blogs, and forums.
Conclusion :
In conclusion, Angular 2+ is a robust JavaScript framework for creating online apps. It is a well-liked
option for creating contemporary online applications due to its component-based architecture,
reactive programming, templating system, testing framework, and collection of tools for creating and
distributing apps.