What is Angular and How Does it Work?

What is Angular?

Being used as a popular framework all over the world, angular is a well-known name in the IT industry. Deriving its name from the enclosed by angle brackets around the HTML tags, Angular is used for web development and design.

Scripts and development

The open-source, front-end web application framework, Angular, is Google’s JavaScript (TypeScript-based) and was initially known as AngularJS. The framework eliminates the need for using plug-ins or multiple frameworks for developing front-end based applications. It aids in creating dynamic web apps and client-side applications or, more importantly, Single-page-applications.

The framework comes with a plethora of robust tools and features that create high-performance apps without making the development too complicated. Angular works using the scripts, HTML, CSS, and TypeScript. Similar to the JavaScript framework in more than a few ways, Angular can be used for mobile apps, too. The built-in coding makes it easier to get familiar with the web app developer and save precious coding time.

Architecture of Angular

Based on component-oriented architecture, and hence allows a great deal of code testability. Components of a larger group, when broken down, create enough space for component independence, making them versatile and reusable in other parts of the app.

Hence, the larger apps mimic a parent tree diagram with a tree of components sprouting from the main parent component.

How does Angular work?

All Angular apps have a root module, which is one of the essential segments of Angular. The others are:

Modules
Components
Services
Templates
Metadata
Data binding
Directives
Dependency Injection

Modules: A module consists of components, services, templates, directives, pipes, and elements that combine the Angular main body and render it functional. HTTP client module is one example of this operating unit. A combination of several such units or modules makes up the Angular applications.

Components: These add the user interface into the application and be reused throughout the module or app. A class file, CSS/ SCSS, an HTML template are elements of the component.

Services: Services are used to share data across components using SC common patterns.

Templates: A template is a demo-like design that helps create the user view application.

Metadata: It assumes the place of a decorator in Angular to decorate a class or assign configuration. Component decorator is used for components, and pipe decorator is used for pipes.

Data binding: Angular provides two-way data binding. It helps with the automatic sync of data across the model and aids in viewing components.

Directives: Directive is used to instruct DOM with Angular and helps couple behavior with DOM. Directives are also used to transform UI pf the business logic or with the user interactions.

Dependency injection: DI or dependency injection refers to the coding pattern where dependencies are requested by classes from external sources and not created. Dependencies are declared in Angular at the time of the class instantiation.

Angular Application Bootstraps

Angular Project file structures are of three categories and used for the initial processing of Angular Application.

They are:

Application files
Bootstrap files
Configuration files

All these elements, when put together, make up an Angular Application.

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