The @angular/core package is a fundamental part of Angular, a popular front-end web application platform. It provides the critical runtime parts of the Angular framework, including the component decorator, directives, dependency injection, and the core Angular APIs necessary for building dynamic single-page web applications.

What are @angular/core's main functionalities?

Components

Components are the building blocks of Angular applications. They control a patch of screen called a view. The @Component decorator indicates that the class immediately below it is a component and provides metadata about the component.

"@Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { title = 'My Angular App'; }"

Dependency Injection

Dependency Injection (DI) is a design pattern used in Angular to make components or classes dependent on interfaces rather than concrete implementations. This improves modularity and testability.

"constructor(private myService: MyService) {}"

Directives

Directives are classes that add additional behavior to elements in your Angular applications. With Angular's built-in directives, you can manage forms, lists, styles, and what users see.

"@Directive({ selector: '[appHighlight]' }) export class HighlightDirective { constructor(el: ElementRef) { el.nativeElement.style.backgroundColor = 'yellow'; } }"

Other packages similar to @angular/core

Changelog

Source

14.0.2 (2022-06-15)

common

| Commit | Type | Description | | -- | -- | -- | | ef5cba3df7 | fix | allow null in ngComponentOutlet (#46280) |

compiler-cli

| Commit | Type | Description | | -- | -- | -- | | 8ecfd71fd7 | fix | don't emit empty providers array (#46301) | | b92c1a6ada | fix | use inline type-check blocks for components outside rootDir (#46096) |

core

| Commit | Type | Description | | -- | -- | -- | | 3fd8948b4a | fix | Resolve forwardRef declarations for jit (#46334) |

Special Thanks

Alex Rickabaugh, Andrew Scott, Badawi7, Daniel Schmitz, Derek Cormier, JoostK, Kevin Davila, Kristiyan Kostadinov, Paul Draper, Paul Gschwendtner, Tom Eustace, Totati, Younes Jaaidi, alefra, dario-piotrowicz, markostanimirovic, mgechev, piyush132000, sten-bone and vivekkoya

Readme

Source

Angular

The sources for this package are in the main Angular repo. Please file issues and pull requests against that repo.

License: MIT

FAQs

What is @angular/core?

Is @angular/core popular?

Is @angular/core well maintained?

Last updated on 11 Apr 2017

Did you know?

Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.

Install