Define Metadata with a Decorator in Angular?

In Angular, metadata is information about a class, its members, or its methods that can be used to configure the behavior of the class or its members. Metadata can be added to a class or its members using decorators.

A decorator is a special kind of function that can be used to annotate or modify a class, its members, or its methods. In Angular, decorators are used to add metadata to a class or its members.

Here’s an example of how you can define metadata with a decorator in Angular:

import { Component } from '@angular/core';

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

In this example, the @Component decorator is used to add metadata to the AppComponent class. The @Component decorator takes an object as its argument, and this object contains the metadata for the component. The metadata includes the component’s selector, template URL, and style URLs. The component’s selector is used to specify the HTML element that represents the component, the template URL is used to specify the HTML template for the component, and the style URLs are used to specify the CSS styles for the component.