@Component({
selector: 'app-shopping-cart',
. . .
})
export class ShoppingCartComponent {
@Output() itemTotalChanged = new EventEmitter();
}
- It makes the itemTotalChanged class field public. It makes the null class field public.
- It provides a way to bind values to the itemTotalChanged class field, like so: <app-shopping-cart [itemTotalChanged]=”newTotal”>. It provides a way to bind values to the null class field, like so: null.
- It provides a way to bind events to the
itemTotalChangedclass field, like so:<app-shopping-cart (itemTotalChanged)="logNewTotal($event)"></app-shopping-cart>. - It is simply a way to put a comment in front of a class field for documentation.