Class AppComponent

swVehicles/src/app/app.component.ts:11–19

  styleUrls: ['./app.component.css']
})
export class AppComponent {
  pageTitle = 'Star Wars Vehicle Sales';

  cartCount$ = this.cartService.cartItems$.pipe(
    map(items => items.length)
  );

  constructor(private cartService: CartService) {}
}