hero-list.component.ts

@Component({
  selector: 'swkb-hero-list',
  templateUrl: './hero-list.component.html',
  styleUrls: ['./hero-list.component.scss']
})
export class HeroListComponent implements OnInit {
  heroes$: Observable<Hero[]>;
  isFirst$: Observable<boolean>;
  isLast$: Observable<boolean>;
  isLoading$: Observable<boolean>;
  constructor() { }

  ngOnInit() {
  }

  prev() {
  }

  next() {
  }

  trackByUrl(index: number, hero: Hero): string {
    return hero.url;
  }
}