<!--#docregion binding  -->
<app-hero-detail [hero]="selectedHero"></app-hero-detail>
<button type="button" (click)="selectHero(hero)">
  {{hero.name}}
</button>
<!--#enddocregion binding -->

<!--#docregion structural  -->
<li *ngFor="let hero of heroes"></li>
<app-hero-detail *ngIf="selectedHero"></app-hero-detail>
