anchor.diff:  
     Now imagine a hosting parent component that binds to the `HeroDetailComponent`'s `deleteRequest` event.
   
  -+makeExample('template-syntax/ts/app/app.component.html',
  -'event-binding-to-component')(format=".")
  ++makeExcerpt('app/app.component.html', 'event-binding-to-component', '')
  +
   :marked
     When the `deleteRequest` event fires, Angular calls the parent component's `deleteHero` method,
     passing the *hero-to-delete* (emitted by `HeroDetail`) in the `$event` variable.
  
positive.code:       [Forms](../guide/forms.html#ngModel) chapter.
    :marked
      Here's how to import the `FormsModule` to make `[(ngModel)]` available.
    +makeExample('template-syntax/ts/app/app.module.1.ts', '', 'app.module.ts (FormsModule import)')
  
  :marked
    ### Inside `[(ngModel)]`
  
negative.code:   The best it can do is raise an event reporting the user's delete request.
  
    Here are the pertinent excerpts from that `HeroDetailComponent`:
  +makeExcerpt('app/hero-detail.component.ts (template)', 'template-1')
  +makeExcerpt('app/hero-detail.component.ts', 'deleteRequest')
  
  :marked
    The component defines a `deleteRequest` property that returns an `EventEmitter`.
  