|<- [[Routing]]|[[The component selector]] ->|

=== Decorator ===
-> Expression that evaluate to a function allowing annotation classes at design time

<code>
syntaxe : <decorator indicator><name>(<arguments>)
exemple : @Component()
</code>

=== ... ===

-> app.component.ts
<code>
import {Component} from 'angular2/core'; // import du component

@Component({
  selector: 'app',
  template: '<h1>My App</h1>'
})
export class AppComponent {} // on exporte pour pouvoir importer ailleurs
</code>

-> main.ts
<code>
import {bootstrap} from 'angular2/platform/browser';
import {AppComponent} from './app.component';
</code>