navigation.component.ts

navigation.component.ts

import { select } from 'ng2-redux';
@Component({
  template: '   
   <nav>
   <ul>
      <li *ngIf="!(isLoggedIn$ | async)">Sign in</li>
      <li *ngIf="!(isLoggedIn$ | async)">Sign up</li>
      <li *ngIf="(isLoggedIn$ | async)">Log out</li>
   </ul>
  </nav>     
  '
})
class NavComponent {
  @select(["session", "isLoggedIn"]) isLoggedIn$: Observable<boolean>;
}