angular.html

<ng-template ngFor let-resource [ngForOf]="resources">
 <li>
    <button (click)="resource.expanded = !resource.expanded">Open</button>
  </li>
  <li *ngIf="resource.expanded">
    Something fancy here
  </li>
</ng-template>

angularjs.html

<li ng-repeat-start="resource in resources">
  <button ng-click="resource.expanded = !resource.expanded">Open</button>
</li>
<li ng-repeat-end="" ng-show="resource.expanded">
  Something fancy here
</li>