<input type="search"><button (click)="search()" class="btn btn-danger">search</button>
<table class="table">
  <tr *ngFor="let todo of todos" (click)="toggle(todo)" [class.fertig]="todo.done">
    <td>{{ todo.label }}</td>
    <td> <button (click)="delete(todo)"class="btn btn-dark">delete</button> </td>
  </tr>
</table>

<input [(ngModel)]="newTodo.label"><button (click)="save()"class="btn btn-success"><i class="material-icons">
  save
</i></button>