Itereshebi Sawa za Mzunguko katika Angular

Wakati wa kuzurura kupitia *ngFor na @for inwezekana kubainisha itereshebi sawa za mzunguko kwa kusaidia na kibadilisha even.

Mfano kwa derectiva *ngFor:

app/app.component.html<ul>
  <li *ngFor="let el of arr; let even = even">
    {{ even ? 'sawa' : 'sio' }}
    {{ el }}
  </li>
</ul>

Mfano kwa muundo @for:

app/app.component.html<ul>
  @for (el of arr; track $index) {
    <li>
      {{ $even ? 'sawa' : 'sio' }}
      {{ el }}
    </li>
  }
</ul>

app/app.component.tsexport class AppComponent {
  public arr: string[] = ['a', 'b', 'c', 'd'];
}