Large Array creation & virtual scrolling in angular

virtual-scrolling-angular.html

<cdk-virtual-scroll-viewport itemSize="50" class="example-viewport">
  <div *cdkVirtualFor="let item of items" class="example-item">{{item}}</div>
</cdk-virtual-scroll-viewport>

virtual-scrolling-angular.ts

 items = Array.from({length: 100000}).map((_, i) => `Item #${i}`);