angular html for loop index code example

Example 1: ngfor

<li *ngFor="let item of items; index as i; trackBy: trackByFn">...</li>

Example 2: ngfor index

<ul>
    <li *ngFor="let item of items; let i = index" [attr.data-index]="i">
        {{item}}
        {{i}}
    </li>
</ul>