set index from 1 *ngFor angular 8 code example
Example 1: ngfor index
<ul>
<li *ngFor="let item of items; let i = index" [attr.data-index]="i">
{{item}}
</li>
</ul>
Example 2: angular for loop
let array = [1,2,3];
for (let i = 0; i < array.length; i++) {
console.log(array[i]);
}