ngIf array contains index

Question

I have the following code:

  <li *ngFor="let item of serviceList; let i = index;">
       <button *ngIf="currentTools contains i" (click)="processService(item)">
       Run Service</button>
  </li>

Is there any way in Angular 2 to check if an array contains the index of my item?

I basically only want to show the items when their index number is in an array (currentTools), which is dynamically modified in a different process.

Answer 1

<li *ngFor="let item of serviceList; let i = index;">
  <button *ngIf="currentTools.indexOf(i)>-1" (click)="processService(item)">
    Run Service
  </button>
</li>

Try this