user-list.component.html

<h1>CUSTOMERS</h1>
 
<div *ngFor="let user of users | async" style="width: 300px;">
  <userdetails [user]='user'></userdetails>
</div>
 
<div>
  <button type="button" class="button btn-danger" (click)='deleteUsers()'>Delete All</button>
</div>