I tried to get elements that were rendered with “ngFor" loop, with putting reference variables to them for example, “#name1", “#name2". But it couldn’t work as the following.

<!-- It does't work -->
<div *ngFor="let item of items; let i = index">
  <div #item{{i}}></div>
</div>

Use @ViewChildren

　Of course, Angular has the solution of that problem. It can get elements with the following.

<div *ngFor="let item of items; let i = index">
  <div #items></div>
</div>

And use ViewChildren in ts.

export class Page {
  @ViewChildren('items') items: QueryList;
}

Although the items property is type of QueryList, you can arraylize property from type of QueryList as the following.

export class Page {
  @ViewChildren('items') items: QueryList;
  ngOnInit() {
    this.items.toArray()
  }
}