Angular2 How to get reference of HTML elements generated dynamically

Use ElementRef class from @angular/core to get the parent element and then create an HTMLElement to get its dynamic elements by class name.

Component:

declare var $: any; //intentional use of jQuery-not recommended though

@Component({
  selector: 'my-app',
  template: `
    <input type='button' (click)='addDiv()' value='Add New Div' />

    <input type='button' (click)='selectDiv()' value='Select' />
  `
})
export class App {
  constructor(private elRef: ElementRef) {
  }

  addDiv() {
    /*intentional use of jQuery for appending new div
     give a class to your dynamic elements*/

    $('my-app').append("<div class='foo'>Hello I'm Dynamic!</div>");
  }

  selectDiv() {
    //create a new HTMLElement from nativeElement
    var hElement: HTMLElement = this.elRef.nativeElement;

    //now you can simply get your elements with their class name
    var allDivs = hElement.getElementsByClassName('foo');

    //do something with selected elements
    console.log(allDivs);
  }
}

Working Plunker

Edit: I used jQuery only for quick demo purpose here. Otherwise, you should not use jQuery with Angular.

The only response is

let elem:Element = document.getElementById("myProgrammaticallyChosenIndex")

No other angular weird ceremony needed

Tested on angular 4+