htmlInjection.ts

//app.component.ts
import { Component} from '@angular/core';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html'
})
export class AppComponent{
	//define a variable with user input
  test = "<script>alert(1)</script><h1>test</h1>";
}

//app.component.html
<div [innerHTML]="test"></div>