Angular 6 run a function in every X seconds

Question

I have a function called

opensnack(text) { ... };

which is opening an angular material snackbar with the given text input.

What I

Answer 1

export class AComponent implements OnInit {
  id: string = "1";
  mySub: Subscription;

  constructor(private http: HttpClient) {
    this.mySub = interval(8000).subscribe((func => {
      this.onIdSelect(this.id);
    }))
  }    
  ngOnInit(): void {
  }
  onIdSelect(id) {
    this.http.post('https://jsonplaceholder.typicode.com/posts', id).subscribe((res => {
      console.log(res);
    }))
    // this.mySub.unsubscribe(); 
  }
}

Import the interval and Subscription from rxjs. Here, code is calling the onIdSelect() method every 8seconds. So post response will be printed on the console after every 8seconds. If you want to call the method only once after 8seconds, then just unsubscribe the mySub variable.