refresh data after some time angular

1setInterval(() => {         
2  //replaced function() by ()=>
3  this.myDate = new Date();
4  console.log(this.myDate); 
5  // just testing if it is working
6}, 1000);

1ngOnInit() {
2  if (!localStorage.getItem('foo')) { 
3    localStorage.setItem('foo', 'no reload') 
4    location.reload() 
5  } else {
6    localStorage.removeItem('foo') 
7  }
8}
9

1import { Subscription, timer } from 'rxjs';
2import { switchMap } from 'rxjs/operators';
3
4subscription: Subscription;
5statusText: string;
6
7ngOnInit() {
8    this.subscription = timer(0, 10000).pipe(
9      switchMap(() => this.myservice.checkdata())
10    ).subscribe(result => this.statustext = result);
11}
12
13ngOnDestroy() {
14    this.subscription.unsubscribe();
15}