Scroll to top animation with js

gistfile1.txt

  goToTop() {

    const scrollToTop = window.setInterval(() => {
      const pos = window.pageYOffset;
      if (pos > 0) {
          window.scrollTo(0, pos - 20);
      } else {
          window.clearInterval(scrollToTop);
      }
  }, 4);

    this.router.navigate(['/']);
  }