html-directive-06.ts

if (element.tagName === 'A') {
  const href: string = element.href?.toLowerCase();

  if (href?.startsWith(location.origin.toLowerCase())) {
    element.addEventListener('click', (e: MouseEvent) => {
      this._router.navigate([href.substring(location.origin.length)]);
      e.preventDefault();
    });
  }
}