Answers for "reload specific part of the page angular"

How to Reload a Component in Angular

reloadComponent() {
  let currentUrl = this.router.url;
      this.router.routeReuseStrategy.shouldReuseRoute = () => false;
      this.router.onSameUrlNavigation = 'reload';
      this.router.navigate([currentUrl]);
  }

reload sub component angular

this.router.navigateByUrl('/RefreshComponent', { skipLocationChange: true }).then(() => {
    this.router.navigate(['Your actualComponent']);
});