NavigationExtras

Enables relative navigation from the current ActivatedRoute.

Configuration:

[{
  path: 'parent',
  component: ParentComponent,
  children: [{
    path: 'list',
    component: ListComponent
  },{
    path: 'child',
    component: ChildComponent
  }]
}]

Navigate to list route from child route:

@Component({...})
 class ChildComponent {
   constructor(private router: Router, private route: ActivatedRoute) {}

   go() {
     this.router.navigate(['../list'], { relativeTo: this.route });
   }
 }

Sets query parameters to the URL.

// Navigate to /results?page=1
this.router.navigate(['/results'], { queryParams: { page: 1 } });

Sets the hash fragment for the URL.

// Navigate to /results#top
this.router.navigate(['/results'], { fragment: 'top' });

Preserves the query parameters for the next navigation.

deprecated, use queryParamsHandling instead

// Preserve query params from /results?page=1 to /view?page=1
this.router.navigate(['/view'], { preserveQueryParams: true });

config strategy to handle the query parameters for the next navigation.

// from /results?page=1 to /view?page=1&page=2
this.router.navigate(['/view'], { queryParams: { page: 2 },  queryParamsHandling: "merge" });

Preserves the fragment for the next navigation

// Preserve fragment from /results#top to /view#top
this.router.navigate(['/view'], { preserveFragment: true });

Navigates without pushing a new state into history.

// Navigate silently to /view
this.router.navigate(['/view'], { skipLocationChange: true });

Navigates while replacing the current state in history.

// Navigate to /view
this.router.navigate(['/view'], { replaceUrl: true });