RouterState interface    npm Package @angular/router   Module import { RouterState } from '@angular/router';   Source router/src/router_state.ts     Represents the state of the router.  Interface Overview interface RouterState extends Tree { 
  snapshot: RouterStateSnapshot
  toString(): string
} How To Use @Component({templateUrl:'template.html'})
class MyComponent {
  constructor(router: Router) {
    const state: RouterState = router.routerState;
    const root: ActivatedRoute = state.root;
    const child = root.firstChild;
    const id: Observable<string> = child.params.map(p => p.id);
    //...
  }
} Description RouterState is a tree of activated routes. Every node in this tree knows about the "consumed" URL segments, the extracted parameters, and the resolved data. See ActivatedRoute for more information. Members snapshot: RouterStateSnapshot The current snapshot of the router state toString(): string

    
{'path': 'public/docs/angular~5/api/router/routerstate.html', 'source': 'DevDocs.IO'}