playing with urls and the router

urlsegments.ts

const url = '/users/1/notes/42(sidebar:secondary1)?lang=en#line99';
const tree = this.router.parseUrl(url); // '/users/1/notes/42(sidebar:secondary1)?lang=en#line99'

const fragment = tree.fragment;         // line99
const queryParams = tree.queryParams;   // lang=en
const primary: UrlSegmentGroup = tree.root.children[PRIMARY_OUTLET];  // gets the UrlSegmentGroup for the primary router outlet
const sidebar: UrlSegmentGroup = tree.root.children['sidebar'];       // gets the UrlSegmentGroup for the secondary router outlet (sidebar)
const primarySegments: UrlSegment[] = primary.segments;   // returns all UrlSegments for the primary outlet. ['users','1','notes','42']
const sidebarSegments: UrlSegment[] = sidebar.segments;   // returns all UrlSegments for the secondary outlet. ['secondary1']