angular - How do I navigate to a sibling route? -

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let's presume got router config

export const employeeroutes = [    { path: 'sales', component: salescomponent },    { path: 'contacts', component: contactscomponent } ];

and have navigated salescomponent via url

/department/7/employees/45/sales

now i'd go contacts, don't have parameters absolute route (e.g. department id, 7 in above example) i'd prefer there using relative link, e.g.

[routerlink]="['../contacts']"

or 

this.router.navigate('../contacts')

which unfortunately doesn't work. there may obvious solution i'm not seeing it. can out here please?

if using new router (3.0.0-beta2), can use activatedroute navigate relative path follow:

constructor(private router: router, private r:activatedroute) {}   /// gotocontact() {   this.router.navigate(["../contacts"], { relativeto: this.r }); }

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