How do I navigate to a parent route from a child route?

Question

My problem is quite classic. I have a private part of an application which is behind a login form. When the login is successful, it goes to a child route for th

Answer 1

To navigate to the parent component regardless of the number of parameters in the current route or the parent route: Angular 6 update 1/21/19

   let routerLink = this._aRoute.parent.snapshot.pathFromRoot
        .map((s) => s.url)
        .reduce((a, e) => {
            //Do NOT add last path!
            if (a.length + e.length !== this._aRoute.parent.snapshot.pathFromRoot.length) {
                return a.concat(e);
            }
            return a;
        })
        .map((s) => s.path);
    this._router.navigate(routerLink);

This has the added bonus of being an absolute route you can use with the singleton Router.

(Angular 4+ for sure, probably Angular 2 too.)