Navigate relative with Angular 2 Router (Version 3)

Question

How to navigate relative from /questions/123/step1 to /questions/123/step2 within a component using Router without string concatenation and specifying /questions/123/?

I've added an own answer below. Please feel free to suggest a better answer. ;-) I guess there are better approaches.

Answer 1

After doing some more research I came across with

this.router.createUrlTree(['../step2'], {relativeTo: this.activatedRoute});

and

this.router.navigate(['../step2'], {relativeTo: this.activatedRoute});

First approach (Router.createUrlTree API) did not work for me, i.e. nothing happened. Second approach (Router.navigate API) works.

However, second approach uses NavigationExtras (second argument) which is documented with @experimental. Hopefully there won't be big changes with the next release again... and NavigationExtras will be stable.

Any other suggestions/approaches, please do not hesitate to answer to my question above.

Update 2016-10-12

There is another stackoverflow question as well:

• How do I navigate to a sibling route

Update 2016-10-24

Documentation:

• Routing & Navigation (Relative Navigation)

Update 2019-03-08

It seems that there were changes in Angular 7.1. There is an answer in another post how to solve it with Angular 7.1. Please refer to https://stackoverflow.com/a/38634440/42659.