How to call router outlet child component method from parent comonent

Question

I am new to angular2

I have a button in parent component, if

Answer 1

Although it is an old questions, all the replies here are not perfect.

By using either service or child instance, you bind yourself to a specific function name that you need to call. service also forces you to use dependency injection.

There is a better way, by using a directive which makes each side completely independent from the other.

the directive is ng-router-outlet-comm.