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

You can use a shared service to communicate with components added by the router.

You can also use the activate event of the Router outlet for the parent to know when a component was added by the router

Template

Component

  onActivate(componentRef){
    componentRef.works();
  }

Child Comp

 works(){
    console.log("works");
  }