Angular2 - Interaction between components using a service

Question

I have two component A and B, where component A contains a button. I wish when user click on this button, fire a function on component B

Answer 1

Angular Service

You have to use a service to communicate between your two components.

See https://angular.io/docs/ts/latest/cookbook/component-communication.html#!#bidirectional-service

Your service has a property event. So the component A can emit the event and the component B can subscribe to it.

Use RxJS to emit and subscribe to your event.

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