pass an action

components.child-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  click(){
    this.get('childAction')();
  }
});

components.parent-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  
  actions: {
    test() {
      alert('hello world');
    }
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>

{{#parent-component  as |parentAction|}}
	{{child-component childAction=parentAction}}
{{/parent-component}}

templates.components.child-component.hbs

{{yield}}
click me

templates.components.parent-component.hbs

{{yield (action 'test')}}

twiddle.json

{
  "version": "0.11.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.2",
    "ember-data": "2.11.0",
    "ember-template-compiler": "2.10.2",
    "ember-testing": "2.10.2"
  },
  "addons": {}
}