component-apply

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  appleObserver: Ember.observer('apple', function () {
    console.log('component - observer');
  }),
	didUpdateAttrs() {
		this._super(...arguments);
		console.log('didUpdateAttrs');
  },
  actions: {
		updateFromComponent() {
			this.set('apple', `Component - ${Math.random()}`);
    }
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
	apple: 'Pragi',
	appleObserver: Ember.observer('apple', function () {
    	console.log('controller - observer');
  }),
  actions: {
		updateFromController() {
			this.set('apple', `Controller - ${Math.random()}`);
    }
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{component-apply 'my-component' (hash apple=apple)}}
<hr>
Controller Value ---- {{apple}}
<hr>

<button {{action 'updateFromController'}}> updateFromController </button>
{{outlet}}
<br>
<br>

templates.components.my-component.hbs

Apple ---- {{apple}} {{mango}}
<hr>
<button {{action 'updateFromComponent'}}> updateFromComponent </button>
{{yield}}

twiddle.json

{
  "version": "0.13.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "release",
    "ember-template-compiler": "release",
    "ember-testing": "release"
  },
  "addons": {
    "ember-component-apply": "1.0.0"
  }
}