Service-Backed Component

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  helloService: Ember.inject.service('hello-world'),
  
  actions: {
    sayHello(name) {
      this.get('helloService.sayHi')(name);
    }
  }
});

services.hello-world.js

import Ember from 'ember';

export default Ember.Service.extend({
 	name: null,
  
  hello(name) {
    this.set('name', name);
  }
});

templates.application.hbs

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

{{hello-world hello=(action 'sayHello')}}

templates.components.hello-world.hbs

<input type="text" value={{name}} onchange={{action (mut name) value="target.value"}}>
<button {{action hello name}}>Say Hello</button>


{{#if name}}
  <h4>Hello {{name}}</h4>
{{/if}}

twiddle.json

{
  "version": "0.10.4",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.7.0",
    "ember-data": "2.7.0",
    "ember-template-compiler": "2.7.0"
  },
  "addons": {}
}