Component Composition

components.user-card.js

import Ember from 'ember';

export default Ember.Component.extend({
});

components.user-list.js

import Ember from 'ember';

export default Ember.Component.extend({
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'New Faces in Ember',
  users: [
    {
      id: 1,
      name: 'Arijit'
  	},{
      id: 2,
      name: 'Mukesh'
  	},{
      id: 3,
      name: 'Dinesh'
    },{
    	id: 4,
      name: 'Bhavan'
    }
	]
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
{{#user-list users=users as |user|}}
	{{user-card user=user}}
{{/user-list}}
<br>
<br>
{{outlet}}
<br>
<br>

templates.components.user-card.hbs

<li>{{user.name}}</li>
{{yield}}

templates.components.user-list.hbs

{{#each users as |user|}}
	{{yield user}}
{{/each}}

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}