so#44124816

components.city-temperature.js

import Ember from 'ember';

export default Ember.Component.extend({
  tagName:''
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  rental: {bedrooms: 2, city: 'San Francisco'}
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<div class="detail bedrooms">
  <span>Number of bedrooms:</span> {{rental.bedrooms}}
</div>
<div class="detail temperature">
  <span>Current Temperature:</span> {{city-temperature location=rental.city}}
</div>
<br>
<br>

templates.components.city-temperature.hbs

{{yield}}
25C

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"
  }
}