New Twiddle

controllers.application.js

import Ember from 'ember';

function computedNumber(num) {
  return Ember.computed('multiplier', function() {
    return this.get('multiplier') * num;
  });
}

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
	multiplier: 1,
	one: computedNumber(1),
	two: computedNumber(2),
	three: computedNumber(3),
	four: computedNumber(4)
});

templates.application.hbs

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


{{input value=multiplier}}
<br>
{{one}}
<br>
{{two}}
<br>
{{three}}
<br>
{{four}}

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"
  }
}