New Twiddle

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  someInput: '',
  
  anotherThing: '',
  
  count: 1,
  doFoo() {
    this.set('anotherThing', this.get('count'));
    this.set('count', this.get('count') + 1);
  },
  
  blah: Ember.computed('someInput', function() {
    this.doFoo();
    return `blah that ${this.get('someInput')}`;
  }),
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
{{input value=someInput change=(mut someInput)}}
{{blah}}
<p>Changed things {{anotherThing}} times</p>
<br>
<br>

twiddle.json

{
  "version": "0.10.7",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.0",
    "ember-data": "2.10.0",
    "ember-template-compiler": "2.10.0",
    "ember-testing": "2.10.0"
  },
  "addons": {}
}