New Twiddle

controllers.application.js

import Ember from 'ember';

function * myGen() {
  yield 1;
  yield 2;
  yield 3;
}

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  values: [...myGen()],
});

templates.application.hbs

<h1>Welcome to ember-concurrency</h1>

<p>
{{#each values as |v|}}
{{v}}
{{/each}}
</p>

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-concurrency": "latest"
  }
}