New Twiddle

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
	init() {
    this._super(...arguments);
    const store = this.get('store');
    
    window.thingz = this.thingz = [];
    this._defaultThing = store.createRecord('thing', {name: Math.random() });
    this._addThing();
  },

  _addThing() {
    const store = this.get('store');
    this.thingz.unshiftObject(store.createRecord('thing', { name: Math.random() }))
    this.thingz.pushObject(this._defaultThing);
  },

  actions: {
    addThing() {
      this._addThing();
    }
  }
});

models.thing.js

import Model from "ember-data/model";
import attr from "ember-data/attr";
import { belongsTo, hasMany } from "ember-data/relationships";

export default Model.extend({
});

templates.application.hbs

<h1 {{action "addThing"}}>Click to add thingz</h1>
<br>

{{#each thingz as |thing|}}
<li>{{thing.id}} &ndash; {{thing.name}}</li>
{{/each}}

<br>
{{outlet}}
<br>
<br>

twiddle.json

{
  "version": "0.10.6",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.9.0",
    "ember-data": "2.9.0",
    "ember-template-compiler": "2.9.0",
    "ember-testing": "2.9.0"
  },
  "addons": {}
}