New Twiddle

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

routes.index.js

import Ember from 'ember';
function pee(s) {
    return 'https://placeholdit.imgix.net/~text?txtsize=33&txt=' + s + '&w=200&h=200';
}

var colors = [
  'red', 'green', 'blue', 'yellow', 'black', 'white', 'cyan', 'asian'
];
export default Ember.Route.extend({
  model: function() {
    let ccs = [];
    for (var i = 0; i < 666; i++) {
      ccs.push(pee(colors[i % colors.length]))
    }
    return ccs;
  }
});

styles.app.css

body {
  margin: 12px 16px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
}

.xxx {
  height: 1080px;
  width: 1920px;
  overflow: scroll;
}

li {
  display: inline-block;
}

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
<div class='xxx'>
        {{outlet}}
    </div>
<br>
<br>

templates.index.hbs

<ul>
    {{#each model as |item|}}
      <li><img src={{item}}></li>
    {{/each}}
    </ul>

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": "1.11.3",
    "ember-template-compiler": "1.11.3"
  },
  "addons": {
  }
}