New Twiddle

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  things: [{ color: 'green' }, { color: 'red' }],
  
  filterBy: Ember.computed.filterBy('things', 'color', 'green'),
  
  filter: Ember.computed.filter('things', function(thing) {
    return thing.color === 'green';
  }),
  
  actions: {
    addThing(color) {
      this.get('things').pushObject({ color });
    }
  }
});

templates.application.hbs

<h1>FilterBy</h1>
{{#each filterBy as |thing|}}
  {{thing.color}}
{{/each}}

<h1>Filter</h1>
{{#each filter as |thing|}}
  {{thing.color}}
{{/each}}

<h1>Add things</h1>
<button {{action "addThing" "green"}}>Green thing</button>
<button {{action "addThing" "red"}}>Red thing</button>
<br>
<br>

twiddle.json

{
  "version": "0.11.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.2",
    "ember-data": "2.11.0",
    "ember-template-compiler": "2.10.2",
    "ember-testing": "2.10.2"
  },
  "addons": {}
}