New Twiddle

application.controller.js

import Ember from 'ember';

const COLORS = [
  { name: "red"},
  { name: "green"},
  { name: "refactor"}
].map((c) => Ember.Object.create(c));

export default Ember.Controller.extend({
  appName:'Ember Twiddle',
  colors: COLORS,
  
  actions: {
    deleteColor(color) {
      const colors = this.get('colors');
      colors.removeObject(color);
    },
    reset() {
      const COLORS = [
        { name: "red"},
        { name: "green"},
        { name: "refactor"}
      ].map((c) => Ember.Object.create(c));
      this.set('colors', COLORS);
    }
  }
});

application.template.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<ul>
{{#each colors as |color|}}
  {{color-entry color=color deleteEntry=(action 'deleteColor')}}
{{/each}}
<button {{action 'reset'}}>Reset</button>
</ul>
<br>
<br>

color-entry.component.js

import Ember from 'ember';

export default Ember.Component.extend({
  actions: {
    sayName() {
      alert(this.get('color.name'));
    },
    delete() {
      this.attrs.deleteEntry(this.get('color'));
    }
  }
});

color-entry.template.hbs

<li{{action 'sayName'}}>{{color.name}}<span><button {{action 'delete'}}>X</button></span></li>

twiddle.json

{
  "version": "0.5.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.2.0/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.2.0/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.2.0/ember-template-compiler.js"
  }
}