nested array

components.my-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  categories: [{"name":"Category One","items":["one","two","three"]},{"name":"Category Two","items":["banana","orange"]},{"name":"Category Three","items":["pizza","prunes"]}]
});

controllers.application.js

import Ember from 'ember';

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

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>
{{my-component}}

templates.components.my-component.hbs

<h3>My Component</h3>
{{yield}}


{{#each categories as |category|}}
	<div>{{input type="text" value=category.name}} - [Category] - {{category.name}}</div>
  {{#each category.items as |item|}}
  	<div>{{input type="text" value=item}} - [Item] - {{item}}</div>
  {{/each}}
{{/each}}

twiddle.json

{
  "version": "0.13.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.16.2",
    "ember-template-compiler": "2.16.2",
    "ember-testing": "2.16.2"
  },
  "addons": {
    "ember-data": "2.16.3"
  }
}