New Twiddle

application.controller.js

import Ember from 'ember';

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

application.template.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{my-component someOption="someValue" anotherOption="anotherValue"}}
{{outlet}}
<br>
<br>

my-component.component.js

import Ember from 'ember';

export default Ember.Component.extend({
  passedItems: Ember.computed(function() {
    console.log(this.attrs);
    
    const attributeArray = $.map(this.attrs, function(value, index) {
    	return [{name: index, value: value}];
		});

  	return attributeArray;
  })
});

my-component.template.hbs

{{yield}}
<ul>
{{#each passedItems as |attribute|}}
	<li>
 		{{{attribute.name}}}: {{{attribute.value}}}
 	</li>
{{/each}}
</ul>

twiddle.json

{
  "version": "0.6.5",
  "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/2.4.3/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/2.4.0/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/2.4.3/ember-template-compiler.js"
  }
}