New Twiddle

components.my-component.js

import Ember from 'ember';

const myComponent = Ember.Component.extend({
});

myComponent.reopenClass({
  positionalParams: ['myVar']
});

export default myComponent;

controllers.application.js

import Ember from 'ember';

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

templates.application.hbs

<h1>Testing</h1>
<br/>

{{my-component 1 var2=3}}

templates.components.my-component.hbs

myVar:
{{attrs.myVar}}

<br/>
<br/>
Positional myVar: {{myVar}}

<br/>
<br/>
var2: {{attrs.var2}}

twiddle.json

{
  "version": "0.10.5",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "beta",
    "ember-data": "2.8.0",
    "ember-template-compiler": "beta",
    "ember-testing": "beta"
  },
  "addons": {}
}