extending link-to

components.my-link.js

import Ember from 'ember';

export default Ember.LinkComponent.extend({
});

controllers.application.js

import Ember from 'ember';

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

router.js

import Ember from 'ember';
import config from './config/environment';

const Router = Ember.Router.extend({
  location: 'none'
});

Router.map(function() {
  this.route('home');
});

export default Router;

routes.home.js

import Ember from 'ember';

export default Ember.Route.extend({
});

styles.app.css

body {
  margin: 12px 16px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
}

a {
  padding: 3px 10px;
}

a.active {
  font-weight: 700;
  background: #bbb;
}

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
{{my-link "Index" "index"}} | 
{{my-link "Home" "home"}}
<br>
<br>

templates.components.my-link.hbs

[{{#if linkTitle}}{{linkTitle}}{{else}}{{yield}}{{/if}}]

twiddle.json

{
  "version": "0.7.2",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "release",
    "ember-data": "release",
    "ember-template-compiler": "release"
  }
}