currentPath Vs. currentRouteName

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',
  rootURL: config.rootURL
});

Router.map(function() {
  this.route('root', function() {
    this.route('reset', { resetNamespace: true });
  });
});

export default Router;

styles.app.css

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

a {
  padding:5px;
  border: 2px solid red;
  margin: 20px;
}

.active {
  border-color: green;
}

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
<ul>
  <li>currenPath {{currentPath}}</li>
  <li>currentRouteName {{currentRouteName}}</li>
</ul>
{{outlet}}
{{link-to 'index' 'index'}}
{{link-to 'root' 'root'}}
{{link-to 'reset' 'reset'}}
<br>
<br>

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}