loading resolver

application.route.js

import Ember from 'ember';

export default Ember.Route.extend({
  actions: {
    loading() {
      console.log('loading');
    }
  }
});

controllers.application.js

import Ember from 'ember';

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

index.template.hbs

<h2>Application Index page</h2>
{{#link-to "posts.index"}}posts{{/link-to}}

posts.index.route.js

import Ember from 'ember';

export default Ember.Route.extend({
    model() {
    return new Ember.RSVP.Promise(function (resolve, reject) {
      Ember.run.later(function () {
        resolve();
      }, 1000);
    });
  }

});

posts.index.template.hbs

{{link-to 'index' 'index'}}
<h1>posts index</h1>
{{outlet}}

posts.template.hbs

<h1>posts</h1>
{{outlet}}

router.js

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

var Router = Ember.Router.extend({
  location: config.locationType
});

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

export default Router;

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>

twiddle.json

{
  "version": "0.4.6",
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.13.5/ember.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/1.13.5/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.13.5/ember-template-compiler.js"
  }
}