generateURL

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  routing: Ember.inject.service('-routing'),
  router: Ember.inject.service('router'),
  appName: 'Ember Twiddle',
  generateUrl: Ember.computed(function() {
  	return this.get('routing').generateURL('my-route');
	}),
  urlFor: Ember.computed(function () {
  	return this.get('router').urlFor('my-route');
  })
});

router.js

import EmberRouter from '@ember/routing/router';
import config from './config/environment';

const Router = EmberRouter.extend({
  location: 'none',
  rootURL: config.rootURL
});

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

export default Router;

routes.my-route.js

import Ember from 'ember';

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

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<h2>generateURL for my-route: {{generateUrl}}</h2>
<h2>urlFor for my-route: {{urlFor}}</h2>

<br>
<br>
{{outlet}}
<br>
<br>

twiddle.json

{
  "version": "0.14.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "2.18.2",
    "ember-template-compiler": "2.18.2",
    "ember-testing": "2.18.2"
  },
  "addons": {
    "ember-data": "2.18.2"
  }
}