Routed Tabs

controllers.application\.js

import Controller from '@ember/controller';

export default class ApplicationController extends Controller {
  appName = 'Linked Tabs';
}

controllers.tabs\.js

import Controller from '@ember/controller';

export default class TabsController extends Controller {
  tabs = [ 'tab1', 'tab2', 'tab3', 'tab4' ];
}

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('tabs', { path: '/' }, function() {
    this.route('tab', { path: '/:tabId' });
  });
  
});

export default Router;

routes.tabs.tab\.js

import Route from '@ember/routing/route';

export default Route.extend({
  model({tabId}) {
    console.log(tabId);
    return {tabId};
  }
});

routes.tabs\.js

import Route from '@ember/routing/route';

export default Route.extend({
});

styles.app\.css

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

.tab-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tab-list li {
  display: inline-block
}

.tab-list li a {
  display: block;
  padding: 1rem;
  text-decoration: none;
  color: inherit;
}

.tab-list li a.active {
  border-bottom: 2px solid;
}

.tab-content {
  border-top: 1px solid;
}

templates.application\.hbs

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

templates.tabs.tab\.hbs

{{log model}}

<p>{{model.tabId}}</p>

templates.tabs\.hbs

<nav>
  <ul class="tab-list">
    {{#each tabs as |tab|}}
    	<li>
        <LinkTo @route="tabs.tab" @model={{tab}}>{{tab}}</LinkTo>
      </li>
    {{/each}}
  </ul>
</nav>
<section class="tab-content">
{{outlet}}
</section>

twiddle\.json

{
  "version": "0.17.0",
  "EmberENV": {
    "FEATURES": {},
    "_TEMPLATE_ONLY_GLIMMER_COMPONENTS": false,
    "_APPLICATION_TEMPLATE_WRAPPER": true,
    "_JQUERY_INTEGRATION": true
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.17.0",
    "ember-template-compiler": "3.17.0",
    "ember-testing": "3.17.0"
  },
  "addons": {
    "@glimmer/component": "1.0.0"
  }
}