-in-element

components.application-root.js

import Ember from 'ember';

export default Ember.Component.extend({
	didInsertElement() {
		this._super(...arguments);

		this.set('dynamicElement', $('#elevation')[0]);
  }
});

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('my-route');
});

export default Router;

routes.my-route.js

import Ember from 'ember';

export default Ember.Route.extend({
	setupController(controller) {
		controller.set('name', Math.random());
  },
	actions: {
		changeName() {
			this.set('controller.name', Math.random());
    }
  }
});

templates.application.hbs

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

  {{outlet}}
  <br>
  <br>

  <hr/>
  -- Elevation --
  <div id="elevation">
  </div>

templates.components.application-root.hbs

{{yield dynamicElement}}

templates.my-route.hbs

{{#application-root as |dynamicElement|}}
	{{#-in-element dynamicElement}}
		{{name}}	
		<button {{action 'changeName'}}>Change Name </button>
	{{/-in-element}}
{{/application-root}}

twiddle.json

{
  "version": "0.13.0",
  "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": "2.16.3"
  }
}