each-in dot notation and getter

controllers.application.js

import Ember from 'ember';

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

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() {
});

export default Router;

routes.index.js

import Ember from 'ember';

export default class Route extends Ember.Route {
  model() {
    const getter = {
      get foo() {
        return 'bar'; 
      }
    };
 
    const dotNotation = { ['fo.o']: 'bar' };
    const pojo = { foo: 'bar' };
    
    return {
      pojo,
      dotNotation,
      getter
    };
  }
};

templates.application.hbs

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

templates.index.hbs

<h3>POJO</h3>
<ol>
  {{#each-in model.pojo as |key value|}}
  <li>{{key}} {{value}}</li>
  {{/each-in}}
</ol>

<h3>Dot notation key</h3>
<ol>
  {{#each-in model.dotNotation as |key value|}}
  <li>{{key}} {{value}}</li>
  {{/each-in}}
</ol>

<h3>Getter</h3>
<ol>
  {{#each-in model.getter as |key value|}}
  <li>{{key}} {{value}}</li>
  {{/each-in}}
</ol>

twiddle.json

{
  "version": "0.15.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.17.0",
    "ember-template-compiler": "3.17.0",
    "ember-testing": "3.17.0"
  }
}