New Twiddle

controllers.application\.js

import Controller from '@ember/controller';
import Obj from 'twiddle/model';

console.log('Cont', Obj, Obj.classProp); 

export default class ApplicationController extends Controller {
  appName = 'Ember Twiddle';

	setA() {
  	Obj.classProp = 'x';
  }

	log() {
  	console.log(Obj.classProp);
    this.send('logRoute');
  }
}

model\.js

let obj = Ember.Object.extend({
	name: 'Gokul'
});

obj.classProp = 'a';

export default obj;

routes.application\.js

import Route from '@ember/routing/route';
import Obj from 'twiddle/model';

console.log('Route', Obj, Obj.classProp); 
Obj.classProp = 'b';
console.log('Route', Obj, Obj.classProp); 

export default Route.extend({ 
  
  actions: {
  	logRoute() {
    	console.log('Route', Obj.classProp);
    }
  }
});

templates.application\.hbs

<h1>Welcome to {{this.appName}}</h1>
<br>
<button {{action this.setA}}>Set </button>
<button {{action this.log}}>Log </button>

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

twiddle\.json

{
  "version": "0.17.1",
  "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/3.5.1/jquery.js",
    "ember": "3.18.1",
    "ember-template-compiler": "3.18.1",
    "ember-testing": "3.18.1"
  },
  "addons": {
    "@glimmer/component": "1.0.0"
  }
}