volatile test

controllers.application.js

import Ember from 'ember';

var volatileValue = 0;

export default Ember.Controller.extend({
  init() {
    this._super(...arguments);
    Ember.run.later(this, function interval() {
      this.incrementProperty("timer");
      console.log(this.get("value"));
      Ember.run.later(this, interval, 1000);
    }, 1000);
  },
  
  timer: 0,
  
  dep: Ember.computed("value", function() {
    var value = this.get("value");
    return "dep::" + value;
  }),
  
  value: Ember.computed(function() {
    return volatileValue++;
  }).volatile()
});

templates.application.hbs

<h1>volatile test</h1>
<br>
timer - {{timer}}
<br>
dep on volatile - {{dep}}
<ul>
  <li>volatile - {{value}}</li>
  <li>volatile - {{value}}</li>
</ul>
<br>

twiddle.json

{
  "version": "0.8.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.5.1",
    "ember-template-compiler": "2.5.1"
  }
}