New Twiddle

controllers.application.js

import Ember from 'ember';

const { run } = Ember; 

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  
  func1() {
    let log = function() {
    	console.log('boom!');
    }
  	run.once(log);
  },
  
  log() {
    console.log('bam!');
  },
  
  func2() {
  	run.once(this.log);
  },
  
  actions: {
  	callFunc1() {
    	this.func1();
      this.func1();
    },
    
		callFunc2() {
    	this.func2();
      this.func2();
    }

  }
});

templates.application.hbs

<button onclick={{action 'callFunc1'}}>callFunc1</button>
<button onclick={{action 'callFunc2'}}>callFunc2</button>

twiddle.json

{
  "version": "0.12.1",
  "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": "2.12.1"
  }
}