Ember listener debugging

gistfile1.js

if (!String.prototype.startsWith) {
  Object.defineProperty(String.prototype, 'startsWith', {
    enumerable: false,
    configurable: false,
    writable: false,
    value: function(searchString, position) {
      position = position || 0;
      return this.lastIndexOf(searchString, position) === position;
    }
  });
}
var container = Embercom.__container__;
var containerCache = container.resolveCache;
var containerKeys = Object.keys(containerCache);

function findAll(prefix) {
  return containerKeys.filter(function(key) { return key.startsWith(prefix); })
};

function find(key) {
  try {
    return container.lookup(key);
  } catch(e) {
    console.log('warning: could not lookup ' + key, e);
  }
};

function debugListeners(keys) {
  keys.forEach(function(key) {
    debugObjectListeners(key);
  })
};

function debugObjectListeners(key) {
  var object = find(key);
  if(object && object.__ember_meta__ && object.__ember_meta__.listeners) {
    var listeners = object.__ember_meta__.listeners;
    console.log(key + ' listeners:');
   
    var listenerKeys = Object.keys(listeners);
    console.log(' -> ' + key, '[' + listenerKeys.length + ']');
    
    listenerKeys.forEach(function(listenerKey) {
      var subscriptionCount = listeners[listenerKey].length / 3;
      
      if(subscriptionCount > 2) {
        console.log('    > POSSIBLE MEMORY LEAK', key, listenerKey, subscriptionCount);
      } else {
        console.log('    > ' + listenerKey, subscriptionCount);
      }
    });
    
    
    return object.__ember_meta__.listeners; 
  } else {
    console.log('skipping ' + key);
  }
};

function debug() {
  var components = findAll('component:');
  var controllers = findAll('controller:');
  var views = findAll('view:');
  
  console.log('There are ' + containerKeys.length + ' container keys');
  console.log('There are ' + components.length + ' components');
  console.log('There are ' + controllers.length + ' controllers');

  debugListeners(controllers);
  debugListeners(components);
  debugListeners(views);
  console.log('----------')
};

debug();