count angular watchers snippet for chrome

gistfile1.txt

function countWatchers (root) {
  root = angular.element(root || document.documentElement);
  var scopes = {};
 
  function traverseElement (element) {
    var count = 0;
    var data = element.data();
    count += countWatchersFromScope(data.$isolateScope);
    count += countWatchersFromScope(data.$scope);
    angular.forEach(element.children(), function (childElement) {
      count += traverseElement(angular.element(childElement));
    });
    return count;
  }
  
  function countWatchersFromScope(scope) {
    if (scope) {
      if (!scopes.hasOwnProperty(scope.$id)) {
        scopes[scope.$id] = true;
        return scope.$$watchers ? scope.$$watchers.length : 0;
      }
    }
    return 0;
  }
 
  return traverseElement(root);
}
countWatchers();