Bookmarklet to count angular watchers

gistfile1.js

javascript: (function() { 
  function getWatchCount() {

    var total = 0;

    var scopeIds = {};

    angular.forEach(
      document.querySelectorAll( ".ng-scope , .ng-isolate-scope" ),
      countWatchersInNode
    );

    return( total );


    function countWatchersInNode( node ) {

      var element = angular.element( node );

      if ( element.hasClass( "ng-isolate-scope" ) && element.isolateScope ) {

        countWatchersInScope( element.isolateScope() );

      }

      if ( element.hasClass( "ng-scope" ) ) {

        countWatchersInScope( element.scope() );

      }

    }


    function countWatchersInScope( scope ) {

      if ( scopeIds.hasOwnProperty( scope.$id ) ) {

        return;

      }

      scopeIds[ scope.$id ] = true;

      if ( scope.$$watchers ) {

        total += scope.$$watchers.length;

      }

    }

  }

  console.log("TOTAL WATCHERS: " + getWatchCount());
})();