title: Referencing $scope in Angular
body: <p>if I have this function:</p>
  
  <pre><code>$scope.updateData = function() {
      chartService.updateChartData($scope);
  };
  </code></pre>
  
  <p>What is the correct way to reference $scope on the 2nd line? I imagine, ironically, <code>$scope</code> is NOT in scope there?</p>