angular-chart.js
function addIdentifier() {
      $scope.dataAttributeChartID = 'chartid' + Math.floor(Math.random() * 1000000001);
      angular.element($element).attr('id', $scope.dataAttributeChartID);
      configuration.bindto = '#' + $scope.dataAttributeChartID;
    }
function addIdentifier() {
      $scope.dataAttributeChartID = 'chartid' + Math.floor(Math.random() * 1000000001);
      angular.element($element).attr('id', $scope.dataAttributeChartID);
      configuration.bindto = '#' + $scope.dataAttributeChartID;
    }
Add unique identifier for each chart