AngularJS Expression Filter uppercase

First Page

<!DOCTYPE html>
<html>
   <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js">
   </script>
   <body>
      <div ng-app="myApp" ng-controller="personCtrl">
         <p>The name is {{ lastName | uppercase }}</p>
      </div>
      <script>
         angular.module('myApp', []).controller('personCtrl', function($scope) {
            $scope.firstName = "Salman",
            $scope.lastName = "Khan"
         });
      </script>
   </body>
</html>

Output

First Page