অ্যাঙ্গুলারজেএস ng-change

<!DOCTYPE html>
<html lang="en" ng-app="app">
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.8.3/angular.min.js"></script>
<body ng-controller="control">

<select ng-model="color" ng-change="changed()">
  <option>লাল</option>
  <option>সবুজ</option>
  <option>নীল</option>
</select>

<p>{{color}}</p>

<script>
angular.module("app", [])
  .controller("control", function($scope) {

    $scope.changed = function() {
      $scope.message = $scope.color;
    };

  });
</script>

</body>
</html>