Dart Inheritance : Checking an Objects Type at runtime

Checking an Objects Type at runtime

• Dart provides the is and as operators for checking an object's type at runtime.

• This is useful when you need to perform different actions based on the actual type of an object.

• Example :

•   class ob {
        void makeSound() {
            print('Some generic sound');
        }
    }
  
    class Dog extends Ob {
        void bark() {
            print('Woof woof!');
        }
    }
  
    class Cat extends Ob {
        void meow() {
            print('Meow');
        }
    }
  
    void main() {
        Ob dog = Dog();
        Ob cat = Cat();
  
        if(dog is Dog) {
            print('dog is of type Dog');
        } else if (dog is cat) {
            print('dog is of type Cat');
        }
  
        if(cat is Dog) {
            print('cat is of type Dog');   
        } else if (cat is Cat) {
            print('cat is of type Cat');
        }
    }
  

•   dog is of type Dog
    cat is of type Cat
  
    Exited.