Вивчайте Overriding Methods in Subclasses

When working with classes in JavaScript, you often want subclasses to behave differently from their parent classes in certain situations. Method overriding allows you to redefine a method in a subclass, providing specialized behavior while keeping the same method name. This is a key feature of object-oriented programming and helps you create flexible and reusable code structures. By overriding a method, the subclass version is called instead of the parent's version when you use that method on an instance of the subclass. This is especially useful when the subclass represents a more specific concept that needs to act differently from the general parent class.


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class Animal {
  speak() {
    console.log("The animal makes a sound.");
  }
}

class Dog extends Animal {
  speak() {
    console.log("The dog barks.");
  }
}

const genericAnimal = new Animal();
genericAnimal.speak(); // The animal makes a sound.

const myDog = new Dog();
myDog.speak(); // The dog barks.

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              1234567891011121314151617
            
class Animal {
  speak() {
    console.log("The animal makes a sound.");
  }
}

class Dog extends Animal {
  speak() {
    console.log("The dog barks.");
  }
}

const genericAnimal = new Animal();
genericAnimal.speak(); // The animal makes a sound.

const myDog = new Dog();
myDog.speak(); // The dog barks.

Все було зрозуміло?

Дякуємо за ваш відгук!

Секція 2. Розділ 3