4 min read
Polymorphism
Prerequisites: Inheritance
Polymorphism means different classes can define a method with the same name, and calling code can use any of them the same way, without caring which specific class it actually is.
class Dog {
speak() { return "Woof"; }
}
class Cat {
speak() { return "Meow"; }
}
for (const animal of [new Dog(), new Cat()]) {
console.log(animal.speak());
}
Expected output
Woof
Meow