TYPESCRIPT

typescript class extends

class Animal {
  move(distanceInMeters: number = 0) {
    console.log(`Animal moved ${distanceInMeters}m.`);
  }
}
 
class Dog extends Animal {
  bark() {
    console.log("Woof! Woof!");
  }
}
 
const dog = new Dog();
dog.bark();
dog.move(10);
dog.bark();