override a getter on a subclass in typescript

To override a getter on a subclass in TypeScript, you can define a new getter with the same name on the subclass, and use the super keyword to call the getter of the base class. Here's an example:

index.ts
class Animal {
  get sound() {
    return '';
  }
}

class Dog extends Animal {
  get sound() {
    return 'woof';
  }
}

const animal = new Animal();
console.log(animal.sound); // ''

const dog = new Dog();
console.log(dog.sound); // 'woof'
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In this example, the Animal class has a sound getter that returns an empty string. The Dog class extends Animal, and overrides the sound getter with one that returns the string 'woof'. The super keyword is used in the implementation of the Dog class's sound getter to call the Animal class's sound getter.

When you create instances of Animal and Dog and access their sound properties, you can see that the overridden sound getter on the Dog class returns the expected value.