TypeScript TV

TS2335

'super' can only be referenced in a derived class.

Broken Code ❌

abstract class Animal {
  abstract makeNoise(): string;
}
 
class Cat {
  constructor() {
    super();
  }
 
  makeNoise(): string {
    return 'Meow!';
  }
}

Fixed Code ✔️

Your derived class has to "extend" the base class:

abstract class Animal {
  abstract makeNoise(): string;
}
 
class Cat extends Animal {
  constructor() {
    super();
  }
 
  makeNoise(): string {
    return 'Meow!';
  }
}