An introduction to TypeScript

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interface Animal {
  name: string;
  age: number;
  type: AnimalType;
}

enum AnimalType {
  MAMMAL = "MAMMAL",
  REPTILE = "REPTILE",
  BIRD = "BIRD",
}

function printAnimal<T extends Animal>(animal: T): void {
  console.log(`Name: ${animal.name}`);
  console.log(`Age: ${animal.age}`);
  console.log(`Type: ${animal.type}`);
}

const dog: Animal = {
  name: "Buddy",
  age: 5,
  type: AnimalType.MAMMAL,
};

const bird: Animal = {
  name: "Tweety",
  age: 2,
  type: AnimalType.BIRD,
};

printAnimal(dog);
printAnimal(bird);