How to merge two enums in TypeScript

Question

Suppose I have two enums as described below in Typescript, then How do I merge them

enum Mammals {
    Humans,
    Bats,
    Dolphins
}

enum Reptiles {
             


        

Answer 1

I'd say the proper way to do it would be defining a new type:

enum Mammals {
    Humans = 'Humans',
    Bats = 'Bats',
    Dolphins = 'Dolphins',
}

enum Reptiles {
  Snakes = 'Snakes',
  Alligators = 'Alligators',
  Lizards = 'Lizards',
}

type Animals = Mammals | Reptiles;