Functional TypeScript: Either vs Validation

functional-typescript-either-vs-validation-01.ts

type Sobriety = 'Sober' | 'Tipsy' | 'Drunk' | 'Paralytic' | 'Unconscious'

type Gender = 'Male' | 'Female'

interface Person {
  gender: Gender
  age: number
  clothes: Array<string>
  sobriety: Sobriety
}

function mkPerson(gender: Gender, age: number, clothes: Array<string>, sobriety: Sobriety): Person {
  return {
    gender,
    age,
    clothes,
    sobriety
  }
}