type-challenges-judge

Type Challenges Judge

Problems

Progress

Diff

提出詳細

type Diff<T,U> = {
  [K in Exclude<keyof T,keyof U> | Exclude <keyof U,keyof T>]:
    K extends keyof T
    ? T[K]
    : K extends keyof U
      ? U[K]
      : never
}

提出日時	2023-09-14 12:08:58
問題	Diff
ユーザー	sankantsu
ステータス	Accepted

テストケース

import type { Equal, Expect } from '@type-challenges/utils'

type Foo = {
  name: string
  age: string
}
type Bar = {
  name: string
  age: string
  gender: number
}
type Coo = {
  name: string
  gender: number
}

type cases = [
  Expect<Equal<Diff<Foo, Bar>, { gender: number }>>,
  Expect<Equal<Diff<Bar, Foo>, { gender: number }>>,
  Expect<Equal<Diff<Foo, Coo>, { age: string; gender: number }>>,
  Expect<Equal<Diff<Coo, Foo>, { age: string; gender: number }>>,
]