type-challenges-judge

Type Challenges Judge

Problems

Progress

Flip Arguments

提出詳細

type ReverseTpl<T extends unknown[]> = T extends [infer E, ...infer R] ? [...ReverseTpl<R>, E] : []
type FlipArguments<T extends (...args: never[]) => unknown> = (...args: ReverseTpl<Parameters<T>>) => ReturnType<T>

提出日時	2023-09-02 16:15:29
問題	Flip Arguments
ユーザー	ookkoouu
ステータス	Accepted

テストケース

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

type cases = [
  Expect<Equal<FlipArguments<() => boolean>, () => boolean>>,
  Expect<Equal<FlipArguments<(foo: string) => number>, (foo: string) => number>>,
  Expect<Equal<FlipArguments<(arg0: string, arg1: number, arg2: boolean) => void>, (arg0: boolean, arg1: number, arg2: string) => void>>,
]