type-challenges-judge

Type Challenges Judge

Problems

Progress

Construct Tuple

提出詳細

type ConstructTuple<L extends number, C extends readonly unknown[] = []> = C["length"] extends L ?
  C
  :ConstructTuple<L, [...C, unknown]>;

提出日時	2022-07-01 00:01:48
問題	Construct Tuple
ユーザー	waki285
ステータス	Accepted

テストケース

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

type cases = [
  Expect<Equal<ConstructTuple<0>, []>>,
  Expect<Equal<ConstructTuple<2>, [unknown, unknown]>>,
  Expect<Equal<ConstructTuple<999>['length'], 999>>,
  // @ts-expect-error
  Expect<Equal<ConstructTuple<1000>['length'], 1000>>,
]