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Last of Array

提出詳細


type Added<T extends any[]> = [T[0], ...T];
type Last<T extends any[]> = Added<T>[T['length']];
提出日時2022-10-11 13:47:08
問題Last of Array
ユーザーyotarotsukada
ステータスAccepted
テストケース
import type { Equal, Expect } from '@type-challenges/utils'

type cases = [
  Expect<Equal<Last<[3, 2, 1]>, 1>>,
  Expect<Equal<Last<[() => 123, { a: string }]>, { a: string }>>,
]