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Length of String

提出詳細

type Split<S extends string, Res extends string[] = []> =
  S extends `${infer L}${infer R}`
  ? Split<R, [...Res, L]>
  : Res
type LengthOfString<S extends string> = Split<S>["length"]
提出日時2023-08-08 17:45:04
問題Length of String
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<LengthOfString<''>, 0>>,
  Expect<Equal<LengthOfString<'kumiko'>, 6>>,
  Expect<Equal<LengthOfString<'reina'>, 5>>,
  Expect<Equal<LengthOfString<'Sound! Euphonium'>, 16>>,
]