Type Challenges Judge

Problems

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Trim Right

提出詳細

type WhiteSpace = " " | "\n" | "\t"
type Reverse<S extends string> =
  S extends `${infer S1}${infer S2}`
  ? `${Reverse<S2>}${S1}`
  : ""
type TrimLeft<S extends string> =
  S extends `${WhiteSpace}${infer S2}`
  ? TrimLeft<S2>
  : S
type TrimRight<S extends string> = Reverse<TrimLeft<Reverse<S>>>
提出日時2023-09-18 07:32:48
問題Trim Right
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 cases = [
  Expect<Equal<TrimRight<'str'>, 'str'>>,
  Expect<Equal<TrimRight<'str '>, 'str'>>,
  Expect<Equal<TrimRight<'str     '>, 'str'>>,
  Expect<Equal<TrimRight<'     str     '>, '     str'>>,
  Expect<Equal<TrimRight<'   foo bar  \n\t '>, '   foo bar'>>,
  Expect<Equal<TrimRight<''>, ''>>,
  Expect<Equal<TrimRight<'\n\t '>, ''>>,
]