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Drop Char

提出詳細

type DropChar<S, C, _R extends string = ""> = S extends `${infer S1}${infer S2}`
  ? S1 extends C
  ? DropChar<S2, C, _R>
  : DropChar<S2, C, `${_R}${S1}`>
  : _R
提出日時2024-09-10 14:48:43
問題Drop Char
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 = [
  // @ts-expect-error
  Expect<Equal<DropChar<'butter fly!', ''>, 'butterfly!'>>,
  Expect<Equal<DropChar<'butter fly!', ' '>, 'butterfly!'>>,
  Expect<Equal<DropChar<'butter fly!', '!'>, 'butter fly'>>,
  Expect<Equal<DropChar<'    butter fly!        ', ' '>, 'butterfly!'>>,
  Expect<Equal<DropChar<' b u t t e r f l y ! ', ' '>, 'butterfly!'>>,
  Expect<Equal<DropChar<' b u t t e r f l y ! ', 'b'>, '  u t t e r f l y ! '>>,
  Expect<Equal<DropChar<' b u t t e r f l y ! ', 't'>, ' b u   e r f l y ! '>>,
]