type-challenges-judge

Type Challenges Judge

Problems

Progress

Drop Char

提出詳細

type DropChar<S extends string, C extends string, A extends string = ""> =
  S extends `${infer Head}${infer Rest}` ? Head extends C ? DropChar<Rest, C, `${A}`> : DropChar<Rest, C, `${A}${Head}`> : A

提出日時	2025-09-16 04:15:54
問題	Drop Char
ユーザー	balckowl
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 ! '>>,
]