type-challenges-judge

Type Challenges Judge

Problems

Progress

ReplaceAll

提出詳細

type ReplaceAll<S extends string, From extends string, To extends string, Res extends string = ""> =
  From extends ""
  ? S
  : S extends `${From}${infer R}`
  ? ReplaceAll<R, From, To, `${Res}${To}`>
  : S extends `${infer L}${infer R}`
  ? ReplaceAll<R, From, To, `${Res}${L}`>
  : Res

提出日時	2023-08-08 16:45:59
問題	ReplaceAll
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<ReplaceAll<'foobar', 'bar', 'foo'>, 'foofoo'>>,
  Expect<Equal<ReplaceAll<'foobar', 'bag', 'foo'>, 'foobar'>>,
  Expect<Equal<ReplaceAll<'foobarbar', 'bar', 'foo'>, 'foofoofoo'>>,
  Expect<Equal<ReplaceAll<'t y p e s', ' ', ''>, 'types'>>,
  Expect<Equal<ReplaceAll<'foobarbar', '', 'foo'>, 'foobarbar'>>,
  Expect<Equal<ReplaceAll<'barfoo', 'bar', 'foo'>, 'foofoo'>>,
  Expect<Equal<ReplaceAll<'foobarfoobar', 'ob', 'b'>, 'fobarfobar'>>,
  Expect<Equal<ReplaceAll<'foboorfoboar', 'bo', 'b'>, 'foborfobar'>>,
  Expect<Equal<ReplaceAll<'', '', ''>, ''>>,
]