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Trim

提出詳細

type TrimLeft<S extends string> = S extends `${" " | "\n" | "\t"}${infer R}` ? TrimLeft<R> : S
type TrimRight<S extends string> = S extends `${infer L}${" " | "\n" | "\t"}` ? TrimRight<L> : S
type Trim<S extends string> = TrimLeft<TrimRight<S>>
提出日時2023-08-08 16:07:18
問題Trim
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<Trim<'str'>, 'str'>>,
  Expect<Equal<Trim<' str'>, 'str'>>,
  Expect<Equal<Trim<'     str'>, 'str'>>,
  Expect<Equal<Trim<'str   '>, 'str'>>,
  Expect<Equal<Trim<'     str     '>, 'str'>>,
  Expect<Equal<Trim<'   \n\t foo bar \t'>, 'foo bar'>>,
  Expect<Equal<Trim<''>, ''>>,
  Expect<Equal<Trim<' \n\t '>, ''>>,
]