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Trim

提出詳細

type WhiteSpace = " " | "\n" | "\t"
type TrimLeft<S extends string> =
  S extends `${WhiteSpace}${infer Rest}`
  ? TrimLeft<Rest> : S
type TrimRight<S extends string> =
  S extends `${infer Head}${WhiteSpace}`
  ? TrimRight<Head> : S
type Trim<S extends string> = TrimRight<TrimLeft<S>>
提出日時2023-09-13 14:17:42
問題Trim
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<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 '>, ''>>,
]