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约 134 字小于 1 分钟

2026-02-11

题目

Implement Format<T extends string> generic.

For example,

type FormatCase1 = Format<'%sabc'> // FormatCase1 : string => string
type FormatCase2 = Format<'%s%dabc'> // FormatCase2 : string => number => string
type FormatCase3 = Format<'sdabc'> // FormatCase3 :  string
type FormatCase4 = Format<'sd%abc'> // FormatCase4 :  string

解题思路

待补充

答案

type Format<T extends string> = any

验证

import type { Equal, Expect } from '@type-challenges/utils'

type cases = [
  Expect<Equal<Format<'abc'>, string>>,
  Expect<Equal<Format<'a%sbc'>, (s1: string) => string>>,
  Expect<Equal<Format<'a%dbc'>, (d1: number) => string>>,
  Expect<Equal<Format<'a%%dbc'>, string>>,
  Expect<Equal<Format<'a%%%dbc'>, (d1: number) => string>>,
  Expect<Equal<Format<'a%dbc%s'>, (d1: number) => (s1: string) => string>>,
]

参考

无

贡献者

Cuber-Wei