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298 - Length of String #33219

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KeithChou opened this issue May 13, 2024 · 0 comments

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KeithChou commented May 13, 2024

// your answers

type LengthOfString<S extends string, Result extends string[] = []> = S extends `${infer F}${infer R}`
  ? LengthOfString<R, [...Result, F]>
  : Result['length']

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