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1978 - Percentage Parser #30733

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yangdonglai opened this issue Nov 9, 2023 · 0 comments

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yangdonglai commented Nov 9, 2023

// your answers
type PercentageParser<A extends string,
  First extends string = A extends `${infer F extends '+' | '-'}${infer _}` ? F : '',
  Last extends string = A extends `${infer _}%` ? '%' : ''
> = [
    First,
    A extends `${First}${infer _}${Last}` ? _ : never,
    Last
  ]

yangdonglai added answer en labels

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