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@schrosis(シュレシス)

型レベのアローラロコンをアーロンにする

Last updated at Posted at 2022-07-28

TypeScriptで型レベルのアローラロコンをアーロンに進化させたい

完成形

type Evolve<T extends string> = T extends `${infer U}${infer _}${infer V}`
  ? `${U}${Evolve<V>}`
  : T

type Pokemon = Evolve<'アローラロコン'>
//   ^? type Pokemon = "アーロン"

TypeScriptすごい(小並感)

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