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1097 - IsUnion #30955

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vprokashev opened this issue Nov 30, 2023 · 0 comments

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vprokashev commented Nov 30, 2023

type IsUnion<T, K = T> = 
  [T] extends [never]
    ? false
    : K extends K
      ? [Exclude<T, K>] extends [never]
        ? false
        : true
      : false;

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