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TypeScript Handbook - 4 - Creating Types from Types #357

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chochinlu opened this issue Jan 24, 2022 · 0 comments

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chochinlu commented Jan 24, 2022 •

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https://www.typescriptlang.org/docs/handbook/2/types-from-types.html

Generic Constraints 約束

function loggingIdentity<Type>(arg: Type): Type {
  console.log(arg.length);
  return arg;
}

會收到抱怨: Property 'length' does not exist on type 'Type'.

chochinlu added the typescript label

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