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90 - Optional Keys #26039

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kiki-zjq opened this issue Apr 4, 2023 · 0 comments

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90 answer zh-CN

kiki-zjq commented Apr 4, 2023

// 你的答案
type GetOptional<T> = {
  [P in keyof T as T[P] extends Required<T>[P] ? never : P]: T[P]
}

type OptionalKeys<T> = keyof GetOptional<T>

kiki-zjq added answer zh-CN labels

github-actions bot added the 90 label

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