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00057-hard-get-required
Hard
utils
infer

挑战来源: type-challenges/00057-hard-get-required

实现高级工具类型 GetRequired<T>，该类型保留所有必需的属性

例如

type I = GetRequired<{ foo: number, bar?: string }> // expected to be { foo: number }

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测试用例来源: type-challenges/00057-hard-get-required/test-cases.ts
import type { Equal, Expect } from '@type-challenges/utils'

type cases = [
  Expect<Equal<GetRequired<{ foo: number, bar?: string }>, { foo: number }>>,
  Expect<Equal<GetRequired<{ foo: undefined, bar?: undefined }>, { foo: undefined }>>,
]