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Ts体操--Parameters #433

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zhuba-Ahhh opened this issue Jan 29, 2023 · 0 comments

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zhuba-Ahhh commented Jan 29, 2023

实现内置的 Parameters 类型，而不是直接使用它，可参考TypeScript官方文档。

type MyParameters<T extends (...args: any[]) => any> = T extends (
  ...args: infer P
) => any
  ? P
  : never;

// infer

const foo = (arg1: string, arg2: number): void => {}
type FunctionParamsType = MyParameters<typeof foo> // [arg1: string, arg2: number]

zhuba-Ahhh changed the title ~~Ts体操--push~~ Ts体操--Parameters

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