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roalcantara/Params.ts

Last active September 6, 2020 09:06
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TypeScript 3.9 | Advanced Types: Extracts a tuple of param types of a given function
Raw
Params.ts
type Params<F extends (...args: any[]) => any> = F extends (
...args: infer A
) => any
? A
: never
const fn00 = (name: string, age: number, single: boolean) => true
type Type1 = Params<typeof fn00> // [name: string, age: number, single: boolean]
// https://medium.com/free-code-camp/typescript-curry-ramda-types-f747e99744ab
// https://github.com/millsp/medium/blob/master/types-curry-ramda/src/index.ts
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