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roalcantara/ArrayInfer.ts

Last active September 6, 2020 09:08
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TypeScript 3.9 | Advanced Types: Extracts types from an array
Raw
ArrayInfer.ts
type ArrayInfer<T> =
T extends (infer U)[]
? U
: never
const array = [0, 'data', 1, 'foo']
type Type1 = ArrayInfer<typeof array> // string | number
// 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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