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TypeScript 3.9 | Advanced Types: Extracts a property’s type from an object
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type ObjectInfer<O> = | |
O extends { a: infer A } | |
? A | |
: never | |
const object = { a: 'Naruto' } | |
type Type1 = ObjectInfer<typeof object> // string | |
type Type2 = ObjectInfer<string> // never | |
// 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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