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10 - Tuple to Union #32140

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joyanedel opened this issue Feb 8, 2024 · 0 comments
Open

10 - Tuple to Union #32140

joyanedel opened this issue Feb 8, 2024 · 0 comments
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joyanedel commented Feb 8, 2024 •
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type TupleToUnion<T extends readonly any[]> = T extends [infer F, ...infer R] ? F | TupleToUnion<R> : never

We take the first element of the array T and union it to the rest of the elements once their type was recursively extracted

Another solution, cleaner that previous one is the next:

type TupleToUnion<T extends readonly any[]> = T[number]
@joyanedel joyanedel added answer Share answers/solutions to a question en in English labels Feb 8, 2024
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