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zwhitchcox/combine-tuples.ts

Created May 14, 2024 16:30
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combine-tuples.ts
type CombineTuples<T extends [[number] | number[]] | ([number] | number[])[]> =
T extends [infer A, ...infer B]
? A extends number[] | [number]
? B extends [number[] | [number]] | ([number] | number[])[]
? [...A, ...CombineTuples<B>]
: never
: never
: []
type J = CombineTuples<[[1, 2, 3], [4, 5, 6]]>
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