Unfortunately typing doesn't fix this. The 2nd callback function argument of Array.map is (index:number), and the 2nd argument of Number.parseInt is (radix:number).
It's a very nasty issue to debug.
It's a very nasty issue to debug.
It would look like this
newtype Radix = Radix { radixToWord :: Word }
newtype Index = Index { indexToWord :: Word }