4 ms·
A case expression is more common: sum ys = sum' ys 0 where sum' list total = case list of [] -> total x:xs -> sum' xs (total + x)
by felixmar 18y ago
A case expression is more common:
sum ys = sum' ys 0
where sum' list total =
case list of
[] -> total
x:xs -> sum' xs (total + x)