Sanctuary: Implementation of R.clamp

[Fl4m3Ph03n1x]

So, the name speaks for itself.
I vote we should implement R.clamp and I agree with the interface given by @davidchambers

S.clamp :: Ord a => a -> a -> a -> a

This means we would not only be able to clamp Numbers, but also Strings and pretty much anything that has an order.

As for implementation ... I would have _no idea_ on how to implement it ....

[Bradcomp]

You could probably start by looking at the Ramda implementation and then going from there. It should be pretty similar, but swap out gt and lt for the > and < operators.

[davidchambers]

How does this implementation look?

//    clamp :: Ord a => a -> a -> a -> a
const clamp = lower => upper => S.compose (S.min (upper)) (S.max (lower));