Generalised transformation functions. #255
Description
Consider adding the following functions:
withMap
withMap
:: MonoidNull v2
=> (Map k1 v1 -> Map k2 v2)
-> (MonoidMap k1 v1 -> MonoidMap k2 v2)
withMap f = fromMap . f . toMapwithMapKeys
Applies a transformation that is guaranteed to neither create nor modify values, avoiding the need to perform a post-processing step that removes null values.
withMapKeys
:: (forall x. Map k1 x -> Map k2 x)
-> (MonoidMap k1 v -> MonoidMap k2 v)
withMapKeys f (MonoidMap m) = MonoidMap (f m) See: 3deb419