traverseWithKey for Data.Map et. al.

[roconnor at theorem.ca]

Has there yet been a proposal for adding

traverseWithKey :: Applicative f => (k -> a -> f b) -> Map k a -> f (Map k b)

to Data.Map and friends yet?

If not I'll draw up a proposal.

-- 
Russell O'Connor                                      <http://r6.ca/>
``All talk about `theft,''' the general counsel of the American Graphophone
Company wrote, ``is the merest claptrap, for there exists no property in
ideas musical, literary or artistic, except as defined by statute.''