On Mon, Mar 23, 2009 at 3:11 AM, Konrad Hinsen <konrad.hin...@laposte.net> wrote: > > On 22.03.2009, at 21:10, Jon Nadal wrote: > >> I often need to map a function over the values of a map while >> preserving keys--something like: > ... >> Is there a more concise way to do this in Clojure? If not, is this >> something that might be worth putting in the contrib? > > Look at clojure.contrib.generic.functor/fmap. It does what you need > for maps, for all the other Clojure collections (where it works like > map except that its return value is a collection of the same type as > the input value), and you can implement it for any type you define > yourself, e.g. a tree structure.
This has methods for IPersistentVector, IPersistentSet, IPersistentMap and ISeq. Why isn't there a method for IPersistentList? -- R. Mark Volkmann Object Computing, Inc. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
