Note that if you're only interested in using the resulting map as a
function, (comp f map) works well (you can throw memoize in for good
measure).
On Sun, Oct 11, 2009 at 2:40 AM, samppi wrote:
>
> Is there a function in the standard libraries that's equivalent to
> this:
>
> (defn transform-ma
On Sun, Oct 11, 2009 at 3:17 PM, Daniel Werner <
daniel.d.wer...@googlemail.com> wrote:
> On Oct 11, 6:02 am, samppi wrote:
> > Oops, you're right; I was thinking about something else. And I have
> > another mistake in my function too—I meant:
> >
> > (defn transform-map [f a-map]
> > (into
On Oct 10, 8:40 pm, samppi wrote:
> (defn transform-map [f a-map]
> (into {} (map #(vector (key %) (f (val %))) a-map)))
I always find map transformations easier to write with reduce:
(defn transform-map [f mm]
(reduce (fn [m [k v]] (assoc m k (f v))) {} mm))
-SS
--~--~-~--~---
On Oct 11, 6:02 am, samppi wrote:
> Oops, you're right; I was thinking about something else. And I have
> another mistake in my function too—I meant:
>
> (defn transform-map [f a-map]
> (into {} (map #(vector (key %) (f (val %))) a-map)))
>
> It's unfortunate that it's not in any standard l
Oops, you're right; I was thinking about something else. And I have
another mistake in my function too—I meant:
(defn transform-map [f a-map]
(into {} (map #(vector (key %) (f (val %))) a-map)))
It's unfortunate that it's not in any standard library yet. I've used
this function in every si
The short answer is no.
This came up on the dev list here:
http://groups.google.com/group/clojure-dev/browse_thread/thread/4b20e40d83095c67#
Oh, and I'd write the function slightly differently
(defn transform-map [f a-map] ...)
The f implies a mapping operation. pred implies a filter operati
Is there a function in the standard libraries that's equivalent to
this:
(defn transform-map [pred a-map]
(into {} (map (comp pred val) a-map)))
(is (= {:a 4, :b 3}
(transform-map inc {:a 3, :b 2})))
It's not like I can't write this myself; I use this a lot, though, and
I'm w
