You can use map to get your new sequence of pairs, the turn it into a hash-map
using into,
(->> {:first "john" :last "smith" :age 25}
(map #(let [[k v] %]
(if (string? v)
[k (.toUpperCase v)] [k v])))
(into {}))
Best,
--
Nurullah Akkaya
http://nakkaya.com
On Tuesday, February 22, 2011 at 5:08 AM, yair wrote:
> I'm hoping this is a dumb question and I've missed something obvious.
> I have a map with various key-value pairs and I want to transform some
> of the values, e.g.
>
> (def mymap {:first "john" :last "smith" :age 25}) and say I want to
> change the strings to be upper case.
> Right now all I can think of doing is using reduce and passing in an
> empty map and the re-associating each key with the (possibly)
> transformed value. Is there something like the map function that
> takes two parameters, one a function that receives a pair and returns
> a new pair, and the other a map, and returns a map that's
> reconstituted from those pairs?
>
> Thanks
>
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