Question

I have the following data structure in Clojure

{:a [1 2 3]
 :b [4 5 6]
 :c [7 8 9]} 

And I’d like to convert it into something like

[{:a 1 :b 4 :c 7}
 {:a 2 :b 5 :c 8}
 {:a 3 :b 6 :c 9}]

At the moment I’m kinda stumped as to how to do this.

Answer 1

Got it:

(defn transpose-lists [x] 
  (map (fn [m] (zipmap (keys x) m)) (apply map vector (vals x))))

Unfortunately it doesn’t preserve order of the keys.
If anyone has a better solution then of course I’d like to hear it!