On Thursday, May 12, 2016 at 3:59:10 AM UTC-4, dennis wrote:
>
> A try:
>
> (let [raw (list :a 1 :b 2 :c 3)]
> (->> raw
> (partition 2)
> (filter #(even? (second %)))
> (map vec)
> (into {})
> (merge {:raw raw})))
>
> => {:b 2, :raw (:a 1 :b 2 :c 3)}
>
Brilliant. Actually, I had my own spec wrong. Adjusting for that:
(let [raw (list :a 1 :b 2 :c 3 :d 42)]
> (merge {:cz (->> raw
> (partition 2)
> (filter #(even? (second %)))
> (map vec)
> (into {}))}
> (->> raw
> (partition 2)
> (map (fn [[k v]] (vector k (when-not (even? v) v))))
> (into {}))))
> ;; => {:cz {:b 2, :d 42}, :a 1, :b nil, :c 3, :d nil}
ie, I want the :cz (formerly :raw) key to hold a selective map of the
inputs, and then all the inputs as key-values but with some values cleared.
Further repairs welcome.
Thx! -kt
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