On Nov 19, 11:18 am, capricorn20 <[EMAIL PROTECTED]> wrote:
> I want create seq which keep indexes of non-zero elements of
> collection.
> Code:
>
> (defn nonzero-inx [s]
> (filter (fn [x] (not (nil? x))) (map (fn [a b] (if (not (== a 0))
> b)) s (range (count s)))))
>
> look complicated than solution in most imperative languages.
> May be possible simplest way in Clojure?
You are on the right track, this a bit more succinct:
(defn nonzero-idxs [s]
(remove nil?
(map #(when-not (zero? %1) %2)
s (iterate inc 0))))
Rich
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