This reminds me, is there anything in contrib that works like Scheme's
build-vector which works like:
(build-vector n f) produces (vec (map f (range n))), i.e., [(f 0) (f
1) (f 2) ... (f (dec n))] ?
It would be great if someone's already tested a few variations of this
fairly useful function to find the fastest way to code it, but I would
guess that it is something like (untested):
(defn build-vector [n f]
(let [n (int n)]
(loop [i (int 0) v (transient [])]
(if (= i n)
(persistent! v)
(recur (inc i n) (conj! v (f i)))))))
With something like this, (vector-of n value) could be written as
(build-vector n (fn [_] value))
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