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bitemyapp/gist:6643575

Created September 20, 2013 20:39
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gistfile1.clj
(defn ?assoc-transform
"(?assoc-transform {:a 1} :a 2 sequential? vector) => {:a [1 2]}"
[m k v test transform]
(let [val (m k)]
(if-let [okay (test val)]
(assoc m k v)
(assoc m k (transform val v)))))
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