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timmc/delayed-predicate.clj

Last active December 16, 2015 09:48
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delayed-predicate.clj
(defn delayed
[p init]
(let [prev (atom init)]
(fn delayed-pred [& args]
(let [now (apply p args)
ret @prev]
(reset! prev now)
ret))))
(take-while (delayed #(< % 200) true) [64 70 200 90])
;; No, don't use this. It's silly.
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