Created
May 14, 2019 10:32
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persistents for Clojure
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| (ns module.persistents | |
| (:require [clojure.java.io :as io])) | |
| (defn >disk [location data] | |
| (spit location (pr-str data))) | |
| (defn <disk [location] | |
| (if (.exists (io/file location)) | |
| (read-string (slurp cache-file)))) |
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use as
init
(def holder (atom (or (<disk "filename.edn") {}))
save
(>disk "filename.edn" {:a 1})