ClojureScript to JavaScript (from mmcgrana)

clj->js.clj

(defn clj->js
  "Recursively transforms ClojureScript maps into Javascript objects,
   other ClojureScript colls into JavaScript arrays, and ClojureScript
   keywords into JavaScript strings."
  [x]
  (cond
    (string? x) x
    (keyword? x) (name x)
    (map? x) (.strobj (reduce (fn [m [k v]]
               (assoc m (clj->js k) (clj->js v))) {} x))
    (coll? x) (apply array (map clj->js x))
    :else x))

clj-js.clj

(defn clj->js
  "Recursively transforms ClojureScript maps into Javascript objects,
   other ClojureScript colls into JavaScript arrays, and ClojureScript
   keywords into JavaScript strings."
  [x]
  (cond
    (string? x) x
    (keyword? x) (name x)
    (map? x) (.-strobj (reduce (fn [m [k v]]
               (assoc m (clj->js k) (clj->js v))) {} x))
    (coll? x) (apply array (map clj->js x))
    :else x))