Key Mapping

By default, the map produced by bean keywordizes the keys. If instead you pass :keywordize-keys false, string keys will be produced:

(bean #js {:a 1, :b 2, "c/d" 3, "e f" 4} :keywordize-keys false)
;; => {"a" 1, "b" 2, "c/d" 3, "e f" 4}

In either of these modes, bean is meant to interoperate with JavaScript objects via property names that will not be renamed by Google Closure Compiler.

You can control the key to property name mapping by supplying both :key->prop and :prop->key.

The following example mimics the behavior of ClojureScript's JavaScript object literal syntax, where keywords are used only if properties can be represented as simple keywords:

(defn prop->key [prop]
  (cond-> prop
    (some? (re-matches #"[A-Za-z_\*\+\?!\-'][\w\*\+\?!\-']*" prop)) keyword))

(defn key->prop [key]
  (cond
    (simple-keyword? key) (name key)
    (and (string? key) (string? (prop->key key))) key
    :else nil))

(bean #js {:a 1, :b 2, "c/d" 3, "e f" 4} :prop->key prop->key :key->prop key->prop)
;; => {:a 1, :b 2, "c/d" 3, "e f" 4}