Return plain map from a Clojure record

Question

I have a record:

(defrecord Point [x y])
(def p (Point. 1 2))

Now I want to extract just the map from the record. These ways get the job do

Answer 1

Records are maps

(defrecord Thing [a b])

(def t1 (Thing. 1 2))
(instance? clojure.lang.IPersistentMap t1) ;=> true

So, in general there is no need to coerce them into a APersistentMap type. But, if desired you do so with into:

(into {} t1) ;=> {:a 1, :b 2}

If you want to traverse an arbitrary data structure, including nested records, making this transformation, then use walk

(def t2 (Thing. 3 4))
(def t3 (Thing. t1 t2))
(def coll (list t1 [t2 {:foo t3}]))

(clojure.walk/postwalk #(if (record? %) (into {} %) %) coll)
;=> ({:a 1, :b 2} [{:a 3, :b 4} {:foo {:a {:a 1, :b 2}, :b {:a 3, :b 4}}}])