def_vs_let.clj

;; def in defn (rare)
(defn f [x]
  (def a (* x x))
  a)

;; var currentNamespace = {};
;; currentNamespace.f = function f (x) {
;;   currentNamespace.a = x * x;
;;   return currentNamespace.a;
;; };

;; let in defn (common)
(defn f [x]
  (let [a (* x x)]
    a))

;; var currentNamespace = {};
;; currentNamespace.f = function f (x) {
;;   const a = x * x;
;;   return a;
;; };