Fatvat: Passing functions around in Clojure

Passing functions around in Clojure

fn is the Clojure equivalent of lambda from Lisp.


  (fn [x] (+ x 1)) ; #
  ((fn [x] (+ x 1)) 7) ; 8

These work as you'd expect when you pass them to functions such as map


  (map (fn [x] (+ x 1)) (list 1 2 3 4)) ; (2 3 4 5)
  (defn adder [x] (+ x 1)) ; #'user/adder
  (map #'adder (list 1 2 3 4) ; (2 3 4 5)

Sharp quote (#') works same as it does in Lisp it appears.

Labels: clojure

# posted by Jeff Foster : 23:42