functionclojuredefn

Clojure - How to put a list and a function inside a defn function

I am a newbie and making some exercises. How can I put a def with a list of sentences and a randomizer function inside a defn function? How does that work?

(def list["test1", "test2", "test3"]) - works fine (rand-nth list) - works fine

How do I put it inside a function defn?

Thanks for help.

Solution

  • IIUC you just want to reimplement rand-nth, no?

    (defn wrapped-rand-nth [a-list]
  (rand-nth a-list))

    If you want the list to be static (non-changing)

    (defn randomize []
  (rand-nth ["test1" "test2" "test3"]))

    works, but it creates the vector upon each call, a better way is to

    (let [the-list ["test1" "test2" "test3"]]
  (defn randomize []
    (rand-nth the-list)))