I want to start using Clojure again. I made the following simple function
to generate a PIN:
(defn create-pin
([] (create-pin 8))
([n]
(let [chars (map char (range (int \0) (inc (int \9))))]
(reduce str (repeatedly n #(rand-nth chars))))))
So far so good. But I want to improve a little.
I think n should at least be four, but not greater as 16. What is the
Clojure way to do this?
The next step is that I want to use hexadecimal numbers. So I should use
(range (int \0) (inc (int \9))) combined with (range (int \A) (inc (int
\F))).
How would I do that?
Is there anything I should do differently?
Of-course I make a general function that is then called from create-pin and
create-pin-hex.
--
Cecil Westerhof
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