braveclojure/do-things

[dianrob]

Hi,

I don't know whether here is the correct place to ask my question, so forgive me if i break some code of conduct, please.

Also I enjoyed reading the free(!) version of your book very much so far. Thank you very much for this wonderful resource.

When encountering "reduce" I am lost and can't wrap my head around it.

(defn my-reduce
  ([f initial coll]
   (loop [result initial
          remaining coll]
     (if (empty? remaining)
       result
       (recur (f result (first remaining)) (rest remaining)))))
  ([f [head & tail]]
   (my-reduce f head tail)))

this part here is the beginning of the end of my understanding. Is there additional resources somewhere to somehow grasp the idea? Or should I leave it be, since it is so early in the book? Thank you very much for any response!

EDIT:
Is this part

  ([f initial coll]
   (loop [result initial
          remaining coll]
     (if (empty? remaining)
       result
       (recur (f result (first remaining)) (rest remaining)))))

the argument to my-reduce?

Because up until now we only had arguments in "[]" following a function name. Here the part where i expected an open square bracket indeed starst with a "(".

EDIT II:

I should have read the preceding part more thoroughly. Function overloading ist the answer. Sorry for the fuzz.