I have complited this kata, but also I still do not understand the description - what it should be done. I have just compare expectatations with arguments... Maybe some better explenation will be a grete idea?

I guess there is something wrong with the test. For JavaScript I do not use method reduce or Math in my solution, but there occure error including those metods...

I have already solved it. I have try at least 3 different ways - all working. But only one was very, very fast and simple.

Realy code-cutting kata. Thank you.

n = 184398899 ? PLease make limit of "n" to value that is needed less time to execute code than 12 seconds.
Kata need to much memory.

it is a joke, but very clever :).

Very good excercise! I had problem with running the tests, because I did not know how to create function to run - but I forgot that we have to just make new methods of Array :)