OP solved the kata

Sadly, the tests don't give any gratification for finding a way.

They only really give you reward for complying with the reference solution.

Which reads "1001" as ". ." rather than ".." which seems way more fitting the description of 2/3 part of series.

Works fine on my machine, could you explain the issue a bit further?

No need of kmeans.

?

Like Brainfuck, it should be ignored all characters except the language's.

Thanks for the edits.

Fixed the tests, now mutating the array should do nothing ;-)

I just tried a few solutions and all worked fine. Did you see that 961 guys passed the JS kata. Maybe you mutate the input?

You shouldn't mutate the input array ;-)

Duplicate issue

Original author here, your recollection is correct. TBH this kata has evolved way beyond what was once concieved. That's a good thing but, to a certain degree it also makes it a bit of a mishmash

that's because the original language is haskell, iirc

That comment is almost a spoiler :P