This is smart!

Excellent Solution!

Great explanation, thanks!

Hi!!! why was the "|| []" included?

Yea true. I was rushing some 7s and 8s so I didn't think of such things :D

love regex

It fails for 'ç', 'ó', etc:

lowercaseCount("abcABçóC123!@€£#$%^&*()_-+=}{[]|':;?/>.<,~");// ===> 3. there's two more: 'çó'

Thanx for Your answer, and advice))
It is strange, that U don't see my solution. I've solved it, ofcourse not in optimal way.

Hello Kanstantsin-Sabaleuski,

I apologise if you think this Kata is a bit underrated - in case you are not aware, the difficulty of a Kata is determined by the community and the moderator approving the Kata, not the author.

By the fact that when I click "View Solution" it says that there is no solution to show, I'm assuming that you are currently stuck on this Kata and am unable to complete it? If that is true I'm more than happy to give you a hint - no Ruby (or Javascript, if you're attempting the JS version of this Kata) methods have been disabled in this Kata so if you research all the String methods available in Ruby/Javascript and choose the correct one to use, you should be able to complete this Kata in one line of code.

By the way, look at this (comment/response) carefully - once you solve this Kata, you will be surprised how straightforward this Kata is yourself*.

Cheers,
donaldsebleung

• Sorry if the starred paragraph (above) sounds offensive; this is in no way my intent - I am only trying to offer you a hint :)

Thank you for the feedback; I will update the description :)

EDIT: Description updated, thanks again for the feedback.

I think this kata is quite hard for 8 level ))
7 will be allright.

Just a minor thing, however it doesn't appear that the function name in the description has been updated to account for the JS translation (isUpperCase). While it's obvious for some to check the tests, if you're just starting out it might be a bit confusing :)