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in Java, actual and expected are reversed
This type of kata should be retired. A kata should not simply be "use a built-in method", especially not one as common as setting upper/lower case.
There are already plenty of white katas that involve manipulating case; a good example of such is https://www.codewars.com/kata/56efc695740d30f963000557, which was published almost a year before this one.
Though this kata is simple and low-effort, there doesn't appear to be a duplicate (probably because of how trivial and asinine this task is).
Very challenging :p
Same here. And I have been writing JS for more than half a decade now..
Probably 8kyu this one...
Nice kata but I think this is more of a 6kyu rank.
Hmm, I think 6kyu is maybe more appropriate for this kata...
Wow, Ruby is beautiful! A great kata for getting familiar with blocks!