How am I supposed to handle multi-byte katakana, especially given that test cases are called with key="" alphabet=""?

Quite an easy question to solve. However, there should be a mention to someone new to codewars how to supply a string to the function. If it wasn't for one of the comments, I wouldn't know that you have to use this keyword. The description needs more work.

It was fun!

But it's kind of daunting to spend an hour and see that the answer in the solutions is so compact while yours is so long :p

How do you even come up with those super smart solutions ?

I didn't want to click train before I read the description and had an idea of what needs to be done. Is it just me but does not the description provide a description of whitespace but not actually states what needs to be done i.e. an objective, an output etc.

python new test framework is required. updated in this fork

Scala translation

TypeScript translation (literal translation of JavaScript)

TypeScript Translation

This kata is a subject to deduplication process here: https://github.com/codewars/content-issues/issues/203.
Please join the discussion to help us identify duplicate kata and retire them.

Hello! I would suggest to add one test case with empty string(not a realistic tweet though) and one with a single character.

How are we suppose to handle katakana (Japanese) alphabet? All my tests passed except with katakana alphabet.

Scala:

Test Failed
Expected "A0[uotszrhqadc]", but got "A0[UotszRHQadC]"
Input
  s = "a0UotszRHQadC"

These cases only occur in the random tests and it's not clear from the description which result is correct.

Scala Translation Submitted