I guess we need better tests :D

clever :)

Nice! I didn't know about that. Powerful s#*t !

There are a lot of loops in this solution, but it's clever overall. I believe you can simplify it by returning:

let result = [Number(avg), {h, a, l}] 

instead of:

let result = [Number(avg), {'h': h, 'a': a, 'l': l }]

Actually, it's not a 100% duplication, and not a duplication at all (at least not intentionally). The kata you're referring to may look similar, but it's completely different.

My kata is much easier, and the argument is always a repetition of the specific string abab without any letter repetitions. What I mean is, my tests are always in the form of abcabc, not abcb. That's why it's easier to solve, and I definitely don't consider it a duplication. I can mention the kata you're referring to in the description as an example of a similar but harder kata.

resolved

I have added random tests.

This is very easy to read. And I guess this is nice practice to write easy-to-read code :)

so do you mean that I can do something like this: [...new Set(a), ...new Set(b)] insted of [...[...new Set(a)], ...[...new Set(b)]] ?

[...'abc'] in this case is similar to 'abc'.split('')

The quantity of code lines isn't a concern! 😄 What matters most is clarity and readability.

I'm confident you're aware, but achieving the same result can be done more efficiently using a single loop, specifically utilizing the 'reduce' function. There's no need for the additional 'map' operation.

I'm confident you're aware, but achieving the same result can be done more efficiently using a single loop, specifically utilizing the 'reduce' function. There's no need for the additional 'map' operation :)

tbh you dont need to do it in two separate loops, you can do this in two if statement in one loop, one after another :)

clever solution !