ok, this was a pretty good challenge.
I took a while to get it what's going on.

While you doing this challenge you should be patient. It's so hard it's looks, but has a lot
serialization to deal with.

this is a pretty one ya

I don't know how much I am enjoying finish this challenge.
Seems something "alien" the first as you saw it, but it's pretty simple tho.

I recommend you start your research from spread operators.

Yep. I was come back here to say exactly this.

your code is case-sensitive, as opposed to what the description asks. not a kata issue

fixed by disabling older Node versions

"TypeError: Array.from(...).flat is not a function"

It's passing all tests but one. Sounds a test case issue.

Yes they is.

If you run more than once sometimes will break it

Please reset the trainer to the latest Node version. Not a kata issue though.

Test is not defined

Approved by someone.

No, they're not.

This random tests are broken tho

Test are not working correctly. It's broking here:

sortme(["Want","New","she","great","was","Of","Little","An","part","Problem","Few","little"]) 
should equal ["An","Few","great","Little","little","New","Of","part","Problem","she","Want","was"]
expected [ Array(12) ] to deeply equal [ Array(12) ]
Completed in 2ms

But if a ran in my local machine it's shows the correct result.