Thanks to all of you for these useful comments!! OMG!! I would never have found out by myself!!
JohanWiltink, I am not able to see the last line of your solution. I think it's incomplete.
I try to understand this last line. Is [...s] another type of sort code trick?
Thanks again :D

Ok, I see your point now, thanks.
But, I have troubles to understand your code. I am newbie with javascript.
Please, Could you tell me what is the functionality of => operator? I searched in W3School web and google, but, I couldn't find it.
Where is v variable coming from?
If you can share any reference or web page, I would look up it by myself.
I want to undersand your code, because I think I would learn, Many thanks! :D

Hi! Thanks for the review.
I added a test for empty string.
I don't get why I need to add a radom tests?
I included some non-well and well formatted roman numerals inside of test cases. Test cases should be as simple as possible, so these are easy to verify and correct. I don't see the advance of aleatory number a part of If I test all the possible cases.
Could you please be more specific? I am still learning TDD.
Thanks!

I will add a note to this kata.

Thanks for the replay. Finally, I found the problem. Numbers of iteration was not defined base on the number.

Thanks gabbek!
I have included a note in the description of my kata :D

Hi,
I have the same problem. Did you find the way to make this work? It´s driving me crazy!!! :D
Thanks

Hi, I get the next error when I run the summit test:
TypeError: divisors(...).join is not a function
at Object.handleError
at ContextifyScript.Script.runInThisContext
at Object.exports.runInThisContext

I don´t know where this error comes from. I sorted the output array and I return the array instead print.
Any suggestion?