Rejecting, this is already the current description. The only difference being

This translation:

ticker('Hello world!', 10, 4) => '      Hell'

Current description:

ticker('Hello world!', 10, 4)   // '      Hell'

I would create a regexp variable to have 1 rule for this function..., also replace + to Number() also need to add a test if it's non matched...

If you have a problem and then you think you have to use regex to solve that problem, now you're left with two problems.
Great clever solution tho.

Python 3.8 translation

Moreover, the solution uses a lot of regex match calls for the same array items during the sorting. That is not efficient by its nature.

This looks cool, but sorting takes O(n*log(n)) time, while we already have the exact place where it should be, so it should be possible to do the same in O(n) time

Can someone approve this?

he! he! he! like a xmas garland ! ;))

Thank you, Blind4Basics, I logout and in again. Then it worked. Just updating page didn't work. Thank you for fixing!

load the page of the trainer again: it should be. If still not good, post here the input, expected and actual values.

For python, it is still not resolved.

resolved