One liners are fine, but with the prices of electricity, this function isn't very safe to run xD.
A const where you'd save the min would be a good first nudge in the right direction.

Execution time dealing with all the functions call-stack is not going to like it, though using function is a good way to achieve code-modularity/reusibility, you can do such a thing as going overboard with it.
However, this code is readble, that's a plus :) ! (you might just do that with comments)

Although very sexy, wonder what this solution costs, since I am afraid there could be a O(N) time-execution behind the replace function. Definitly has the advantage of teaching the regex syntax though!

This is what happens when your IQ gets so high it overbounds and falls to other end of the gaussian curve; lol...

Clever one, but between getting indexOf of a letter and lastIndexOf you'd be wasting too much execution-time. Great readibility however!

Too sophisticated for the need at hand, but creative nonetheless. One notable issue is the function shift, it introduces a needless O(N) time-complexity.

1. Loading an entire lib to solve one problem is not ok; it's slowing down the compile/build of an entire code-base just to avoid a 15 minutes struggle.
2. I don't think it's the spirit of doing Katas to blizt through them with prepared algorithmic's libraries xD

But sure, at least some people got to know Lodash :D