only came here because this is the oldest question

oh no!

Also, just like StackOverflow, fastest gun in the west effect applies, and it's mostly everyone upvoting on the same early solution that was top because it was top and hence most visible.

Also, voting system is popularity vote so it's not necessarily a good indicator at all. Do you want to listen to 1000 novices, or 3 very experienced coders explaining the same topic? ;-)

Best Practices or Clever depends upon who you talk to, and whether they had their coffee yet, or which day of the week it is. for example, one might insist that Best Practices applies to this solution, while another might remind us how code golf is not always the best solution. also, Best Practices seems more presumptive than Clever, since Best Practices conforms to some standard, while Clever is basically like saying cool bro

since a vote basically means thumbs up, choose either one

No random tests.

No sample tests.

I kept getting 'can't connect to server' for this and the bang version. Oh well.

I wouldn't go that far, but this did feel a bit gimped by the example :) Then again, I was prodded to learn more by how the example did NOT explain why the yielder parameter / infinite loop function the way they do in this context.

I'm not sure why this is marked as "Clever".

Annoying. This is exactly the solution I provided and the site kept failing every time i ran the code. #codewars_fail

You should have used operator === instead of ==

Unknown unknowns are the best to learn.

The question of whether the input is an array or a range is still ambiguous.

I did say in order but I didn't specify descending or ascending, it is fixed now, thank you!