Either way, really fun kata! Thx.

Thanks for pointing that out! Messaging now updated.

Got it. Insight much appreciated.

Ok, rather than rewrite the kata, I just updated the instructions to reflect that, in this case, only integers are acceptable. Also included a method to convert negatives to positive and drop any decimals. Added additional Test.assertEquals() for negatives and zeros, and will use those Test methods going forward. Thanks.

Thanks for your suggestions. It's my first authored kata. Question: If I update the function so it only accepts positive integers, would it break the attempts submitted by other members, or rather, make them invalid?

Thanks a lot! I used it in a project a while back, and remember there being a multitude of ways to achieve the same result. Never tested for performance or edge cases, so thought this would be the perfect place to submit it.

A worthwhile exercise here, with many different solutions. Learned some better alternatives to the one I presented. Would also be interested in performance comparisons.