Noice xD

Very well commented.

Instructions ( now ) specify "finite". NaN is not a finite Number.

The instructions say return false if any argument is not a number but the tests require an argument of NaN to return NaN instead.

Hi, I have added more test cases. Thanks for the suggestion.

Marking suggestion as solved

Hi, thanks i have changed that test case and added more in.

Hi, thanks for the suggestion. I have changed the description to "non negative integers". I hope that is OK. Cheers!

There is no clear instruction for how to treat an argument of 0. There are instructions for no arguments and for negative integer arguments and a reference to adding positive integers but nothing explicit for 0.

The fourth submit test case expects double line numbers "1:1: x" etc instead of "1: x" etc. This seems to be an error