Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
omg yes, thank you!
Closing due to not being a kata issue :-)
Your code fails for negative numbers because you are attempting to convert
-to a Number, which is not possible, hence the output isNaN->Not a NumberThis comment is hidden because it contains spoiler information about the solution