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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.
The clue is in the error message. You cannot do
null.sort()
The function
domainName
should only have one argument. The domain name is the solution you have to return.Please explain more if you want to get an answer.
expected '9 ' to equal '9'
Your solution is wrong, and it does not work in vscode either. It adds a space at the end, which should not be there.
Bugs in your solution are not a kata issue.
Obviously, it's not. The problem is in your code. Read this: https://docs.codewars.com/training/troubleshooting/#print-input