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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 start of the code is not counted in the limited part
.
is not prohibited.:
is considered condition shorthand.Thanks for your advice. I've edited them.
Sorry but == is only used in conditions, which is not allowed. Try using maths only. I'm thinking of how to display all those forbid characters.
Oh thanks. I've fixed that.
Don't know why [[1,2,3,4,5,6,7,8,9],...,[1,2,3,4,5,6,7,8,9]] return false in console, but true in the test.