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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.
Looks so elegant.
May qualify as best practice with a little comment on the top suggesting why you divided by 30 instead of 3...
but beautiful code regardless :D
Validations are important. Had no idea this simple problem could lead me to this piece of elegance ;w;
Beautiful solution. Almost poetic.