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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.
Forked and approved
Scrutinized tests
Added useful assertion messages
Made tests compatible with other languages
Updated to Kotlin 1.9
Kotlin translation (author inactive)
mon dieu!
Probably you compare only year parts, while if a person haven't had their birthday this year yet, they still are 17.