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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.
Thanks, but just copying what I've seen way better developers than me use. Seems like a lot of conditionals, whether 'while' or 'if' loops, can be reduced in similar fashion by taking advantage of truthy vs non-truthy values and type coercion.