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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.
Assignments define variables globally if you don't use const, let or var. Var is defined only in the innermost function where defined, and let and const are only defined in the block where defined.