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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.
I realize afterward, I didn't do regex.
The solution is a "fun fact"..that i didn't know. It seems more benificial to study the alternative solutions.
It sets the starting value.
what does the ",1" do in the reduce?