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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.
Where does it go thru the array twice?
After
.mapit's a join. Is that considered to be going thru the array?Why not use
findinstead offilter? That way can eliminate[0]at the end.Nice, could also use Array(26) to get an array of length.