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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.
Two lines solution but slowly. Sometimes is good to write a little bit more with the confidence that you'll save time in production.
This comment is hidden because it contains spoiler information about the solution
Didn't know about the argument for
with_index. Great!Wonderful!