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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.
Could you elaborate on why this is not efficient code ? I do think it is a bit clever as the map function arguments are not explicit enough and you would have to have a deeper understanding of the arguments it takes to know what it all means but it does seem like an efficient solution.
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This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution