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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.
Hey dcieslak,
Maybe your message was meant for someone else? I actually hadn't commented on or rated this kata until just now.
Either way, it was fun, so i gave it a very satisfied :)
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I just tested it in Chrome 40, and map is now slightly faster than using a for loop.
This comment is hidden because it contains spoiler information about the solution