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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.
Thanks for the correction :)
It will be harder to read.
You mean 'hundreadCount'?
It matches all whitespace characters like tabs or newlines. It's not better, in fact it's likely slower, but it might be more robust in a real world scenario.