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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.
Note for readers,
charAtwill always give you''when you empty string and also withsliceit will give you''. This helps to reduce theifcheckStill a single for loop code is more readable and more efficient than the top voted solution
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