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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.
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In my book a digit is a character as long as it is a string.
Punctuation is more tricky here, considering the name would be a part of the URL, but I see that nobody cared about this (including me)
Create a function for generating a random 6 "character" string which will be used to access the photo URL.
progressive!
You aren't checking if the generated value exists in the library or not