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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.
Updated :-)
Ah, yes. And I found it, it's in the sample tests.
I'm assuming Javascript because thats the only language @GuillaumeRoche has been using :-D
language?
Are you sure? to generate the code
code = "ABCD".split("")[Math.floor(Math.random() * 4)];which are all capitals