Loading collection data...
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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what is your suggestion how to write this date in more correct way when using this specific date format?
What is the error that you are getting? Maybe its a sandboxing issue.