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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.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions
What is happening here exactly? Is this an arrow function? And what do all the symboks inside the parenthesis mean?
actually beautiful
A person of principles (+1 for not using eval ^^)
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that was realy smart