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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.
In this case your if statement is redundant :)
Anytime you have code of the form
you can simplify by doing
return statement;
Should the returns be backward you can invert the statement.