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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.
Aren't strings exception when it comes to comparing non-primitive types, so they are compared by value?
Can you explain why you cast to string if it is already a string (since you cast to string only if it is of type string already)?
If it is a string there should be no reason to cast it again to string? and since it is a string when compared to string it is done by value not reference?