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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.
This shortcut is often referred to as an "immediate array access" or "anonymous array declaration with immediate access". It's a concise way to define an array inline and immediately access a specific element from it without assigning it to a variable first. It's commonly used in situations where a temporary array is needed for a single operation.
What is this kind of shortcut?