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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.
how does it speed up things? I just found that the '+' can be also written as '{1,}' which would mean occurs one ore more times, is that somehow an internal 'string manipulation shortcut' that skips parts of the string, that match the pattern and is therefore faster, or how does it work, that the string can be processed faster?