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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.
Elegant way to play around bool.
skuf's solution
wow finally started to catch up on this oneliner thing, patience pays off I guess =D
I decided to perform this task without the "replace" function. I decided to complicate my task