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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.
it's good but why wouldn't you just leave some space to make more confortable :)
People often misuse "Best Practise" button. I would rather mark my solution as "Clever" if so.
It is definitely not the best practice. Variable names have to be meaningful and spaces should be used for readability.
This is true, golfed code isn't usually considered easy to read.
Does the job, but it's difficult to read.