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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.
Probably. I also didn't know if the test suite contained any input that was downcased ("3c" vs. "3C"). I preferred to be safe and convert any input to the same case.
Wouldn't be better solution to use upcase as the keys in the hash? In this case it's not necessary to use 'downcase'
My keys are downcased, I need to compare case to case. I could have also used upcase as the keys in the hash.
why do you use downcase?
it's too tricky