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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.
people will understand the power of regular expression by seeing this, it's really amazing, but i don't think this will be encouraged to be in used in production...
i solved it in javascript and i don't think the description is very clear, author can explain a little bit more about the question so the solver can understand it better rather than looking at example solutions and getting confused.
i just realized that people will see the code in a way i never would have thought.