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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.
why?
Never, ever use a single lower case L as a variable name!
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capitalize is a really decent way to solve this kata
Done.
The result should be in the order of the original array with non-four letter words removed. It should preserve the order of the original array. I'll keep this issue open since it should be mentioned in the description.
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