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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.
Type declarations in TypeScript should be put in preloaded section and imported, NOT put alongside solution.
...and we have the curious case where the function returns the correct result on my console but it does not returning the correct results in codewars!
Any suggestions?