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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 filter twice ? you could just iterate over the array one time and store your odds and evens. check my solution.
Same solution as mine, except you don't need to split the string since you can just iterate over a string using a for or a for of loop.
This comment is hidden because it contains spoiler information about the solution