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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.
It would be good to add some additional condition that extra spaces between words should be removed. I.e., my solution, which was accepted, returns ['Abc', '', 'Xyz'] as an output for 'Abc Xyz', there are two spaces between.
Best
TI