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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.
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I got an error for a test case that was supposed to be correct.
This is a summary of my work:
Original array: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
Number: 2
New array with evens: [ 0, 2, 4, 6, 8, 10 ]
Returned array: [ 8, 10 ]
But I got this error => expected [ 8, 10 ] to deeply equal [ -8, 26 ], but there is no '-8' or '26' in the original array