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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.
The test only tests the first item of the output. Which means, you can just match the first hashtag (if there's any) and pass all the tests.
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Needs random tests
Expected: [], instead got: ["wha"]
I'm at a loss as to how to pass this test without knowing the input...
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Expected: 0, instead got: 1
10 Passed
1 Failed
I wonder, what is for '0', as it is expected by the 11th test?