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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.
You have to change the assert_equals to assertEquals, as that is the function in JavaScript. It's an error on the kata maker's part.
I kept getting unknown errors when trying to submit a solutions that had passed the test cases.
Frustrated, I gave up and skipped to see the solutions. Surprisingly I had the same solution as many others.
I went back and copy-pasted solutions that had already passed into the exercise, and I still got unknown errors when trying to submit.
My program passes the test cases, but when trying to submit the actual answer I get "unknown error" in return.