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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.
What is the language?
And also please provide your code.
Your code is wrong, not a kata issue, select Node v8 to see which test your code is failing. Read the error message and add some console.log to help you debug it. The reason it didn't fail somewhere else is you didn't test it there with the same input that makes your code fail here.
Why is my code not working? It says that it is not compiling with the requested results, but testing in the IDE is giving the result as reported. Could someone look at my code and clear this doubt of mine?