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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.
Don't mutate the input string, this behavior isn't normally expected unless specified explicitly.
Not an issue
Not an issue.
This kata is way too simple for a ruby, maybe do something where there is a nested set, and you have to use 2 block / proc objects
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort
"To compare numbers instead of strings, the compare function can simply subtract b from a."
It is not very challenging
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