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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.
It works perfectly. Please refer to the documentation (just google something like
name_of_the_method name_of_the_language
).It is. But you should read the Javascript documentation (and / or think about the error you receive) because you don't use it properly.
Looks like reverse() isnt a method in the Javascript version.