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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.
As I said, your
.reduceis not working. JS is weird when it comes to implicitbool -> intconversion, and it's not happenning here.You should return a number, and I'm not sure whether your
.reduceis working correctly (and I don't care enough to look into it).And next time give at least some minimum information concerning your problem except "my code is not working".