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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's a great exercise, but I think it should be labeled as 7 or 6 kyu.
It's clever, but I think you could exclude the "else" from the statement, since "return" ends the function execution.
It would increase readability.
I liked it a lot. I'm not used to using JavaScript object and even less prototype property.
Oh, I see. I am not from Portugal. I am brazilian. Anyway, my mother language is portuguese.
Sorry, I didn't understand what you asked.