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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.
@juliand665 -- ah! you're correct -- that makes sense.
Don't know much about ruby, but I'm pretty sure that's how they're converting the numbers to strings.
I don't know what post you're answering to, but what you're saying is false:
['this is', 'a good example'].join(' ')=>'this is a good example''this is a good example'.split(' ')=>['this', 'is', 'a', 'good', 'example']thus
['this is', 'a good example'].join(' ').split(' ')=>['this', 'is', 'a', 'good', 'example']Why are you doing join(" ").split(" ")?
arr.join(" ").split(" ") == arr