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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.
Sorry, but that's the moment when "functional programming" is taken a bit too literally :P
You don't have to compare the value in the filter to true or false and what's most important, you shouldn't use the
==for that as that is waaay less performant (read about coercion in JS).I did precisely the same trick with the
String(Number(octet)) === octet!