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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.
my brain hurt bro,what is going on,wth man
ok i got it but i forgot the(start,stop,step) XD
man,really really thank you, i get it now.
because it refers to step. range(start, stop, step)
why you repeat x? can you explain pls, i don´t get it.
What is more performancy - list() or [for in]?