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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.
gracias
estaba perdido
las funciones no las agarra
jeje ta difícil para
when a parantheses is added, the function is executed with whatever argument is passed to it
when a paranthesis is not present, the function reference is sent to the callable (in this case
upper_case
It doesn't need () at the end? str.upper()
Genial aun no hablo´ingles
no entiendo