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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.
This test passes because the
sum
variable has an initial value of 0.If we assume
number
is negative, it would not meet thefor
loop's conditioni < number
, so the loop would not run.Since the loop doesn't run,
sum
still has a value of 0, which is then returned as the result.