Loading collection data...
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.
LOL.. PHP Unit test not completely checking when $array is null, string, or empty 😂
Didn't like this solution readability-wise.
Nice one!
Ex : [5] is the only element in the array :
5 - (5 - 5)
Details: If array is empty, null or None, or if only 1 Element exists, return 0.
This solution will not retun 0 if only 1 element exists.