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.
Maybe change the function nameto follow best practise, like
equal_sum?.As the Safe Navigation Operator,
&deals with the possibility ofnilwhen calling the method on the object – maybe consider&.together here: https://stackoverflow.com/questions/36812647/what-does-ampersand-dot-mean-in-rubywhat does the & do?
This comment is hidden because it contains spoiler information about the solution