Binary operator with Option arguments

Question

In scala, how do I define addition over two Option arguments? Just to be specific, let\'s say they\'re wrappers for Int types (I\'m actually working with maps of do

Answer 1

(Repeating comment above in an answer as requested)

You don't extract the content of the option the proper way. When you match with case Some(x), x is the value inside the option(type Int) and you don't call get on that. Just do

case Some(x) => x 

Anyway, if you want content or default, a.getOrElse(0) is more convenient