Question

I am trying to write a module in ruby and whenever i use a comparison operator i get the above error. none of the operators work.

if self.health >= opponent.health
        [:attack, opponent]
    else
        [:rest]
    end

Please let me know if I’m doing some kind of a mistake.

Thanks!

Answer 1

>= can be used only with Comparable objects. Your error message indicates that self.health is nil. You need to have a Comparable object for both self.health and opponent.health, and further have comparison defined between them.