Checking if a variable is not nil and not zero in ruby

Question

I am using the following code to check if a variable is not nil and not zero

if(discount != nil && discount != 0) 
  ...
end

Is the

Answer 1

I prefer using a more cleaner approach :

val.to_i.zero?

val.to_i will return a 0 if val is a nil,

after that, all we need to do is check whether the final value is a zero.