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Last active April 16, 2018 17:55
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Unary Operators for Non-Numeric Objects
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unary_operator.md

Unary Operators for Non-Numeric Objects

It's possible to implement unary operators to an object by defining the -@ and +@ methods within the class declaration

class True
  def -@
    false
  end
  
  def +@
    true
   end
end

t = True.new

p -t
p +t

produces

false
true
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