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Phrogz
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0 is not a non-truth value!
      #34209 - 07/18/06 03:40 PM

The example adding the Fixnum#odd? method is incorrect. Unlike C or JavaScript or Java, 0 in Ruby is not a logical false value. Only the Boolean literal "false" and the value "nil" are non-truth values. The example code should be:

Code:
class Fixnum
  def odd?
    self % 2 == 1
  end
end

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Anonymous
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Re: 0 is not a non-truth value! [Re: Phrogz]
      #35685 - 08/23/06 11:52 AM

It should be added that falseness is not limited to the "nil" or "false" literals, but any objects that are instances of FalseClass or NilClass.

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