Sixeight https://blog.hatena.ne.jp/Sixeight/ ちなみに https://blog.nishimu.land/ ruby http://ujihisa.nowa.jp/entry/62365f7d52どうせならここまでしたい感じ module OOnize def not; !self end def and(other) self && other end def or(other) self || other end end class TrueClass include OOnize end class FalseClass include OOnize end before a = 3 b = 4 if a.odd? && b.odd?.not p 'OK' end after a = 3 b = 4 i… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.nishimu.land%2Fentry%2F20081229%2F1230569355" title="Re: Object-oriented negation operators - ちなみに" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2008-12-29 01:49:15 rich https://blog.nishimu.land/entry/20081229/1230569355 1.0 100%