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Surprise Me!
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By PeterStofferis
via infoq.com
Published: Jul 14 2008 / 13:50

Ruby's Open Classes - Or: How Not To Patch Like A Monkey
Ruby's Open Classes are powerful - but can easily be misused. This article looks at how to minimize the risk of opening classes, alternatives, and how other languages provide similar capabilities.
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daniel replied ago:

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There's really no way to "fix" open classes; they are an inherently broken concept. With that said, they're incredibly useful. :-) I've been guilty of employing them more than once myself. The trick is to use moderation and good sense.

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