From: John Mair <jrmair@...>
Date: 2011-01-09T12:59:15+09:00
Subject: Re: Is singleton class of an object already created?

in YARV and MRI, the singleton class always exists for a class (it is 
created on class creation), but is created lazily for ordinary objects.

Samnang Chhun wrote in post #972157:
> I would like to know is there any ways to check is singleton class of an
> object already created?
>
> ex: obj.singleton_class_defined?

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