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Date: Tue, 5 Mar 2013 08:30:33 -0800 (PST)
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Subject: what's object_id in irb?
From: Massimo Donati <mass.donati@gmail.com>
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Hi everyone i'm running this lines of code:

[home/] irb
2.0.0p0 :001 > object_id
 => 70156571578960


I can't really understand what is this object_id referred to since is not called from any object?

Thanks very much!
Massimo