From: Hans Mackowiak <lists@...>
Date: 2013-03-10T05:52:50+09:00
Subject: Re: type casting and connversion in ruby

hm its still a conversion because the type of the objects itself does 
not change.

but Integer() method is cool too, because it has autosupport for hex 
numbers, like:

Integer("0x1a")     #=> 26

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