From: Charlie <peckcharlie@...>
Date: 2006-05-06T02:07:04+09:00
Subject: Re: Constant in Ruby.

>   >> A = "foo"
>   => "foo"
> 
>   >> A.object_id
>   => 1661894
> 
>   >> X = A
>   => "foo"
> 
>   >> A.object_id
>   => 1661894
> 
>   >> X.object_id
>   => 1661894
> 
>   >> A << "bar"
>   => "foobar"
> 
>   >> A.object_id
>   => 1661894
> 
>   >> X.object_id
>   => 1661894
> 
>   >> X
>   => "foobar"
> 
> Jacob Fugal

Okay, just one more go ...

A = "Foo"           => "Foo"
A.object_id         => 29971016
B = A               => "Foo"
B.object_id         => 29971016
A.freeze            => "Foo"
B << "Bar"
TypeError: can't modify frozen string
	from (irb):7:in `<<'
	from (irb):7
	from :0


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