From: "Jan E." <lists@...>
Date: 2012-09-11T00:14:49+09:00
Subject: Re: Why does it work? (variable scope)

Hi,

Local variables are determined purely by the existence of an assignment 
expression in the current scope. It doesn't matter if the assignment is 
ever executed.

Also note that there's *no* difference between "if ... end" and "... if 
..." with regard to the order of evaluation. In both cases the condition 
is evaluated first, and if it evaluates to true, the body is executed.

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