From: Dave Thomas <Dave@...>
Date: 2002-06-08T06:14:07+09:00
Subject: Re: precedence of =, and, or

"Volkmann, Mark" <Mark.Volkmann@AGEDWARDS.com> writes:

> I'm fairly new to Ruby.  I was surprised to read that a = b or c
> will assign b to a, then perform a logical or of a and c.  I
> expected the precedence of and/or to be higher than = so that it
> would perform a logical or of b and c, then assign the result to a.

'or' and 'and' are statement level joiners, while '||' and '&&' are
for expressions. It lets you write

   a = b or fail "b is not true"

or even

   a = b || c or fail "nothing is true anymore"



Dave