From: Rick DeNatale <rick.denatale@...>
Date: 2008-05-27T21:12:53+09:00
Subject: Re: Directionality of comparasion operators

On Tue, May 27, 2008 at 7:34 AM, Tobias Weber <towb@gmx.net> wrote:
> Hi,
> maths says that the value of expressions like x == y and y == x is
> always equal. And indeed most programmers wouldn't think twice about
> using x < y instead of y > x (except maybe those versed in machine
> language...).
>
> But direction does matter in ruby, where operators are just messages
> sent to the left operand. This often bites me when using ===.

=== is not, and is not intended to be the same as ==, nor is it
intended to be symmetrical.

-- 
Rick DeNatale

My blog on Ruby
http://talklikeaduck.denhaven2.com/