From: Tobias Weber <towb@...>
Date: 2008-05-27T20:34:16+09:00
Subject: Directionality of comparasion operators

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 ===.

Have you had bugs fixable by rotating an expression?

-- 
  Tobias Weber