From: Chris McMahon <christopher.mcmahon@...>
Date: 2007-01-23T07:30:07+09:00
Subject: array equality question


This took me by surprise:

irb(main):001:0> a1 = ['x','y','z']
=> ["x", "y", "z"]
irb(main):002:0> a2 = ['y','z','x']
=> ["y", "z", "x"]

irb(main):008:0> puts "yo" if a1 == a2
=> nil
irb(main):009:0> puts "yo" if a1 != a2
yo
=> nil

I assumed order of elements would not be considered for equality.  Is
there any particular reason for this behavior?