From: Erwin Abbott <erwin.abbott@...>
Date: 2007-06-11T01:40:48+09:00
Subject: Re: Overloading Array Subtraction operator

On 6/10/07, Yossef Mendelssohn <ymendel@pobox.com> wrote:
> Is that so?  Then why does this work?
>
> irb(main):001:0> %w{a b c} - %w{b}
> => ["a", "c"]
>

Yes, I responded hastily. The rdocs for Array#- don't say how objects
are compared so I made a bad assumption. I only meant to convey it
wasn't being done by comparing values.

Thanks for pointing that out.