From: Yossef Mendelssohn <ymendel@...>
Date: 2007-06-11T01:00:39+09:00
Subject: Re: Overloading Array Subtraction operator

On Jun 10, 2:56 am, "Erwin Abbott" <erwin.abb...@gmail.com> wrote:
> The - operator compares objects by their ID, so they aren't removed
> unless they are instances of the same object.

Is that so?  Then why does this work?

irb(main):001:0> %w{a b c} - %w{b}
=> ["a", "c"]

And any number of similar examples.

--
-yossef