From: Chad Perrin <code@...>
Date: 2010-08-22T01:40:23+09:00
Subject: Re: A small problem for arrays

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On Sun, Aug 22, 2010 at 01:00:54AM +0900, Unc88 Unc88 wrote:
> Can do the subtraction of arrays without using the operator "-"?
> Is there a standard method in the class Array?

The method is `-`, and using it as an infix operator is just syntactic
sugar.  If you want it to look like standard .method syntax, do this:

    > ar_3 =3D ar_1.-(ar_2)
    =3D> [1, 2, 3, 8, 9, 10]

Of course, the parentheses are optional:

    > ar_3 =3D ar_1.- ar_2
    =3D> [1, 2, 3, 8, 9, 10]

--=20
Chad Perrin [ original content licensed OWL: http://owl.apotheon.org ]

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