Re: Is everything object ?

From	Justin Collins <justincollins@ucla.edu>
Newsgroups	comp.lang.ruby
Subject	Re: Is everything object ?
Date	2011-04-28 23:37 -0500
Organization	Service de news de lacave.net
Message-ID	<4DBA4062.70101@ucla.edu> (permalink)
References	<62f261dc2ccebf22a5a04124a9b3bc7f@ruby-forum.com>

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On 04/28/2011 02:48 AM, amir e. wrote:
> Hi
> A very important principle in Ruby is that every thing is object.
> I read somewhere that there is no primitive operation in Ruby in
> traditional form and every operation is class.
> Now if every thing is object , then why   + , - , * , ^ , ^^   isn't
> class Although they are primitive operation ?
>
> ps : If you test these codes , error happen : +.class  -.class   *.class

Actually, "everything is an object" is probably a mantra Rubyists should 
drop, because people will get confused when they find they can't call 
methods on every piece of Ruby code.

I would say all values in Ruby are objects and all expressions return a 
value. But there are (admittedly few) things which are not expressions.

The best thing is to not worry too much about absolutes and just enjoy 
exploring.

-Justin

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Thread

Is everything object ? "amir e." <aef1370@gmail.com> - 2011-04-28 04:48 -0500
  Re: Is everything object ? Urabe Shyouhei <shyouhei@ruby-lang.org> - 2011-04-28 04:56 -0500
  Re: Is everything object ? Robert Klemme <shortcutter@googlemail.com> - 2011-04-28 04:59 -0500
  Re: Is everything object ? Roger Braun <roger@rogerbraun.net> - 2011-04-28 04:54 -0500
  Re: Is everything object ? Josh Cheek <josh.cheek@gmail.com> - 2011-04-28 06:52 -0500
    Re: Is everything object ? Roger Braun <roger@rogerbraun.net> - 2011-04-28 10:26 -0500
      Re: Is everything object ? Michael Sokol <mikaa123@gmail.com> - 2011-04-28 10:49 -0500
    Re: Is everything object ? Josh Cheek <josh.cheek@gmail.com> - 2011-04-28 12:23 -0500
      Re: Is everything object ? Josh Cheek <josh.cheek@gmail.com> - 2011-04-28 18:39 -0500
        Re: Is everything object ? Josh Cheek <josh.cheek@gmail.com> - 2011-04-28 23:09 -0500
          Re: Is everything object ? Josh Cheek <josh.cheek@gmail.com> - 2011-04-29 18:01 -0500
    Re: Is everything object ? Brian Candler <b.candler@pobox.com> - 2011-04-28 15:22 -0500
      Re: Is everything object ? Phillip Gawlowski <cmdjackryan@googlemail.com> - 2011-04-28 15:36 -0500
  Re: Is everything object ? 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-28 11:54 -0500
    Re: Is everything object ? 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-28 18:50 -0500
  Re: Is everything object ? Stu <stu@rubyprogrammer.net> - 2011-04-28 14:43 -0500
  Re: Is everything object ? Justin Collins <justincollins@ucla.edu> - 2011-04-28 23:37 -0500

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