Re: "Put" in Ruby

From	Sebastian Christ <rudolfo.christ@gmail.com>
Newsgroups	comp.lang.ruby
Subject	Re: "Put" in Ruby
Date	2016-04-15 20:57 +0200
Organization	Aioe.org NNTP Server
Message-ID	<m2inziaeew.fsf@gmail.com> (permalink)
References	<d720c9a9-3943-45d9-83a1-ff3cf224aaef@googlegroups.com>

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On 2016-04-15 8:23, Cai Gengyang <gengyangcai@gmail.com> wrote:
 > First off, puts is not a function. It's sole purpose is to have a
 > side-effect (printing something to the console), whereas functions
 > cannot have side-effects ... that's the definition of "function",
 > after all.
 > 
 > Ruby doesn't have functions. It only has methods. Thus, puts is a method.
 > 
 > Is this true ? So basically, 'puts' is just a "thing" to enable printing something to the console ...

irb(main):001:0> RUBY_VERSION
=> "2.3.0"
irb(main):002:0> puts.class

=> NilClass
irb(main):003:0>

Looks like `puts' is an instance of NilClass. And therefore an object.

Regards,
Sebastian

-- 
Sebastian (Rudolfo) Christ
http://rudolfochrist.github.io
GPG Fingerprint: 306D 8FD3 DFB6 4E44 5061
                 CE71 6407 D6F8 2AC5 55DD

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Thread

"Put" in Ruby Cai Gengyang <gengyangcai@gmail.com> - 2016-04-15 08:23 -0700
  Re: "Put" in Ruby Sebastian Christ <rudolfo.christ@gmail.com> - 2016-04-15 20:57 +0200
    Re: "Put" in Ruby Robert Klemme <shortcutter@googlemail.com> - 2016-04-16 01:45 +0200
      Re: "Put" in Ruby Sebastian Christ <rudolfo.christ@gmail.com> - 2016-04-16 11:52 +0200
        Re: "Put" in Ruby Robert Klemme <shortcutter@googlemail.com> - 2016-04-16 13:40 +0200
  Re: "Put" in Ruby Robert Klemme <shortcutter@googlemail.com> - 2016-04-16 01:50 +0200
  Re: "Put" in Ruby Kaz Kylheku <545-066-4921@kylheku.com> - 2016-04-16 01:39 +0000

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