Comments on: Empty Variables

By: Nelson Kelem

Nelson Kelem — Mon, 23 Jan 2012 12:49:48 +0000

0 and “0″ are true always. Nothing is true as well as null. Everything in Ruby is an object. It either contains something or ‘nothing’. You just check for what is in it.
So 0.blank? will evaluate to TRUE if its indeed blank or to FALSE if it contains something.

Remember you are just checking for whether or not it has content. I think it uses “`0.length >= 0“`

By: jesica

jesica — Wed, 18 Jan 2012 10:31:19 +0000

Thanks for sharing such a nice info.

By: Tel zoznam

Tel zoznam — Tue, 06 Dec 2011 17:25:44 +0000

Tel zoznam…

[...]Rails for PHP Developers – Empty Variables[...]…

By: Dividend Tax

Dividend Tax — Fri, 30 Sep 2011 17:48:59 +0000

Thanks for sharing such a useful information sharing.

By: Opensource Deveploment

Opensource Deveploment — Thu, 09 Jun 2011 12:54:36 +0000

You explained the concept of zero in a neat way. Thanks for such a great information. I was wondering for some information about ruby.Your post helped me well.

By: web development

web development — Mon, 06 Dec 2010 06:17:48 +0000

I am looking for such type of informative news and i get through this blog so i am very much thankful to you for sharing such a great information.

By: hotels in great barrington

hotels in great barrington — Wed, 01 Dec 2010 09:04:50 +0000

nice information about ruby on rails and really helpful one for php developers.

By: PHP Development India

PHP Development India — Tue, 12 Oct 2010 05:22:43 +0000

Most of developers face the same problem when they switch the progamming from PHP to Rails.Thanks for sharing the difference between PHP and Rails empty variables.

By: Woodworking Machinery

Woodworking Machinery — Wed, 06 Oct 2010 09:50:12 +0000

Nice rails

Thanks it is useful

By: Nirmik

Nirmik — Sat, 04 Sep 2010 13:36:26 +0000

It is really great