From: Chris Hulan <chris.hulan@...>
Date: 2010-03-20T21:40:32+09:00
Subject: Re: Question about the evaluation of x = 'foo' if false

On Mar 17, 12:01 pm, Aníbal Rojas <anibalro...@gmail.com> wrote:
> Hello,
>
>    I am kind of lost with the nil result while I am expecting a false:
>
> irb(main):001:0>  x = 'foo' if false
> => nil
> irb(main):002:0> x
> => nil
> irb(main):003:0>  x = 'foo' if true
> => "foo"
> irb(main):004:0> x
> => "foo"
>
>    Thanks in advance for sharing your knowledge,
>
> --
> Anìbal Rojas

See http://www.ruby-doc.org/docs/ProgrammingRuby/html/tut_expressions.html#UH
'if' doesn't return the logical value it evaluates, it returns the
value of the last statement
executed, in the false case nothing is executed, and nil is Ruby's
nothing value

Cheers