From: Garthy D <garthy_lmkltybr@...>
Date: 2013-03-12T13:58:34+09:00
Subject: Re: Confusion with empty block printing


Please elaborate on the ways you have attempted to solve this problem 
yourself, as a basic courtesy to others on this list.

http://www.catb.org/esr/faqs/smart-questions.html#beprecise

Specifically: "Describe the diagnostic steps you took to try and pin 
down the problem yourself before you asked the question."

On 12/03/13 15:11, Love U Ruby wrote:
> here I am making my confusions are more specific:
>
>>> print(1..2).class
> 1..2=>  NilClass
>>> print (1..2).class
> Range=>  nil
>
> Why the below 2 produces different output? How does `IRB` read the
> above?
>
>>> print[].class
> NoMethodError: undefined method `[]' for nil:NilClass
>          from (irb):5
>          from C:/Ruby193/bin/irb:12:in `<main>'
>>> print [].class
> Array=>  nil
>
> How does `IRB` read the above?
>
>>> print{}.class
> =>  NilClass
>>> print {}.class
> =>  NilClass
>
> Why here both lines giving the same outputs unlike the above 2 ?
>