From: will <will.graduate@...>
Date: 2006-12-28T15:46:23+09:00
Subject: Re: newbie with a weird technical problem (@ least I think it's weird)

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Thanks All!!!

Special thanks out to Morton and Phrogz for the extra, very handy, tips!!

On 12/27/06, Phrogz <gavin@refinery.com> wrote:
>
> will wrote:
> > book = Book.new("Ruby Tutorial", "Dave", 831)
> > book.inspect
>
> Others have mentioned the need to output the value you are returning,
> and have suggested:
>   puts book.inspect
> as a way to see that information. I just wanted to add the suggestion
> that the 'p' method:
>   p book
> automatically calls #inspect on the object(s) passed, and then spits
> them to stdout like puts does. (For comparison, the puts method calls
> #to_s on the object(s) passed.) 'p' is very convenient when developing
> and testing out your application, as the output sometimes gives you
> more insight into the actual format of the data...particularly for
> arrays:
>
>   irb(main):001:0> a = [ 1, '2', [ '3 4', 5 ], 6 ]
>   => [1, "2", ["3 4", 5], 6]
>
>   irb(main):002:0> puts a
>   1
>   2
>   3 4
>   5
>   6
>   => nil
>
>   irb(main):003:0> p a
>   [1, "2", ["3 4", 5], 6]
>   => nil
>
> As you can see from that first line, it's the result of #inspect that
> irb uses when outputting the result of the last command. (Both puts and
> p return nil when finished, which is where those two "=> nil" lines
> come from in irb.)
>
>
>


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