From: Comfort Eagle <steve@...>
Date: 2006-11-14T07:45:22+09:00
Subject: Re: undefined method `string'

Gavin Kistner wrote:
> From: Comfort Eagle
>> Why does this work:
> ...
>>   puts soup.a
> ...
>> but adding .string a la:
> ...
>>   puts soup.a.string
> ...
>> results in:
>> undefined method `string' for nil:NilClass (NoMethodError) ??
> 
> This means that the return value of "soup.a" is nil. Nil is an object in
> Ruby, so:
>   puts nil
> passes a nil object to the 'puts' method. The 'puts' method calls the
> 'to_s' method on the argument(s) passed to it. Nil has a to_s method
> (that returns an empty string), so all is well.
> 
> However, nil does not have a 'string' method, which is the error you are
> getting. Perhaps you are confusing Ruby with another language, and
> actually meant:
>   puts soup.a.to_s
> ?

Perhaps, but soup.a gives me actual results other than nil.  ".a" is a 
rubyful_soup method.

//Hoping I explained that correctly.


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