From: coolgeng coolgeng <coolgeng410@...>
Date: 2008-03-06T18:08:06+09:00
Subject: Re: Erratic result

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Yeah, it does work. But I really want to know what does it happen?
such as "puts  digits.each {|digit| dial(digit) }"
  or "digits.each {|digit| dial(digit) }"

the former will print the digits value at the last line,but the latter will
not


On Thu, Mar 6, 2008 at 5:01 PM, Jes=FAs Gabriel y Gal=E1n <
jgabrielygalan@gmail.com> wrote:

> On Thu, Mar 6, 2008 at 9:49 AM, coolgeng coolgeng <coolgeng410@gmail.com>
> wrote:
> > Hi
> >   I do not know how to explain the different result between the two
> >  snippets:
> >    First snippet:
> >       def dial(digit)
> >          puts digit end
> >   digits =3D 0..9
> >   puts  digits.each {|digit| dial(digit) }
>
> >  Why did the first snippet will generate the word like "0..9" at last
> line?
>
> Because you are calling puts with the result of the each method, which
> in this is the range.
> Take into account that .each will run the block yielding each element,
> and then will return something.
> You can remove the last puts:
>
> def dial(digit)
>  puts digit
> end
> digits =3D 0..9
> digits.each {|digit| dial(digit) }
>
> Jesus.
>
>


--=20
Best Regards
Cooper Geng

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