From: Brian Kohl <briankohl@...>
Date: 2008-06-07T23:50:16+09:00
Subject: Re: using portions of other methods in a new method

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Jason,=20

If you want both result_a and result_b to be returned from your counter met=
hod you can easily do that as Ruby allows for any number of elements to be =
returned from a method.=20

change the last line of the counter method to do the following:

return result_a, result_b

Then in your counter method you can have the following:

def counter
    a,b =3D counter
    puts this_b.inject {|sum, element| sum+element}  # total is returned=20
end


Brian
> Date: Sat, 7 Jun 2008 23:17:00 +0900
> From: jason.lillywhite@gmail.com
> Subject: Re: using portions of other methods in a new method
> To: ruby-talk@ruby-lang.org
>=20
> Sebastian Hungerecker wrote:
> > Jason Lillywhite wrote:
> >> I want counter2 method to take the array "b" and do something with it
> >=20
> > There is no array b in your code. b is a number - I think you want the=
=20
> > array
> > result.
> >=20
> > HTH,
> > Sebastian
>=20
> Oh, you are right. Okay now I see what I need thanks to both of you. I=20
> need to set up an array that captures just b alone as shown in my new=20
> code below. My lesson from this is call stuff from other methods by=20
> calling the name of the method and it will get you the last statement of=
=20
> the method. BUT WHAT IF I WANT TO GET MULTIPLE ITEMS FROM THE 'counter'=20
> METHOD? This way only lets you get the last line from the method, but=20
> what if I wanted to grab a "result_b"?
>=20
> class MyArray
>   def counter
>     result =3D []
>     result_b =3D []
>     i =3D 0
>     a =3D 1
>     b =3D 0
>     while i <=3D 5 do
>       a =3D a + 1
>       b =3D b +1.5
>       result << b.to_s + "\t" + a.to_s
>       result_b << b
>       i +=3D 1
>     end
>     result
>     result_b  # will return result_b to caller
>   end
>   def counter2
>     this_b =3D counter  # capture the return value
>     puts this_b.inject {|sum, element| sum+element}  # total is returned=
=20
> to
> caller
>   end
> end
> test =3D MyArray.new
> puts test.counter2
>=20
> --=20
> Posted via http://www.ruby-forum.com/.
>=20

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