Expanding array as function arguments - RUBY

On Dec 5, 2007 1:43 PM, Witold Rugowski <rugowski@nhw.pl> wrote:
> Hi!
> I wonder if it is possible to expand array as function arguments. Like
>
> def foo( a, b, c)
> end
>
> foo [1,2,3].to_args
>
>
> Is possible to do it?

foo *[1,2,3]

(
similar to grouping several arguments into an array if method definition:

def foo(*args)
end

foo 1, 2, 3
)

--=20
Sergio Gil P=E9rez de la Manga
e-mail > sgilperez@gmail.com
blog > http://www.lacoctelera.com/porras

2007/12/5, Witold Rugowski <rugowski@nhw.pl>:
> Hi!
> I wonder if it is possible to expand array as function arguments. Like
>
> def foo( a, b, c)
> end
>
> foo [1,2,3].to_args
>
>
> Is possible to do it?

foo *[1,2,3]

robert

--
use.inject do |as, often| as.you_can - without end

> Hi!
> I wonder if it is possible to expand array as function arguments. Like
>
> def foo( a, b, c)
> end
>
> foo [1,2,3].to_args
> Is possible to do it?

How about foo *[1, 2, 3] ? (Note the "*" -"splat").


--
Regards,
Rimantas
--
http://rimantas.com/

Sergio Gil Pérez de la Manga wrote:
> foo *[1,2,3]
>
> (
> similar to grouping several arguments into an array if method
> definition:
>
> def foo(*args)
> end
>
> foo 1, 2, 3
> )

Thnx a lot
--
Posted via http://www.ruby-forum.com/.

On Dec 5, 7:13 am, Witold Rugowski <rugow...@nhw.pl> wrote:
> Sergio Gil Pérez de la Manga wrote:
>
> > foo *[1,2,3]
>
> > (
> > similar to grouping several arguments into an array if method
> > definition:
>
> > def foo(*args)
> > end
>
> > foo 1, 2, 3
> > )
>
> Thnx a lot
> --
> Posted viahttp://www.ruby-forum.com/.

A note on splat; it can be used to both gather and unpack elements,
depending on the context. For example...

def baz(a, b, c)
p a, b, c
end
def foo(*bar) # gathering - bar = [1, 2, 3]
baz(*bar) # unpacking - bar = 1, 2, 3
end
foo(1, 2, 3)

Regards,
Jordan