From: darren kirby <bulliver@...>
Date: 2006-08-26T04:11:26+09:00
Subject: Re: What does *var mean?

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quoth the darren kirby:
> quoth the Chih-Chao Lam:
> > Apologies for a newbie ruby question:
> >
> > I know an asterisk can precede a parameter in the argument list of a
> > method definition as in
> >
> > def varargs(arg1, *rest)
>
> def varargs(arg1, *rest)
>   puts arg1
>   rest.each |arg|
>     puts arg
>   end
> end
>
> > varargs(one, two, three, four, five)
>
> one
> two
> three
> four
> five
>
>
> Really, it just accumulates a variable amount of arguments and presents
> them in the function as a list.
>
> **kwargs will collect them in a hash.

Sorry guy, I guess you know that. I am not sure about the other form but it=
=20
appears to be syntactic sugar for building lists:

irb(main):001:0> *d =3D 1,2,3,4,5
=3D> [1, 2, 3, 4, 5]

> > Thanks,
> > chao
>

 -d

=2D-=20
darren kirby :: Part of the problem since 1976 :: http://badcomputer.org
"...the number of UNIX installations has grown to 10, with more expected..."
=2D Dennis Ritchie and Ken Thompson, June 1972

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