From: "David A. Black" <dblack@...>
Date: 2005-12-02T00:32:39+09:00
Subject: Re: require!

Hi --

On Fri, 2 Dec 2005, Brian Buckley wrote:

>>    a = [1,2,3]
>>    x(a)      # [[1,2,3,]]
>>    x(*a)     # [1,2,3]
>
> x(*a)  # [1,2,3]
> x(a.to_a)  # also [1,2,3]
>
> But when might the 1st way (using the unary operator) be preferred to
> the more explicit 2nd way?

I did leave off the to_a, though array.to_a is a no-op so it shouldn't
matter.

More to the point: what version of Ruby are you using?  Here's the
output with 1.8.3:

$ cat args2.rb
   def x(*args)
     p args
   end

   a = [1,2,3]
   x(a.to_a)
   x(*a)

$ ruby -v args2.rb 
ruby 1.8.3 (2005-09-21) [powerpc-darwin8.3.0]
[[1, 2, 3]]
[1, 2, 3]


David

-- 
David A. Black
dblack@wobblini.net