From: Alex Young <alex@...>
Date: 2007-11-29T06:02:51+09:00
Subject: Re: *hash is different from hash.to_a?

Trans wrote:
> Has this come up before? I don;t recall. But just the same. Does this
> seem inconsistent to you?
> 
>   irb(main):003:0> a = *{:a=>1}
>   => [:a, 1]
>   irb(main):004:0> a = *{:a=>1,:b=>2}
>   => [[:b, 2], [:a, 1]]
> 
> vs.
> 
>   irb(main):006:0> a = {:a=>1}.to_a
>   => [[:a, 1]]
>   irb(main):007:0> a = {:a=>1,:b=>2}.to_a
>   => [[:b, 2], [:a, 1]]

Not really inconsistent - * unwraps its argument if it can.  Observe:

irb(main):001:0> a = *[1,2]
=> [1, 2]
irb(main):002:0> a = *[1]
=> 1

-- 
Alex