From: Julian Leviston <julian@...>
Date: 2009-02-07T09:22:35+09:00
Subject: Re: Array#to_h

It's fairly trivial, isn't it?

 >> class Array
 >> def to_h
 >> Hash[*self]
 >> end
 >> end
=> nil
 >> [1,2,3,4].to_h
=> {1=>2, 3=>4}
 >>

On 01/02/2009, at 7:03 AM, David A. Black wrote:

> Hi --
>
> On Sun, 1 Feb 2009, Roger Pack wrote:
>
>> Not that I would find it useful at all, but is there is a Hash#to_a
>> should there not be an Array#to_h?
>
> Not if it's not useful :-) It might be, though. It's been talked about
> a lot over the years. As I recall, part of the problem is the question
> of what it would mean; for example, given this:
>
>  ["a","b","c","d"].to_h
>
> is it
>
>  ["a" => "b", "c" => "d"]
>
> or
>
>  [0 => "a", 1 => "b", ....]
>
> ?
>
>
> David
>
> -- 
> David A. Black / Ruby Power and Light, LLC
> Ruby/Rails consulting & training: http://www.rubypal.com
> Coming in 2009: The Well-Grounded Rubyist (http://manning.com/black2)
>
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>