[Ruby] hash key order

[Fruchterman, Thomas]

It's easy to write an Ordered Hash. There is a "calculations" plugin that includes one.
http://wiki.rubyonrails.org/rails/pages/Calculations+Plugin
 

-----Original Message-----
From: ruby-bounces at zenspider.com [mailto:ruby-bounces at zenspider.com] On Behalf Of Ryan Davis
Sent: Friday, February 23, 2007 10:54 AM
To: Seattle Ruby Brigade!
Subject: Re: [Ruby] hash key order


On Feb 23, 2007, at 1:40 PM, ben wiseley wrote:

> Can you depend on the order of keys in a hash in Ruby?
>
> Example:
> h = {:one => "one", :two => "two"}
>
> Will h.keys.first always be :one or can't you depend on that?

Hashes are unordered collections. You can't depend on the order of the contents at all.


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