From: Albert Schlef <albertschlef@...>
Date: 2008-05-02T18:02:55+09:00
Subject: Extracting a value from an array

I have the following array:

headers = [
  { :name => 'user-agent', :value => 'blah blah' },
  { :name =>'content-type', :value => 'text/html' },
  { :name => 'pragma', :value => 'no-cache' },
  { :name =>'content-length', :value => '30' },
  { :name =>'content-type', :value => 'text/html' },
]

Now, I want to extract the :value of the first header of a specific
:name. For example, I want to extract the :value of the 'content-type'
header.

So I do:

content_length = nil
headers.each { |header|
  content_length = header[:value] if header[:name] == 'content-length'
}

However, this code is not very "beautiful", and I was wondering if
there's some other, more clearer way to do this.

(And it's fine with me if we take the :value of a 'content-type' header
which is not necessarily the first in the array (in the code above I
actually pick the last header). Also, I don't very much mind about
performance because there are a few headers. I'm simply looking for a
clear, straightforward code for this simple task.)
-- 
Posted via http://www.ruby-forum.com/.