From: Dan Diebolt <dandiebolt@...>
Date: 2005-12-22T06:39:20+09:00
Subject: Re: move to front of array

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>That certainly would work (assuming that only one element matches the
condition),
   
  seems to work on multiple matches:
   
  array = %w(a B c d Cool e f G Cool Cooler)
=> ["a", "B", "c", "d", "Cool", "e", "f", "G", "Cool", "Cooler"]
array = array.partition{ |el| el =~ /cool/i }.flatten!
=> ["Cool", "Cool", "Cooler", "a", "B", "c", "d", "e", "f", "G"]

I was uncertain about needing parenthesis before applying flatten but it makes perfect sense:
   
  array = (array.partition{ |el| el =~ /cool/i }).flatten!

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