From: Logan Capaldo <logancapaldo@...>
Date: 2005-12-22T05:33:48+09:00
Subject: Re: move to front of array


On Dec 21, 2005, at 3:08 PM, Payton Swick wrote:

> Hi,
>
> I have an array of Strings, and I'd like to find one of the items  
> by Regexp, then move that item to the front of the array, eg:
>
> array = %w(a B c d Cool e f G)
> array.unshift(array.slice!(array.index(array.find { |i| i =~ /cool/ 
> i }))) if array.find { |i| i =~ /cool/i }
>
> Better/cleaner/shorter ways to do it?
>
> -Payton
>

I don't know about shorter but...

require 'enumerator'
array = %w(a B c d Cool e f G)
index = array.to_enum(:each_index).find { |i| array[i] =~ /cool/i }
array.unshift( array.delete_at( index ) )