From: "Jesús Gabriel y Galán" <jgabrielygalan@...>
Date: 2008-04-15T17:57:20+09:00
Subject: Re: noob 'why doesn't this work' question

On Tue, Apr 15, 2008 at 2:14 AM, Vincent Angeloni <nospam7272@mac.com> wrote:

>  Basically, I'm trying to get a list of files/folders along with
>  a separate list of the sizes of said files. The array deletions
>  I asked about would be the deletion of files enclosed in folders
>  from the original file list and using the position of the items
>  in the file list to delete the corresponding array position in
>  the separate size list of those files.

Another solution could be, instead of having 2 arrays, to have
a single array where each position contains all the info for
a file, maybe like an array or hash, and then delete based on
the size info. Example:

file_info = [["a.txt", 123], ["b.txt", 10000]]
file_info.delete_if {|x| x[1] > 1000}

will delete all entries whose size is bigger than 1000.

As a hash:

file_info = [{:name => "a.txt", :size => 123}, {:name => "b.txt",
:size => 10000}]
file_info.delete_if {|x| x[:size] > 1000}

or you could have a custom object if you need more complex modelling
of the file info.

Hope this helps,

Jesus.