From: Fleck Jean-Julien <jeanjulien.fleck@...>
Date: 2009-08-08T00:24:44+09:00
Subject: Re: How can I copy an array and its elements? (call by value)

Hello,

> I'm failing at something really basic: copying an array and its
> contents, so that I can modify the copy without modifying the original.

I think the method 'dup' is what you are looking for

irb(main):001:0> a = [1,2]
=> [1, 2]
irb(main):002:0> b = a.dup
=> [1, 2]
irb(main):003:0> b.delete(1)
=> 1
irb(main):004:0> b
=> [2]
irb(main):005:0> a
=> [1, 2]

Cheers,

-- 
JJ Fleck
PCSI1 Lycée Kleber