[#401849] If statement — Masoud Ahmadi <lists@...>

Will anyone be able to point out what I am doing wrong.

15 messages 2012/12/02

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So, basically, I'm trying to get the below code to work properly for

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[#402012] Need help to select some listbox item in different listbox together — Jonathan Masato <lists@...>

Hello,

10 messages 2012/12/07

[#402045] if n belongs to set a and m belongs to set b repeat some steps, How? — "zubair a." <lists@...>

We can do so in java and similar languages like:

11 messages 2012/12/08

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I am doing something that not many do, I am writing a database driver

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[#402145] How I can create/extract a variable/hash into the current binding in Ruby? — Ramon de C Valle <rcvalle@...>

Hi,

12 messages 2012/12/12

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Hi everyone!,

35 messages 2012/12/15
[#402207] Re: Wondering About Flatiron School — Chad Perrin <code@...> 2012/12/15

On Sat, Dec 15, 2012 at 11:51:08AM +0900, Kevin Y. wrote:

[#402214] Ruby quick reference arranged in ASCII sequence? — Old Grantonian <lists@...>

As a ruby beginner, I would be grateful for any links to a ruby

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I'm a Ruby Newbie trying to write a program to process thousands of HTML

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Hello all,

37 messages 2012/12/19
[#402342] Re: Perl to Ruby: regex captures to assignment. — "Derrick B." <lists@...> 2012/12/20

First of all, thanks for the fast responses!

[#402352] Re: Perl to Ruby: regex captures to assignment. — Robert Klemme <shortcutter@...> 2012/12/20

On Thu, Dec 20, 2012 at 1:38 AM, Derrick B. <lists@ruby-forum.com> wrote:

[#402357] Re: Perl to Ruby: regex captures to assignment. — "Derrick B." <lists@...> 2012/12/20

Robert Klemme wrote in post #1089733:

[#402359] trying to strip characters from a line — Paul Mena <lists@...>

I'm reading a table from a MySQL database and then processing it row by

18 messages 2012/12/20

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$ irb

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Hi,

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23 messages 2012/12/25

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How well respected is this certification in the industry: Ruby

27 messages 2012/12/27
[#402528] Re: Ruby Association Certified Ruby Programmer — Peter Hickman <peterhickman386@...> 2012/12/27

On 27 December 2012 01:28, Sean Westfall <lists@ruby-forum.com> wrote:

[#402555] numeric? — Brandon Weaver <keystonelemur@...>

I've found a bit of an annoyance trying to find out if a number is numeric

20 messages 2012/12/27

[#402580] Ruby Koans regarding Hashes. — "Derrick B." <lists@...>

I am trying to understand this, so let me know how I do. :) I know

18 messages 2012/12/28

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I'm stuck on the new version at trying to do something very simple.

10 messages 2012/12/28

[#402642] require "test/unit" — "Mattias A." <lists@...>

Hi,

17 messages 2012/12/29
[#402667] Re: require "test/unit" — "Mattias A." <lists@...> 2012/12/31

Hi Dami=C3=A1n M. Gonz=C3=A1lez!

[#402747] Re: require "test/unit" — "Derrick B." <lists@...> 2013/01/04

Mattias A. wrote in post #1090700:

[#402749] Re: require "test/unit" — sto.mar@... 2013/01/04

Am 04.01.2013 19:48, schrieb Derrick B.:

by value - by reference, circular reference

From: Michael Sas <lists@...>
Date: 2012-12-15 17:15:07 UTC
List: ruby-talk #402223
Hi,

i have a circular reference between two classes. Initialize of one needs
the other. Small example:

A.new b_instance
B.new a_instance

So I thought I could do:

a = A.new nil
b = B.new a
a = A.new B

The attached valuedemo.rb contains a executable example of how i tried
to do and shows the problem. It also showes where i get confused about
call by value or call by reference.

As I understand param in the example is not equal but the same to
@param. So param and @param are references to the same object, rather
identical copies of an object. So if the value changes in one place, it
should change every where.
It doesn't, so its clear my understanding is wrong.

I would be happy about general advice on solving circular references
too.

Attachments:
http://www.ruby-forum.com/attachment/7971/valuedemo.rb


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