[#405207] Does `self` and `scope(local)` operate parallels? — "Kumar R." <lists@...>

I am heavily confused with the topic when thinking `self` and `local

21 messages 2013/03/01
[#405211] Re: Does `self` and `scope(local)` operate parallels? — "Kumar R." <lists@...> 2013/03/01

Just to help experts out there I am clearing my statement once again

[#405242] Confusion in instance method calls of super class from subclass — "Kumar R." <lists@...>

I was just playing to see the instance method calls from the subclass

16 messages 2013/03/02
[#405252] Re: Confusion in instance method calls of super class from subclass — Hans Mackowiak <lists@...> 2013/03/03

YOU DID NOT READ WHAT I WAS WRITTEN:

[#405250] Extending Ruby. Little help or guidance if you are willing! — Cliff Rosson <cliff.rosson@...>

Hi Folk,

21 messages 2013/03/03
[#405393] Re: Extending Ruby. Little help or guidance if you are willing! — nannasin smith <lists@...> 2013/03/06

I've tried to do some reading but some of this is a bit over my head.

[#405549] Re: Extending Ruby. Little help or guidance if you are willing! — Cliff Rosson <cliff.rosson@...> 2013/03/10

Haven't been able to touch this in a week but I had a few minutes to look

[#405550] Re: Extending Ruby. Little help or guidance if you are willing! — Bartosz Dziewoński <matma.rex@...> 2013/03/10

On Sun, 10 Mar 2013 04:41:32 +0100, Cliff Rosson <cliff.rosson@gmail.com> wrote:

[#405600] Re: Extending Ruby. Little help or guidance if you are willing! — Cliff Rosson <cliff.rosson@...> 2013/03/11

Got ya. So it doesn't really matter if I convert things to ID and compare

[#405271] Confusion with Ruby's "case/when" block statement — "Kumar R." <lists@...>

Ruby uses `===` operator on the `case/when` type execution style.Now It

13 messages 2013/03/03

[#405310] How `next` works in ruby with `unless` ? — "Kumar R." <lists@...>

The `next` statement is used to skip a part of the loop and continue

25 messages 2013/03/04
[#405311] Re: How `next` works in ruby with `unless` ? — Joel Pearson <lists@...> 2013/03/04

Learn what semicolons do in Ruby.

[#405312] Re: How `next` works in ruby with `unless` ? — Matthew Kerwin <matthew@...> 2013/03/04

What Joel said.

[#405313] Re: How `next` works in ruby with `unless` ? — "Kumar R." <lists@...> 2013/03/04

Matthew Kerwin wrote in post #1100097:

[#405323] YourLanguageSucks — Kiswono Prayogo <kiswono@...>

Hi, i found this link.. https://wiki.theory.org/YourLanguageSucks

10 messages 2013/03/05

[#405376] When can one call themselves a “Rubyist”? — Rafal Chmiel <lists@...>

I was wondering what that term even meant. Is it something to do with

10 messages 2013/03/05

[#405400] Bignum-Fixnum-Numeric confusion — Pritam Dey <lists@...>

Hi,

13 messages 2013/03/06

[#405444] Question regarding automating some Outlook/IMAP and pdf parsing functions w/ ruby? — Ed Zimmerman <lists@...>

Hello,

20 messages 2013/03/07

[#405477] Compiling Ruby 2.0, problem with OpenSSL — "Piotr P." <lists@...>

Trying to compile Ruby 2.0 from source, having problem with it, getting

10 messages 2013/03/07

[#405495] RubyExcel class. Useful? — Joel Pearson <lists@...>

I've managed to create a (relatively) stable data-processing class which

32 messages 2013/03/08

[#405570] Confusion with block local variable declaration with block variable declaration within the pipe `|` — Love U Ruby <lists@...>

Why are we not allowed to create local variables or new object with

17 messages 2013/03/11

[#405597] Confusion with empty block printing — Love U Ruby <lists@...>

When I typed the below in my IRB:

18 messages 2013/03/11

[#405608] Access values for JSON.parse response — Nicole Villette <lists@...>

Hello, Does anyone know who to get the values from a nested hash in

17 messages 2013/03/11

[#405630] Confusion with some Module methods. — Love U Ruby <lists@...>

Can anyone help me to understand how the below module methods works?

16 messages 2013/03/12

[#405656] Confusion with Strings — Love U Ruby <lists@...>

From the book I read a line about string :

18 messages 2013/03/12

[#405762] Understanding Ruby Classes, Objects and Methods. — Kedar Mhaswade <lists@...>

Dear Rubyists,

12 messages 2013/03/13

[#405931] Finding one's way with 'super' in define_method/alias_emthod — Marcin Rzeźnicki <marcin.rzeznicki@...>

Hi all!

12 messages 2013/03/18
[#405935] Re: Finding one's way with 'super' in define_method/alias_emthod — Robert Klemme <shortcutter@...> 2013/03/18

On Mon, Mar 18, 2013 at 5:50 PM, Marcin Rze=C5=BAnicki

[#405936] Re: Finding one's way with 'super' in define_method/alias_emthod — "Marcin R." <lists@...> 2013/03/18

Robert Klemme wrote in post #1102151:

[#405942] Re: Finding one's way with 'super' in define_method/alias_emthod — Robert Klemme <shortcutter@...> 2013/03/18

On Mon, Mar 18, 2013 at 8:39 PM, Marcin R. <lists@ruby-forum.com> wrote:

[#405986] Ruby tainting on primitives — "Nicolas V." <lists@...>

Hi there,

18 messages 2013/03/20

[#405987] Why was the object_id for true and nil changed in ruby2.0? — Bharadwaj Srigiriraju <lists@...>

irb(main):001:0> true.object_id

11 messages 2013/03/20

[#406015] fixedpnt 0.0.1: Binary Fixed Point Calculations — Axel Friedrich <lists@...>

https://github.com/Axel2/fixedpnt.rb

12 messages 2013/03/20

[#406184] Nokogiri help parsing HTML — Paul Mena <lists@...>

I'm relatively new to Ruby (and therefore Nokogiri) and am trying to

18 messages 2013/03/26

[#406258] Translation Project — Jeremy Henderson <lists@...>

Hello all! This is my first post! I started learning Ruby about 3 weeks

22 messages 2013/03/28

[#406291] Hash with default — Harry Kakueki <list.push@...>

I would like to make a hash like h2 with the default described by h in one

12 messages 2013/03/29

[#406375] Ruby Gotchas presentation slides — Dave Aronson <rubytalk2dave@...>

I recently made available the slides for a presentation I did

13 messages 2013/03/30

[#406387] Private setters can be called by self, why not getters? — Josh Cheek <josh.cheek@...>

class Counter

9 messages 2013/03/31

Re: methods in subclasses

From: Calvin Bornhofen <calvin.bornhofen@...>
Date: 2013-03-08 12:00:50 UTC
List: ruby-talk #405492
Hello,

On 08.03.2013 09:11, john rxjmo wrote:
> No, r180 is not defined in c1, only in the subclass sc1
that's the problem, then. c1 does not know anything about the methods 
you define on it's subclasses. That's just how OOP goes. Think of it 
this way: A Dog is an Animal (class Dog inherits from class Animal). Can 
you make assumptions on what an instance of Dog can do if you have an 
Animal? The Animal class may define a method "walk" (which is then 
available in all subclasses), but if it doesn't define a method "bark", 
how can you call "bark" on an Animal? Inheritance works just one way. (I 
hope my analogy helped you, if not, I'm sorry if I confused you even more..)

To solve your problem you could define @b in your initialize method of 
c2 as an instance of sc1 (because sc1 has a method r180 while c1 does 
not). You could also define a method r180 on c1, although that won't 
give you the behavior you defined in sc1 - at least not if you don't 
copy r180's source from sc1.
Hope I could help!

Kind regards,
Calvin

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