[#389739] Ruby Challenge — teresa nuagen <unguyen90@...>

Here is a ruby challenge for all you computer science lovers out there,

22 messages 2011/11/05
[#389769] Re: Ruby Challenge — "Jonan S." <jonanscheffler@...> 2011/11/05

Totally unrelated to any husker computer science programs right? Like

[#389905] Re: Ruby Challenge — Stephen Ramsay <sramsay.unl@...> 2011/11/09

Jonan S. wrote in post #1030330:

[#389907] Re: Ruby Challenge — aseret nuagen <unguyen90@...> 2011/11/09

> You mean like the professor for the course? Because that would be me .

[#389915] Re: Ruby Challenge — Robert Klemme <shortcutter@...> 2011/11/09

On Wed, Nov 9, 2011 at 4:52 AM, aseret nuagen <unguyen90@aim.com> wrote:

[#389792] Tricky DSL, how to do it? — Intransition <transfire@...>

I'd want to write a DSL such that a surface method_missing catches

18 messages 2011/11/06

[#389858] Compiling Ruby Inline C code - resolving errors — Martin Hansen <mail@...>

I am trying to get this Ruby inline C code http://pastie.org/2825882 to

12 messages 2011/11/08

[#389928] Forming a Ruby meetup group... — "Darryl L. Pierce" <mcpierce@...>

Where I work we have a local Ruby group that used to meet up, until the

12 messages 2011/11/09

[#389950] The faster way to read files — "Noé Alejandro" <casanejo@...>

Does anybody know which is the fastest way to read a file? Lets say

18 messages 2011/11/09

[#390064] referring to version numbers in a gem — Chad Perrin <code@...>

How do I specify and access a gem's version number within the code of the

28 messages 2011/11/11

[#390238] RVM problem, plz help — Misha Ognev <b1368810@...>

Hi, I have this problem:

15 messages 2011/11/16

[#390308] any command line tools for querying yaml files — Rahul Kumar <sentinel1879@...>

(Sorry, this is not exactly a ruby question).

11 messages 2011/11/18

[#390338] Newbie - cmd question — Otto Dydakt <ottodydakt@...>

I've literally JUST downloaded ruby from rubyinstaller.org.

21 messages 2011/11/19
[#390342] Re: Newbie - cmd question — Otto Dydakt <ottodydakt@...> 2011/11/19

OK thank you, I uninstalled & reinstalled, checking the three boxes at

[#390343] Re: Newbie - cmd question — "Ian M. Asaff" <ian.asaff@...> 2011/11/19

did you type "irb" first to bring up the ruby command prompt?

[#391154] Re: Newbie - cmd question — "Hussain A." <hahmad@...> 2011/12/12

Hi all,

[#391165] Re: Newbie - cmd question — Luis Lavena <luislavena@...> 2011/12/12

Hussain A. wrote in post #1036281:

[#390374] Principle of Best Principles — Intransition <transfire@...>

I seem to run into a couple of design issue a lot and I never know what is

16 messages 2011/11/20

[#390396] how to call Function argument into another ruby script. — hari mahesh <harismahesh@...>

Consider I have a ruby file called library.rb.

10 messages 2011/11/21

[#390496] How to make 1.9.2 my default version using RVM — Fily Salas <fs_tigre@...>

Hi,

25 messages 2011/11/24

[#390535] Is high-speed sorting impossible with Ruby? — "Gaurav C." <chande.gaurav@...>

Well, first of all, I'm new to Ruby, and to this forum. So, hello. :)

39 messages 2011/11/25
[#390580] Re: Is high-speed sorting impossible with Ruby? — Joao Pedrosa <joaopedrosa@...> 2011/11/27

Hi,

[#390593] Re: Is high-speed sorting impossible with Ruby? — "Gaurav C." <chande.gaurav@...> 2011/11/27

Joao Pedrosa wrote in post #1033884:

[#390600] Re: Is high-speed sorting impossible with Ruby? — Douglas Seifert <doug@...> 2011/11/27

A big gain can be had by disabling the garbage collector. Here is my best

[#390601] Re: Is high-speed sorting impossible with Ruby? — Douglas Seifert <doug@...> 2011/11/27

I've thrown various solutions up on github here:

[#390650] Loading a faulty ruby file - forcing this — Marc Heiler <shevegen@...>

Hi.

10 messages 2011/11/29

[#390689] Stupid question — James Gallagher <lollyproductions@...>

Hi everyone.

22 messages 2011/11/30

Re: Newbie:: Understand Constructor Flow.

From: Robert Klemme <shortcutter@...>
Date: 2011-11-07 09:09:09 UTC
List: ruby-talk #389810
On Mon, Nov 7, 2011 at 4:32 AM, Gennady Bystritsky
<gennady-ruby@bystr.com> wrote:
> On Nov 6, 2011, at 7:16 PM, Ankush Ganatra wrote:
>
>> I am a little confused and need some help. I am a newbie for Ruby but i =
think i understand Object Oriented programming a little bit so i got confus=
ed here.
>>
>> I have got 2 classes here
>>
>> 1. CEmployee
>>
>> class CEmployee
>> =A0 =A0 def initialize()
>> =A0 =A0 =A0 =A0 puts "inside CEmployee"
>> =A0 =A0 end
>> end
>>
>> 2. CManager
>>
>> class CManager < CEmployee
>> =A0 =A0 def initialize()
>> =A0 =A0 =A0 =A0 puts "inside CManager"
>> =A0 =A0 end
>> end
>>
>> Now if i create an Object of CManager class (unlike other languages like=
 C++ ) the constructor of it gets called but not the base class "Until i us=
e the super keyword".
>>
>> =A0 =A0 objManager =3D CManager.new
>>
>> Can someone please help me here? And even if the this is supposed to be =
working like this, isn't it something different from the Object Oriented Co=
ncept which says base class constructor always gets called first?
>
> This is how it is supposed to work indeed, in Ruby there's no notion of d=
efault constructor like in C++ (a non-default constructor must be invoked e=
xplicitly even there). With a call to super, a subclass can choose how a su=
perclass constructor is invoked in regards to passed parameters and the ord=
er of statements. Or not to invoke it at all.

Ankush, an additional note: super is different than ordinary method
calls with regard to brackets.  If you just write "super" the complete
argument list of the current method is copied (including block if
passed); regular methods are invoked with empty argument list in this
case.  If you want to explicitly invoke the super class method without
arguments you need to write "super()".  Providing specific arguments
works as well of course: "super(1, 'foo')".

Kind regards

robert

--=20
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/

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