[#390749] Why are there so many similar/identical methods in core classes — Kassym Dorsel <k.dorsel@...>

Let's look at the Array class and start with method aliases.

14 messages 2011/12/02

[#390755] Inverse Operation of Module#include — Su Zhang <su.comp.lang.ruby@...>

Hi list,

21 messages 2011/12/02
[#390759] Re: Inverse Operation of Module#include — Ryan Davis <ryand-ruby@...> 2011/12/02

[#390764] Re: Inverse Operation of Module#include — Isaac Sanders <isaacbfsanders@...> 2011/12/02

I would suggest an Adapter pattern use here. IF there is something that has

[#390876] black magical hash element vivification — Chad Perrin <code@...>

Ruby (1.9.3p0 to be precise, installed with RVM) is not behaving as I

12 messages 2011/12/05

[#390918] WEB SURVEY about Ruby Community — Intransition <transfire@...>

Did any one else get this survey request?

14 messages 2011/12/07

[#390976] Confusing results from string multiplication — Rob Marshall <robmarshall@...>

Hi,

19 messages 2011/12/08

[#391019] How can I do h["foo"] += "bar" if h["foo"] does not exist? — "Andrew S." <andrewinfosec@...>

Hi there,

13 messages 2011/12/09

[#391027] reading from file without end-of-lines — Janko Muzykant <umrzykus@...>

hi,

20 messages 2011/12/09
[#391028] Re: reading from file without end-of-lines — Gavin Sinclair <gsinclair@...> 2011/12/09

> i'm trying to read a few text values from single file:

[#391031] Re: reading from file without end-of-lines — Robert Klemme <shortcutter@...> 2011/12/09

On Fri, Dec 9, 2011 at 9:58 AM, Gavin Sinclair <gsinclair@gmail.com> wrote:

[#391042] Re: reading from file without end-of-lines — Gavin Sinclair <gsinclair@...> 2011/12/09

On Fri, Dec 9, 2011 at 8:18 PM, Robert Klemme

[#391135] I need advice on what to do next. — Nathan Kossaeth <system_freak_2004@...>

I am new to programming. I read the ebook "Learn to Program" by Chris

23 messages 2011/12/12

[#391216] perf optimization using profile results — Chuck Remes <cremes.devlist@...>

I need some help with optimizing a set of libraries that I use. They are ffi-rzmq, zmqmachine and rzmq_brokers (all up on github).

13 messages 2011/12/13
[#391218] Re: perf optimization using profile results — Chuck Remes <cremes.devlist@...> 2011/12/13

On Dec 13, 2011, at 9:57 AM, Chuck Remes wrote:

[#391234] Re: perf optimization using profile results — Charles Oliver Nutter <headius@...> 2011/12/14

A couple quick observations.

[#391238] Re: perf optimization using profile results — Chuck Remes <cremes.devlist@...> 2011/12/14

On Dec 13, 2011, at 7:03 PM, Charles Oliver Nutter wrote:

[#391324] ruby 1.9 threading performance goes non-linear — Joel VanderWerf <joelvanderwerf@...>

12 messages 2011/12/16
[#391325] Re: ruby 1.9 threading performance goes non-linear — Eric Wong <normalperson@...> 2011/12/16

Joel VanderWerf <joelvanderwerf@gmail.com> wrote:

[#391420] Accessing class instance variables from an instance? — "Shareef J." <shareef@...>

Hi there,

26 messages 2011/12/20
[#391454] Re: Accessing class instance variables from an instance? — Khat Harr <myphatproxy@...> 2011/12/21

Actually, now that I'm thinking about it the existing behavior sort of

[#391456] Re: Accessing class instance variables from an instance? — Josh Cheek <josh.cheek@...> 2011/12/21

On Tue, Dec 20, 2011 at 9:42 PM, Khat Harr <myphatproxy@hotmail.com> wrote:

[#391545] Kernel#exit raises an exception? — Khat Harr <myphatproxy@...>

While I was working on embedding an interpreter I wrote a function to

13 messages 2011/12/24

[#391618] rvmsh: An easy installer for RVM — Bryan Dunsmore <dunsmoreb@...>

I have recently begun work on a project called [rvmsh]

12 messages 2011/12/29

[#391783] Mailspam — Gunther Diemant <g.diemant@...>

Is there a way to stop this mailspam of Luca (Mail)?

12 messages 2011/12/29

[#391790] What’s the standard way of implementing #hash for value objects in Ruby? — Nikolai Weibull <now@...>

Hi!

23 messages 2011/12/29
[#391792] Re: What’s the standard way of implementing #hash for value objects in Ruby? — Gunther Diemant <g.diemant@...> 2011/12/29

I think you can't access instance variables from a class method, so

[#391793] Re: What’s the standard way of implementing #hash for value objects in Ruby? — Nikolai Weibull <now@...> 2011/12/29

On Thu, Dec 29, 2011 at 15:52, Gunther Diemant <g.diemant@gmx.net> wrote:

[#391811] Re: What’s the standard way of implementing #hash for value objects in Ruby? — Robert Klemme <shortcutter@...> 2011/12/29

On Thu, Dec 29, 2011 at 4:06 PM, Nikolai Weibull <now@bitwi.se> wrote:

[#391812] Re: What’s the standard way of implementing #hash for value objects in Ruby? — Nikolai Weibull <now@...> 2011/12/29

On Fri, Dec 30, 2011 at 00:26, Robert Klemme <shortcutter@googlemail.com> w=

[#391816] Re: What’s the standard way of implementing #hash for value objects in Ruby? — Josh Cheek <josh.cheek@...> 2011/12/30

On Thu, Dec 29, 2011 at 5:47 PM, Nikolai Weibull <now@bitwi.se> wrote:

[#391833] Re: What’s the standard way of implementing #hash for value objects in Ruby? — Robert Klemme <shortcutter@...> 2011/12/30

On Fri, Dec 30, 2011 at 12:47 AM, Nikolai Weibull <now@bitwi.se> wrote:

Re: Noob question regarding custom method

From: "Bharath Reddy" <bharath.reddy@...>
Date: 2011-12-29 09:08:11 UTC
List: ruby-talk #391771
Please unsubscribe from this list.

Regards,
Bharath

-----Original Message-----
From: Luca (Email) [mailto:luca.pagano@email.it]=20
Sent: Thursday, December 29, 2011 12:22 PM
To: ruby-talk ML
Subject: I: Noob question regarding custom method



-----Messaggio originale-----
Da: Junayeed Ahnaf Nirjhor [mailto:zombiegenerator@aol.com]
Inviato: luned=EC 14 novembre 2011 14:17
A: ruby-talk ML
Oggetto: Re: Noob question regarding custom method

On 11/14/2011 06:57 PM, Robert Klemme wrote:
> On Mon, Nov 14, 2011 at 1:29 PM, Sam Rose<samwho@lbak.co.uk>  wrote:
>> "setter" methods that have "set" in the name are far more idiomatic=20
>> of Java. Ruby has a different way of doing this:
>>
>> def miles=3D(new_miles)
>>   @miles =3D new_miles
>> end
>>
>> Which I know wasn't the question, I just felt like mentioning this=20
>> first :)
>>
>> You're right, you could use attr_accessor (or reader or writer,=20
>> whichever suits the purpose best). And in this case, you probably=20
>> would. There's no reason not to. But some setter methods require, for =

>> example, some kind of validation.
>>
>> Say if you didn't want the @miles variable to be less than 0, you=20
>> could
do this:
>>
>> def miles=3D(new_miles)
>>   if new_miles<  0
>>     raise Exception, "Miles cannot be less than 0."
>>   else
>>     @miles =3D new_miles
>>   end
>> end
>>
>> Is this making sense? :)
> Just a stylistic remark: I would code it like this
>
> def miles=3D(new_miles)
>    if new_miles<  0
>      raise Exception, "Miles cannot be less than 0."
>    end
>
>    @miles =3D new_miles
> end
>
> or even
>
> def miles=3D(new_miles)
>    raise Exception, "Miles cannot be less than 0." if new_miles<  0
>
>    @miles =3D new_miles
> end
>
> or
>
> def miles=3D(new_miles)
>    new_miles<  0 and raise Exception, "Miles cannot be less than 0."
>
>    @miles =3D new_miles
> end
>
> Especially with the first variant it is immediately clear what the=20
> main course of action is.  The exception interrupts the regular flow=20
> anyway so there is really no reason for the "else" branch.
>
> Kind regards
>
> robert
>
Thank you robert and sam for answering the question . It helped.

--
Junayeed Ahnaf Nirjhor
/Doing this and that/
http://twitter.com/nirjhor

=20
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SMTP
autenticato? GRATIS solo con Email.it http://www.email.it/f
=20
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centro +
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