[#393742] Getting the class of an object. — Ralph Shnelvar <ralphs@...32.com>

Consider;

14 messages 2012/03/06

[#393815] arcadia IDE requires tcl/tk and ruby-tk — Thufir Hawat <hawat.thufir@...>

which or where tcl and tk does arcadia require? Is this a gem which I

13 messages 2012/03/13

[#393952] What’s the best way to check if a feature/class has been loaded? — Nikolai Weibull <now@...>

Hi!

18 messages 2012/03/21
[#393953] Re: What’s the best way to check if a feature/class has been loaded? — Xavier Noria <fxn@...> 2012/03/21

Active Support has recently added qualified_const_* methods to Module

[#393954] Re: What’s the best way to check if a feature/class has been loaded? — Xavier Noria <fxn@...> 2012/03/21

Ah, that won't work in 1.8.

[#393959] Re: What’s the best way to check if a feature/class has been loaded? — Nikolai Weibull <now@...> 2012/03/21

On Wed, Mar 21, 2012 at 16:43, Xavier Noria <fxn@hashref.com> wrote:

[#393960] Re: What’s the best way to check if a feature/class has been loaded? — Xavier Noria <fxn@...> 2012/03/21

On Wed, Mar 21, 2012 at 8:17 PM, Nikolai Weibull <now@bitwi.se> wrote:

[#393961] Re: What’s the best way to check if a feature/class has been loaded? — Nikolai Weibull <now@...> 2012/03/21

On Wed, Mar 21, 2012 at 20:48, Xavier Noria <fxn@hashref.com> wrote:

[#393962] Re: What’s the best way to check if a feature/class has been loaded? — Xavier Noria <fxn@...> 2012/03/21

On Wed, Mar 21, 2012 at 9:51 PM, Nikolai Weibull <now@bitwi.se> wrote:

[#393967] Re: What’s the best way to check if a feature/class has been loaded? — Nikolai Weibull <now@...> 2012/03/22

On Wed, Mar 21, 2012 at 22:11, Xavier Noria <fxn@hashref.com> wrote:

[#393969] Re: What’s the best way to check if a feature/class has been loaded? — Xavier Noria <fxn@...> 2012/03/22

On Thu, Mar 22, 2012 at 6:15 AM, Nikolai Weibull <now@bitwi.se> wrote:

[#394154] uninitialized constant SOCKSSocket — Resident Moron <lists@...>

I am running ruby 1.9.3 on a linux box. I would like to use

10 messages 2012/03/29

[#394160] Why z = Complex(1,2) rather than z = Complex.new(1,2)? — Ori Ben-Dor <lists@...>

What's this syntax, z = Complex(1,2), as opposed to z =

14 messages 2012/03/29

[#394175] shoes no such file to load -- rubygems — Mr theperson <lists@...>

I have installed shoes to develop GUI applications but when I try and

13 messages 2012/03/29

[#394201] Can't open url with a subdomain with an underscore — Jeroen van Ingen <lists@...>

I try to open the following URL: http://auto_diversen.marktplaza.nl/

10 messages 2012/03/30

[#394222] Ruby openssl ECC help plz — no name <lists@...>

I am confused on how to properly export public ECC key. I can see it

13 messages 2012/03/31

Re: Why z = Complex(1,2) rather than z = Complex.new(1,2)?

From: Robert Klemme <lists@...>
Date: 2012-03-30 11:04:07 UTC
List: ruby-talk #394202
Jan E. wrote in post #1054047:
> Eric Hodel wrote in post #1054029:
>>
>> I've never heard that there was a convention to avoid capitalizing
>> method names, and I've been doing this a long time.
>
> This convention is in the Ruby book by Matz and Flanagan, saying that
> uppercase method names can be confused with constants (which is a bad
> thing in my opion).

Well, but there are only few cases of this plus in this case Complex() 
and Complex actually mean the same thing.

> So it's not that we made this up. ;-)

Everything should be taken with a grain of salt.

> In Netbeans I even get a warning:
>
> "Style: Method names traditionally use lowercase letters only"

Do you get that at the calling site or at the definition site?

> But it's not so much about conventions. These methods are simply
> counterintuitive. When I want to convert objects, the first thing that
> comes to my mind are the to_... methods. But I don't expect someone to
> pull a magical conversion "function" out of the Kernel module. Honestly,
> I think even experienced Ruby programmers are confused when they first
> see something like Float(4)

No, not at all.  An experienced Ruby programmer will identify this 
immediately as a method call.  And he will probably do

~$ ruby19 -e 'p method(:Float)'
#<Method: Object(Kernel)#Float>

And then do

ri19 Kernel#Float

But you do not have to use that method.

> Another problem is that constants and methods have different lookup
> algorithms, which doesn't allow you to put the conversion method for a
> subclass into the same containing module/class (unless you use qualified
> names all the time).

Can you show an example of what you cannot do?  At the moment I don't 
see the limitation.

> All in all, I think those methods really qualify as "Ruby warts" and
> should be removed as soon as possible. ;-)

There are far worse "warts" as you call them, for example class 
variables.

Kind regards

robert

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