[#396148] Facebook Group — Moses Aronov <mosesaro@...>

There is a facebook group that was recently created so we could all communicate with other fellow developers

13 messages 2012/06/05
[#396178] Re: Facebook Group — Chad Perrin <code@...> 2012/06/06

On Wed, Jun 06, 2012 at 01:55:48AM +0900, Moses Aronov wrote:

[#396186] Inexplicable Argument Error — Doug Jolley <lists@...>

I am encountering a very strange argument error. I simplified my code

12 messages 2012/06/06

[#396229] Thread#kill is not rescued by "rescue Exception" — Iñaki Baz Castillo <ibc@...>

Hi, let me show this easy code:

13 messages 2012/06/07

[#396333] Is "a,b=c,d" atomic? or do I need a Mutex? — Iñaki Baz Castillo <ibc@...>

Hi, I have two methods that could be called by different threads and

10 messages 2012/06/10

[#396357] ffi - Popping image on top of the screen — "Damián M. González" <lists@...>

Ey guys, how are you? I`m developing an application in Ruby, using

12 messages 2012/06/11

[#396373] Why should I learn ruby? — Kasper Steensig <lists@...>

I have wondered whether I should learn ruby or python hence they are

16 messages 2012/06/11

[#396503] Syntax Highlighter — Intransition <transfire@...>

Would you agree that Ruby shouldn't lack for a syntax highlighting library

18 messages 2012/06/14

[#396589] Unsubcripe — Suresh Rajkumar <sureshrajchennai@...>

Unsubcipe my mail address from the group.

13 messages 2012/06/18

[#396615] Symbols and Strings... — Hal Fulton <rubyhacker@...>

Hello, all...

29 messages 2012/06/18
[#396620] Re: Symbols and Strings... — Eric Hodel <drbrain@...7.net> 2012/06/18

On Jun 18, 2012, at 15:09, Hal Fulton wrote:

[#396641] Re: Symbols and Strings... — Robert Klemme <shortcutter@...> 2012/06/19

On Tue, Jun 19, 2012 at 12:31 AM, Eric Hodel <drbrain@segment7.net> wrote:

[#396643] Re: Symbols and Strings... — Hal Fulton <rubyhacker@...> 2012/06/19

Personally, I don't have a problem with "reducing the contract"

[#396646] Re: Symbols and Strings... — Robert Klemme <shortcutter@...> 2012/06/19

On Tue, Jun 19, 2012 at 5:17 PM, Hal Fulton <rubyhacker@gmail.com> wrote:

[#396659] Re: Symbols and Strings... — Hal Fulton <rubyhacker@...> 2012/06/19

> > Freezing an object also reduces its contract.

[#396678] Re: Symbols and Strings... — Robert Klemme <shortcutter@...> 2012/06/20

On Tue, Jun 19, 2012 at 10:12 PM, Hal Fulton <rubyhacker@gmail.com> wrote:

[#396701] Re: Symbols and Strings... — Henry Maddocks <hmaddocks@...> 2012/06/20

[#396702] Re: Symbols and Strings... — Bartosz Dziewoński <matma.rex@...> 2012/06/20

2012/6/20 Henry Maddocks <hmaddocks@me.com>:

[#396703] Re: Symbols and Strings... — Henry Maddocks <hmaddocks@...> 2012/06/20

[#396710] Re: Symbols and Strings... — Jeremy Bopp <jeremy@...> 2012/06/20

On 06/20/2012 03:58 PM, Henry Maddocks wrote:

[#396627] Does ERB have recursive template support? — Todd Wei <lists@...>

I want to use ERB template library to do some code generation. It

10 messages 2012/06/19

[#396649] Looking for a better way to add a method to a core class than monkey patching — Iain Barnett <iainspeed@...>

Hi all,

17 messages 2012/06/19
[#396670] Re: Looking for a better way to add a method to a core class than monkey patching — Avdi Grimm <groups@...> 2012/06/20

Please do not monkey patch core libraries in gems, unless the *purpose* of

[#396685] Benchmark obsession? — "Jan E." <lists@...>

Hi,

23 messages 2012/06/20
[#396709] Re: Benchmark obsession? — Ryan Davis <ryand-ruby@...> 2012/06/20

[#396815] Array#sample is Set#sample and not Array#sample ! — Michel Demazure <lists@...>

Arrays are ordered, sets are not. Sampling an array should give random

11 messages 2012/06/25

[#396877] CSV.open problem, help please — Kaye Ng <lists@...>

This code doesn't seem to work

21 messages 2012/06/27

[#396896] Copying text from MS Word and wrapping in HTML - help please — Adam Holloway <lists@...>

Hi,

11 messages 2012/06/27

[#396966] Interactions between 'new' and 'initialize' ? — Cees Zeelenberg <lists@...>

In JRuby, I am extending an existing Java Class with a Ruby initialising

9 messages 2012/06/28

[#396975] stack level too deep for quicksort code — bei zhao <lists@...>

Hi, below is my quicksort implementation in ruby(using the first element

12 messages 2012/06/28

[#396996] Accessor Methods with a Twist — Doug Jolley <lists@...>

I am surprised that the code shown below returns, 'Doug'. I would

15 messages 2012/06/29

[#397001] ruby performance — anaray anaray <lists@...>

Hi,

33 messages 2012/06/29
[#397007] Re: ruby performance — Bartosz Dziewoński <matma.rex@...> 2012/06/29

The MRI is, unfortunately, slow as balls, and there's not much you can

[#397008] Re: ruby performance — Hans Mackowiak <lists@...> 2012/06/29

Bartosz Dziewo=C5=84ski wrote in post #1066673:

[#397010] Re: ruby performance — Bartosz Dziewoński <matma.rex@...> 2012/06/29

2012/6/29 Hans Mackowiak <lists@ruby-forum.com>:

[#397011] Re: ruby performance — Bartosz Dziewoński <matma.rex@...> 2012/06/29

2012/6/29 Hans Mackowiak <lists@ruby-forum.com>:

[#397047] Re: ruby performance — "Andreas S." <lists@...> 2012/07/01

Bartosz Dziewo=C5=84ski wrote in post #1066681:

[#397048] Re: ruby performance — Bartosz Dziewoński <matma.rex@...> 2012/07/01

2012/7/1 Andreas S. <lists@ruby-forum.com>:

[#397068] Re: ruby performance — Robert Klemme <shortcutter@...> 2012/07/02

On Sun, Jul 1, 2012 at 1:42 PM, Bartosz Dziewo=C5=84ski <matma.rex@gmail.co=

[#397086] Re: ruby performance — Dan Connelly <lists@...> 2012/07/02

Here's my contribution:

Re: New to Ruby - Scope Question

From: Emeka Patrick <lists@...>
Date: 2012-06-21 08:27:01 UTC
List: ruby-talk #396741
Hi Stefano & Gennady,

Thanks for writing back and for your explanations.

I just looked over what I wrote and figured out what happened. When I 
was playing around with this in IRB, I accidentally set both x and y to 
have a value of 10 so when I ran the method square with the argument y, 
I got the same results as I got for argument x and got really confused 
about local variable scope.

Thanks again for taking the time to explain, would have walked away with 
some seriously misguided understanding of local variables.

Stefano Crocco wrote in post #1065482:
> On Thursday 21 June 2012 Emeka Patrick wrote
>> "x.to_s" and puts x*x is by default the variable x, defined above, with
>> a value of 10, correct?  This then means that even though this variable
>> isn't defined within the method it can still be called on from outside
>> the code. However, if the variable was given a value within the method
>> then it wouldn't be available outside of the method, correct?
>>
>> Can someone explain why this is so. I guess I don't NEED to know why,
>> but I'd like to understand it a bit better if possible. Thanks!
>>
>> --
>> Posted via http://www.ruby-forum.com/.
>
> No, the x being referred to in the "x.to_s" expression is not the one
> you set
> to 10 but the one you gave as argument to the square method.
>
> When you define a method, you create a new scope. This means that local
> variables defined outside the method won't be availlable inside the
> method
> body. Also, local variables defined inside the method body (including
> the
> arguments of the method) won't be availlable outside the method itself.
>
> On the other hand, when you define a method which takes some arguments,
> you
> implicitly introduce a local variable for each argument in the scope of
> the
> method body. When the method is called, this variables will be given the
> values you pass as arguments to the method call.
>
> All this means that your method would work exactly in the same way even
> if you
> called the argument with another name (provided, of course, that you
> change
> all references to it to use the new name). For example:
>
> def square(z)
>   puts "within the method z is " + z.to_s
>   puts z*z
> end
>
> I hope this helps
>
> Stefano

-- 
Posted via http://www.ruby-forum.com/.

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