# Ruby **URL:** https://www.ruby-forum.com/c/ruby/7.md?page=1294 [Latest](https://www.ruby-forum.com/latest.md) · [Categories](https://www.ruby-forum.com/categories.md) · [Tags](https://www.ruby-forum.com/tags.md) **Page:** 1295 --- ## [Genetic Algorithm and Ruby](https://www.ruby-forum.com/t/genetic-algorithm-and-ruby/120345)
**Author:** [@nSa](https://www.ruby-forum.com/u/nSa)\ **Replies:** 2\ **Last updated:** [November 16, 2007, 5:17am UTC](https://www.ruby-forum.com/t/genetic-algorithm-and-ruby/120345 "2007-11-16T05:17:20Z")
Hi, I am interested in Ruby libraries that could be of help in using/implementing genetic, evolutionary algorithms and, while I did the obvious search: http://www.google.com/search?hl=en&q=Genetic+Algorithm%2Bruby&bt… --- ## [Instance variables as class variable?](https://www.ruby-forum.com/t/instance-variables-as-class-variable/120330)
**Author:** [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Replies:** 3\ **Last updated:** [November 16, 2007, 5:15am UTC](https://www.ruby-forum.com/t/instance-variables-as-class-variable/120330 "2007-11-16T05:15:34Z")
I’m trying to get a handle on why the following code works by printing out ‘frog’ because @x looks like instance variable syntax. I know that some of these things don’t work the way I’d expect. class Test @x = ‘frog… --- ## [Net::HTTP header issue](https://www.ruby-forum.com/t/net-http-header-issue/120279)
**Author:** [@el2king](https://www.ruby-forum.com/u/el2king)\ **Replies:** 3\ **Last updated:** [November 16, 2007, 4:45am UTC](https://www.ruby-forum.com/t/net-http-header-issue/120279 "2007-11-16T04:45:44Z")
I am trying to use custom headers, and I am having an issue with how Net::HTTP handles this. Let’s say I want to add the header “a-header” to the HTTP message I am sending to a server. When I turn on a TCP monitor t… --- ## [Alias\_method :tap, :affect](https://www.ruby-forum.com/t/alias-method-tap-affect/119990)
**Author:** [@joshs](https://www.ruby-forum.com/u/joshs)\ **Replies:** 48\ **Last updated:** [November 16, 2007, 3:10am UTC](https://www.ruby-forum.com/t/alias-method-tap-affect/119990 "2007-11-16T03:10:27Z")
Ruby’s enumeration message names come directly from its Smalltalk ancestry. There are also some aliases. Like so: method alias collect map detect find select find\_all reject inject Ruby 1.9 introduces … --- ## [Toplevel irb method](https://www.ruby-forum.com/t/toplevel-irb-method/120065)
**Author:** [@SASADA\_Koichi](https://www.ruby-forum.com/u/SASADA_Koichi)\ **Replies:** 9\ **Last updated:** [November 16, 2007, 2:26am UTC](https://www.ruby-forum.com/t/toplevel-irb-method/120065 "2007-11-16T02:26:02Z")
e$B!!$5$5$@$G$9!%e(B e$B!!e(Birb e$B$G4X?t$C$\]$$%a%=%C%I$rDj5A$9$k$H!$e(Bpublic e$B%a%=%C%I$K$J$j$^$9!%e(B irb(main):001:0\> RUBY\_VERSION =\> “1.8.5” irb(main):002:0\> def foo; end =\> nil irb(main):004:0\> Object.inst… --- ## [Using a variable with gsub & sub](https://www.ruby-forum.com/t/using-a-variable-with-gsub-sub/120339)
**Author:** [@wpvanpaassen](https://www.ruby-forum.com/u/wpvanpaassen)\ **Replies:** 5\ **Last updated:** [November 16, 2007, 2:17am UTC](https://www.ruby-forum.com/t/using-a-variable-with-gsub-sub/120339 "2007-11-16T02:17:51Z")
In the following statement, I’m replacing , with ,NULL,. $inrec = $inrec.sub(’,\\’,’,NULL,’) What I want to do is something like this: $inrec = $inrec.sub(’,\\’,’,$variable,’) Unfortunately, I haven’t been able to figu… --- ## [Adding Post Data to IE.navigate method with Ruby](https://www.ruby-forum.com/t/adding-post-data-to-ie-navigate-method-with-ruby/120321)
**Author:** [@Bach\_Le](https://www.ruby-forum.com/u/Bach_Le)\ **Replies:** 2\ **Last updated:** [November 15, 2007, 11:40pm UTC](https://www.ruby-forum.com/t/adding-post-data-to-ie-navigate-method-with-ruby/120321 "2007-11-15T23:40:39Z")
Hi all, I’m automating IE with Watir and Ruby and I have a slight problem that I can’t seem to solve. I’d like to pass post data to IE’s navigate method (Navigate method (Internet Explorer) | Microsoft Learn) Seems l… --- ## ["How Classes and Objects Interact" (Pickaxe)](https://www.ruby-forum.com/t/how-classes-and-objects-interact-pickaxe/120244)
**Author:** [@S-gw](https://www.ruby-forum.com/u/S-gw)\ **Replies:** 1\ **Last updated:** [November 15, 2007, 10:43pm UTC](https://www.ruby-forum.com/t/how-classes-and-objects-interact-pickaxe/120244 "2007-11-15T22:43:09Z")
I’m sorry about the bandwidth, but I just read “How Classes and Objects Interact” from Chapter 24 (“Classes and Objects”) of the Pickaxe book, and I have to comment that it is so clear that it hurts. I hate to cut in… --- ## [Module vs Class](https://www.ruby-forum.com/t/module-vs-class/120297)
**Author:** [@jack.tang](https://www.ruby-forum.com/u/jack.tang)\ **Replies:** 6\ **Last updated:** [November 15, 2007, 8:57pm UTC](https://www.ruby-forum.com/t/module-vs-class/120297 "2007-11-15T20:57:16Z")
Hi Guys I am new to ruby, and one question here: what object should I wrap as Module and what should I wrap as Class, any rules to fellow? Thanks /Jack --- ## [Do I need to use JRuby to access an remote oracle DB with JDBC?](https://www.ruby-forum.com/t/do-i-need-to-use-jruby-to-access-an-remote-oracle-db-with-jdbc/120302)
**Author:** [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\ **Replies:** 2\ **Last updated:** [November 15, 2007, 6:13pm UTC](https://www.ruby-forum.com/t/do-i-need-to-use-jruby-to-access-an-remote-oracle-db-with-jdbc/120302 "2007-11-15T18:13:16Z")
When I try to connect to a remote oracle DB using activerecord oci8, I get the error below. I can connect with dbvisualizer tool using a JDBC connection. I’m not on an officialy sanctioned project and can’t really bug… --- ## [Use module or class with a container that holds only object references?](https://www.ruby-forum.com/t/use-module-or-class-with-a-container-that-holds-only-object-references/120307)
**Author:** [@aidy](https://www.ruby-forum.com/u/aidy)\ **Replies:** 0\ **Last updated:** [November 15, 2007, 6:10pm UTC](https://www.ruby-forum.com/t/use-module-or-class-with-a-container-that-holds-only-object-references/120307 "2007-11-15T18:10:55Z")
Hi, I have a number of object references that I need to use in most if not all of my classes. Would it be better to hold them in a separate class and instantiate the class and reference the object in the rest of the … --- ## [Unsubscribing](https://www.ruby-forum.com/t/unsubscribing/120277)
**Author:** [@Enrique\_Comba\_R](https://www.ruby-forum.com/u/Enrique_Comba_R)\ **Replies:** 1\ **Last updated:** [November 15, 2007, 5:27pm UTC](https://www.ruby-forum.com/t/unsubscribing/120277 "2007-11-15T17:27:21Z")
Hi folks! Sorry for this mail (not related to Ruby directly, but to the list itself)… I have been trying to unsubscribe (sending the unsubscribe message) since a couple of months, but I seem to be receiving the mails … --- ## [Struct constructor](https://www.ruby-forum.com/t/struct-constructor/120292)
**Author:** [@wemagor](https://www.ruby-forum.com/u/wemagor)\ **Replies:** 5\ **Last updated:** [November 15, 2007, 5:23pm UTC](https://www.ruby-forum.com/t/struct-constructor/120292 "2007-11-15T17:23:50Z")
It isn’t possible to define a class method \[\] (to make a constructor) for a struct is it? If you have: Customer = Struct.new( "Customer", :name, :address, :zip ) joe = Customer.new( "Joe S.", "123 Maple, Anytown NC"… --- ## [Whats the ruby way of associating metadata with a function](https://www.ruby-forum.com/t/whats-the-ruby-way-of-associating-metadata-with-a-function/120043)
**Author:** [@keith](https://www.ruby-forum.com/u/keith)\ **Replies:** 7\ **Last updated:** [November 15, 2007, 4:13pm UTC](https://www.ruby-forum.com/t/whats-the-ruby-way-of-associating-metadata-with-a-function/120043 "2007-11-15T16:13:34Z")
Hi All, I’ve pretty new to ruby and still getting to know how ruby works. I want to associate some metadata to a function. I saw a similar post down this line but didn’t get the real answer. In javascript I’m used to… --- ## [Ruby & Flash](https://www.ruby-forum.com/t/ruby-flash/120288)
**Author:** [@Toby\_OSRourke](https://www.ruby-forum.com/u/Toby_OSRourke)\ **Replies:** 0\ **Last updated:** [November 15, 2007, 3:47pm UTC](https://www.ruby-forum.com/t/ruby-flash/120288 "2007-11-15T15:47:33Z")
Hi, I need to generate a chart with graphic links, buttons etc for the web. SVG would be fine except IE doesn’t support it natively as far as I can tell. I can’t rely on a SVG plugin being present, however I can rely … --- ## [Shoes 0xFF](https://www.ruby-forum.com/t/shoes-0xff/196517)
**Author:** [@S\_why](https://www.ruby-forum.com/u/S_why)\ **Replies:** 1\ **Last updated:** [November 15, 2007, 2:58pm UTC](https://www.ruby-forum.com/t/shoes-0xff/196517 "2007-11-15T14:58:46Z")
Hello, wondering if I could have a word concerning Shoes. Shoes is a tiny, cross-platform windowing toolkit. Think of it as a minimalist apprach to wxWidgets or QT, but taking its cues from web browsers, REBOL/View, … --- ## [Shoes 0xFF](https://www.ruby-forum.com/t/shoes-0xff/120282)
**Author:** [@S\_why](https://www.ruby-forum.com/u/S_why)\ **Replies:** 0\ **Last updated:** [November 15, 2007, 2:50pm UTC](https://www.ruby-forum.com/t/shoes-0xff/120282 "2007-11-15T14:50:32Z")
Hello, wondering if I could have a word concerning Shoes. Shoes is a tiny, cross-platform windowing toolkit. Think of it as a minimalist apprach to wxWidgets or QT, but taking its cues from web browsers, REBOL/View, … --- ## [Handy method Object#in?](https://www.ruby-forum.com/t/handy-method-object-in/120083)
**Author:** [@Kamil](https://www.ruby-forum.com/u/Kamil)\ **Replies:** 5\ **Last updated:** [November 15, 2007, 2:18pm UTC](https://www.ruby-forum.com/t/handy-method-object-in/120083 "2007-11-15T14:18:16Z")
I wish there would be this simple method in the core: class Object def in?(an\_array) an\_array.include?(self) end end Having that it’s nice to write: a = %w(hello world out there) puts ‘world’.in?(a) And it works… --- ## [Design timelines](https://www.ruby-forum.com/t/design-timelines/120272)
**Author:** [@Trans](https://www.ruby-forum.com/u/Trans)\ **Replies:** 1\ **Last updated:** [November 15, 2007, 2:12pm UTC](https://www.ruby-forum.com/t/design-timelines/120272 "2007-11-15T14:12:26Z")
hi– i’m doing a work on a large system and while i have no problems getting intot he bit and pieces of code, i’m finding it much more difficult to put together the “larger picture”. i was hoping that it would sort of… --- ## [Windows Event Logging](https://www.ruby-forum.com/t/windows-event-logging/120124)
**Author:** [@brianspaid](https://www.ruby-forum.com/u/brianspaid)\ **Replies:** 4\ **Last updated:** [November 15, 2007, 2:11pm UTC](https://www.ruby-forum.com/t/windows-event-logging/120124 "2007-11-15T14:11:15Z")
Hello, Anyone know a way to read Window eventlogs remotely and add them to a mysql database for a webpage to create reports from? I have looked at Win32-event & win32-eventlog and with no luck so far. --- ## [Vehicle Counters (#146)](https://www.ruby-forum.com/t/vehicle-counters-146/120276)
**Author:** [@bbazzarrakk](https://www.ruby-forum.com/u/bbazzarrakk)\ **Replies:** 0\ **Last updated:** [November 15, 2007, 1:57pm UTC](https://www.ruby-forum.com/t/vehicle-counters-146/120276 "2007-11-15T13:57:10Z")
This is a cool little data mining problem. Unfortunately, it is a fair bit of work to get a good solution. Justin Either sent in the only full solution and even he chose to cut a few corners. His code does produce… --- ## [Best open source sample](https://www.ruby-forum.com/t/best-open-source-sample/120082)
**Author:** [@johnny](https://www.ruby-forum.com/u/johnny)\ **Replies:** 3\ **Last updated:** [November 15, 2007, 1:40pm UTC](https://www.ruby-forum.com/t/best-open-source-sample/120082 "2007-11-15T13:40:47Z")
Hi, I’m new to Ruby, looking for a good open source project to look at and learn from. I’d like it to access mysql and take queries from the browser. What projects would you suggest? --- ## [Win32ole: Pass by Reference](https://www.ruby-forum.com/t/win32ole-pass-by-reference/120169)
**Author:** [@zxem](https://www.ruby-forum.com/u/zxem)\ **Replies:** 6\ **Last updated:** [November 15, 2007, 1:26pm UTC](https://www.ruby-forum.com/t/win32ole-pass-by-reference/120169 "2007-11-15T13:26:44Z")
All, I am using Ruby 1.8.6 now and trying to so a pass by reference COM call through win32ole. The code looks like this: (I am not really calling Excel) excel = WIN32OLE.new(“excel”) excel.getCell(cell, column, row… --- ## [Array checking?](https://www.ruby-forum.com/t/array-checking/120256)
**Author:** [@nad](https://www.ruby-forum.com/u/nad)\ **Replies:** 7\ **Last updated:** [November 15, 2007, 12:26pm UTC](https://www.ruby-forum.com/t/array-checking/120256 "2007-11-15T12:26:22Z")
hi i have written a array like this. my\_array = \[“one”,“two”,“three”,“four”\] no i want to check a given string is can be found from the above array. eg: if ( my\_array.map{"one"} ) return true; else… --- ## [How to Create Tree View](https://www.ruby-forum.com/t/how-to-create-tree-view/120260)
**Author:** [@anilbhat21](https://www.ruby-forum.com/u/anilbhat21)\ **Replies:** 1\ **Last updated:** [November 15, 2007, 11:55am UTC](https://www.ruby-forum.com/t/how-to-create-tree-view/120260 "2007-11-15T11:55:16Z")
Hi, Does anybody know how to create the tree hierarchy of any text in Ruby? --- ## [Thread synchronization](https://www.ruby-forum.com/t/thread-synchronization/120254)
**Author:** [@sirtyman](https://www.ruby-forum.com/u/sirtyman)\ **Replies:** 0\ **Last updated:** [November 15, 2007, 10:38am UTC](https://www.ruby-forum.com/t/thread-synchronization/120254 "2007-11-15T10:38:23Z")
Hi guys, I’ve got issue with this example part of code: stationStatsTr = Thread.new do while(true) puts “stationStatsTr\\n” sleep 1 end end rulesTr = Thread.new do while(true) #puts stationStatsTr.status sleep … --- ## [No grok the &block](https://www.ruby-forum.com/t/no-grok-the-block/120252)
**Author:** [@S-gw](https://www.ruby-forum.com/u/S-gw)\ **Replies:** 1\ **Last updated:** [November 15, 2007, 8:06am UTC](https://www.ruby-forum.com/t/no-grok-the-block/120252 "2007-11-15T08:06:27Z")
Trying to tackle Ruby bit by bit. Got many of the basic down, but I’m struggling to find an explanation for the significance and usefulness of &block. I think I understand that the important part is & and “block” is j… --- ## [Linking to the tk directory](https://www.ruby-forum.com/t/linking-to-the-tk-directory/120241)
**Author:** [@captaffy](https://www.ruby-forum.com/u/captaffy)\ **Replies:** 1\ **Last updated:** [November 15, 2007, 7:47am UTC](https://www.ruby-forum.com/t/linking-to-the-tk-directory/120241 "2007-11-15T07:47:57Z")
I am new to ruby, so I need some help. I want to use tk widgets when I teach ruby. I have downloaded and installed the ruby-1.8.6-p110 distribution. When I tried to do the “Hello World” window in ruby/tk, irb could … --- ## [How to get the WSDL of a ruby web service](https://www.ruby-forum.com/t/how-to-get-the-wsdl-of-a-ruby-web-service/120251)
**Author:** [@thilinamb](https://www.ruby-forum.com/u/thilinamb)\ **Replies:** 0\ **Last updated:** [November 15, 2007, 6:44am UTC](https://www.ruby-forum.com/t/how-to-get-the-wsdl-of-a-ruby-web-service/120251 "2007-11-15T06:44:29Z")
hi, i followed a article at the following URL and implemented both the service and client. http://www.devx.com/enterprise/Article/28101/0/page/4 the service was deployed successfully and works fine.I used following … --- ## [Reading a column formatted data](https://www.ruby-forum.com/t/reading-a-column-formatted-data/120085)
**Author:** [@suresh](https://www.ruby-forum.com/u/suresh)\ **Replies:** 5\ **Last updated:** [November 15, 2007, 5:50am UTC](https://www.ruby-forum.com/t/reading-a-column-formatted-data/120085 "2007-11-15T05:50:31Z")
Hi I am quite fresh to ruby. I want to read a column formatted data like the one below: Full name Q01 Q02 Q03 Anonymous1 Fair Fair Fair Anonymous2 Excellent Fair Poor Anonymous3 Fair Excellent… [Previous page](https://www.ruby-forum.com/c/ruby/7.md?page=1293) [Next page](https://www.ruby-forum.com/c/ruby/7.md?page=1295)