[#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:

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

Hi everyone.

22 messages 2011/11/30

Re: search through a csv file

From: Kevin <darkintent@...>
Date: 2011-11-15 09:09:45 UTC
List: ruby-talk #390199
On Tue, Nov 15, 2011 at 3:09 AM, Aksh Akku <akshathakshu@gmail.com> wrote:
> i have a person details csv file. I am trying to write a code to search
> for a particular person based on his first and last name. I wrote the
> code to search for single value but i am not sure how to search through
> a table with multiple keys. My code is:
>
>
> def load_xvid_file("person.csv", "r") do |csv|)
>  @firstnames = []
>  @lastnames = []
>  csv_file = CSV.read(person.csv)
>  csv_contents.shift
>  csv_contents.each do |row|
>    @firstnames << row[0]
>  end
>  csv_contents.each do |row|
>    @lastnames << row[1]
>  end
Where have you assigned csv_contents?  I'm guessing that you want to
pass the name of the file to open with def load_xvid_file.  If that is
the case you should be doing
 def load_xvid_file(file_to_open)
#stuff
end

>  @firstnames.each { |f| f.downcase! }
>  @lastnames.each { |l| l.downcase! }
> end
>
> def search_for_person(fname,lname)
>  fname = fname.downcase
>  lname = lname.downcase
>  puts
What is the puts for?
>  if @firstnames.include?(fname)
>  if @lastnames.include?(lname)
You should take a look at Enumerable#select or Array#select if you use
1.9's default CSV class you will get back an array of arrays or you
can just use an each block.  Although I am sure there is a more
compact way of searching a nested array.
>    puts "#{fname} #{lname} found!"
>  else
>     puts "#{fname} #{lname} not found!"
>  end
>  prompt
> end
Unless I am missing something you need one more end in search_for
>
> this code doesn't work. can you help me debug this.
>
> Thank you loads in advance.
>
> Regards,
> Akshath
>
> --
> Posted via http://www.ruby-forum.com/.
>
>

What is the error message that you get?  In the future always include
a bit about the error you get when you run into problems.  Hope this
helps.

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