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• How does web applications handle multiple browser window

  - by Jeeyoung Kim

  Hello, I have a very basic knowledge of the web programming, and I couldn't figure out the answer to this question. Typically, a cookie is used to identify a session in web applications. However, as far as I know, multiple browser windows share cookies. In that case, how does web applications distinguish between the tabs?

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• Array filteration PHP

  - by Muhammad Sajid

  I have an array with values like: Array ( [0] => Array ( [parent] => Basic [parentId] => 1 [child] => Birthday [childId] => 2 ) [1] => Array ( [parent] => Basic [parentId] => 1 [child] => Gender [childId] => 3 ) [2] => Array ( [parent] => Geo [parentId] => 10 [child] => Current City [childId] => 11 ) [3] => Array ( [parent] => Known me [parentId] => 5 [child] => My personality [childId] => 7 ) [4] => Array ( [parent] => Known me [parentId] => 5 [child] => Best life moment [childId] => 8 ) ) And I want to filter this array such that their filtration based on parent index, and the final result would be like: Array ( [0] => Array ( [parent] => Basic [parentId] => 1 [child] => Array ( [0] => Birthday [1] => Gender ) ) [1] => Array ( [parent] => Geo [parentId] => 10 [child] => Array ( [0] => Current City ) ) [2] => Array ( [parent] => Known me [parentId] => 5 [child] => Array ( [0] => My personality [1] => Best life moment ) ) ) For that I coded : $filter = array(); $f = 0; for ($i=0; $i<count($menuArray); $i++) { $c = 0; for( $b = 0; $b < count($filter); $b++ ){ if( $filter[$b]['parent'] == $menuArray[$i]['parent'] ){ $c++; } } if ($c == 0) { $filter[$f]['parent'] = $menuArray[$i]['parent']; $filter[$f]['parentId'] = $menuArray[$i]['parentId']; $filter[$f]['child'][] = $menuArray[$i]['child']; $f++; } } But it results : Array ( [0] => Array ( [parent] => Basic [parentId] => 1 [child] => Array ( [0] => Birthday ) ) [1] => Array ( [parent] => Geo [parentId] => 10 [child] => Array ( [0] => Current City ) ) [2] => Array ( [parent] => Known me [parentId] => 5 [child] => Array ( [0] => My personality ) ) ) Could anyone point out my missing LOC?

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• How To Store Files In An EXE C#

  - by S3THST4

  Alright, so I'm working on programming my own installer in C#, and what I'd like to do is something along the lines of put the files in the .exe, so I can do File.Copy(file, filedir); Or, if this isn't possible, is there another way of doing what I am attempting to do? Thank you in advance. ~Seth

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• Is there a Python-Challenge for beginner?

  - by kame

  The known Python-Challenge is quite difficult. Is there a much easier alternative for training my programming skills?

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• what language is aardvark written in?

  - by fayer

  i wonder what programming language vark.com is written in? both for their website and their messenger service? thanks!

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• fread and fwrite are not recommended for use with structured data

  - by forest58

  A book beginning linux programming 3ed says "Note that fread and fwrite are not recommended for use with structured data.Part of the problem is that files written with fwrite are potentially nonportable between different machines." What does that mean exactly? what calls should I use if I want to write a portable structured data reader or writer? direct system calls?

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• Creating a Virtual Webcam Device for OS X

  - by andsve

  I am looking for a solution to create a "virtual" webcam device under OS X (that acts just as a normal hardware webcam, but the application has full control over what to output). I'm fairly experienced with C++, but not so much with Objective-C and OSX/Cocoa programming. Anyone that can point me in the right direction, where to look and what I should be looking for? I've searched, but most of the results seems to focus on Windows and DirectX. Thanks!

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• C# Visual Studio Unit Test, Mocking up a client IP address

  - by Jimmy

  Hey guys, I am writing some unit tests and I'm getting an exception thrown from my real code when trying to do the following: string IPaddress = HttpContext.Current.Request.UserHostName.ToString(); Is there a way to mock up an IP address without rewriting my code to accept IP address as a parameter? Thanks!

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• What's the difference in those declarations (in JavaScript)?

  - by alexeypro

  In Javascript I can write: function TheFunc(arg) { ... } or TheFunc = function(arg) { ... } or TheFunc : function(arg) { ... } What's the real difference and when should I use which?

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• how to trigger notification from other framework in atmosphere (comet)?

  - by Sean Xiong

  basically i have read some samples, but all are self contained in one servlet. such as: use doGet to establish the long polling connection, and then use doPost to trigger the event to notify all suspended connections. Here is my question: I have other web actions programming in spring mvc, in the spring mvc controller a user post a message via /message/post, how can I make this action to trigger the atmosphere handler to notify the suspended connections?

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• How can i resolve the N+1 Selects problem ?

  - by Maxime ARNSTAMM

  Hello everyone, I have trouble understanding how to avoid the n+1 select in jpa or hibernate. From what i read, there's the 'left join fetch', but i'm not sure if it still works with more than one list (oneToMany).. Could someone explain it to me, or give me a link with a clear complete explanation please ? I'm sorry if this is a noob question, but i can't find a real clear article or doc on this issue. Thanks

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• flip a 1bpp .bmp image horizontally

  - by user576844

  I am trying to write a program containing two source files: main program written in C and assembly(x86 32 and 64) module callable from C. The C declaration for the assembly routine looks like this: void mirrorbmp1(void *img, int width, int height) The task involves Mirror/flipping a 1 bpp .BMP image horizontally while Handling any image width properly, not only multiples of 8. I am new to assembly programming and have very little idea about how i should do the ask. Any help would be appreciated.

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• The difference between triangulation and mesh

  - by xiao

  I have done some computer graphical programming recently, and I have no experience before. I used the library call CGAL(computer geometry algorithm library). Also, I noticed that there is class for triangulation and also class for mesh. Is mesh just a kind of triangle net? Do they have any differences? Thanks!

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• effective functional sort

  - by sreservoir

  I'm programming a function for a TI-NSpire, so I can't use the builtins from inside a function. What is the most generally efficient algorithm for sorting a list of numbers without modifying the list itself? (recursion and list-splitting are fair game, as is general use of math.)

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• Getting the Position of an Android phone by using GPS

  - by poeschlorn

  Hey, it's me again, I've got another question regarding to basic Android programming: How can I access the GPS for getting the current Position of the mobile phone the app is running on? How long can this take to retrieve the information? In this case the GPS might be disabled, how can I enable/disable it again. Which permissions must be granted in the andorid manifest? Greetings and thanks for ur answers, poeschlorn

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• Question on Binary Search Trees.

  - by AGeek

  Hi, I was thinking of implementing a binary search trees. I have implemented some very basic operations such as search, insert, delete. Please share your experiences as to what all other operations i could perform on binary search trees, and some real time operations(basic) that is needed every time for any given situation.. I hope my question was clear.. Thanks.

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• How to setup exchange server mail and address book accounts on mac - Snow Lepord?

  - by Abhishek

  I just got myself a mac, and I've been a long time windows user. So I'm exploring the built in apps, and I wanna setup my 3 mail accounts (1x gmail, 1x hotmail, and 1x corporate using google apps), but I want them to work the way they work on my iphone and my ipad - Using exchange... It really makes life easy to be able to receive and respond to mail instantly, not to mention the contact and calendar syncing... Any ideas? I have found the 'Exchange 2007' and 'Exchange IMAP' options when setting up the account, but things like the server address and all?

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• a free logging proxy anybody (HTTP or TCP)?

  - by zvolkov

  I need to debug a web service. I want to point my client app to the proxy URL and point the proxy to the real service URL and see all requests/responses. I know I could do network sniffing (Wireshark/Ethereal) but isn't there a simple "proxy" app that can do this? I found trivialproxy but the links are broken :(

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• computer history books recommendation

  - by aaa

  hello. I would like to read about history of computing, is there some particular book you recommend about: programming languages and their evolution history of supercomputing and supercomputers Thank you

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• Qt: Is it possible to use mixins technique?

  - by Eye of Hell

  Hello. Qt library includes advanced meta-programming capabilities using they own preprocessing moc compiler. Does anyone knows, is it possible to create some kind of mix-ins via it? For example, i have a QString and want to add a method to it without sub-classing and changing existing code. Does Qt have such solutions for that?

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• Parse string as if it were a querystring in Ruby on Rails

  - by Koning WWWWWWWWWWWWWWWWWWWWWWW

  I have a string like this: "foo=bar&bar=foo&hello=hi" Does Ruby on Rails provide methods to parse this as if it is a querystring, so I get a hash like this: { :foo => "bar", :bar => "foo", :hello => "hi" } Or must I write it myself? EDIT Please note that the string above is not a real querystring from a URL, but rather a string stored in a cookie from Facebook Connect.

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• essential reading for php coding (including databases)?

  - by tombull89

  Hello. I'm more of a SU and SF but now I'm after some help from the SO community. I'm dabbling in a bit of php coding with databases and am getting a bit stuck with relationships and the like. Can anybody reccomend some books, online or real, that would be a good start for someone new(ish) to php and mysql databases? Cheers!

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• What do I need to know to create a source code editor?

  - by Animesh

  Say I want to create a source code editor for ocaml programming language, where do I start? I am looking to create an editor for the Windows platform as a hobby project. My primary skill is in web development. I have developed windows apps long time ago. I have no clue how it is done with todays available tools. I have visual studio 2008 and C# is my language of choice.

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• Longest common substring from more than two strings - Python

  - by Nicolas Noël

  Hi, I'm looking for a python library for finding the longest common substring from a set of python strings. I'have read that it exist to way to solve this problem : - one using suffix trees - the other using dynamic programming. The method implemented is not important. Otherwise, it is important to have a implementation that can be use for a set of strings and not only two strings Thanks,

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• Prepending to a multi-gigabyte file.

  - by dafmetal

  What would be the most performant way to prepend a single character to a multi-gigabyte file (in my practical case, a 40GB file). There is no limitation on the implementation to do this. Meaning it can be through a tool, a shell script, a program in any programming language, ...

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