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• How does stack and heap work in .net?

  - by Hemanshu Bhojak

  Are the value types defined inside a reference type stored on the heap or on the stack? If stored on the heap, then when are value types stored on the stack? If stored on the stack, then what goes inside the heap as everything ends at a value type in the end?

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• Good JavaScript Books?

  - by jollyjerry

  I find myself using Javascript day to day without a solid understanding of the language. There are some great writeups out there about using specific features of the language, but I'd like a distilled, printed book reference about the language itself. Please list good books that discuss the JavaScript language; not frameworks, usage and quirks.

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• Arrays multiplication

  - by mariO

  How to write arrayt multiplication (multiplicating two matrieces ie 3x3) of arrays of known size in c++ ? What will be the difference using pointers and reference ?

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• How to get ref of an array in PHP 5 ?

  - by Relax

  In php 5, all variable and objects are passed by reference, but i can't get my codes work My codes is: $arrayA = array(); $array = $arrayA; ... if(!in_array(thedata, $array) // if i use & to get ref, got an error here, should i use *$array here? $array[] = thedata; var_dump($arrayA); The result is empty, am i missing something simple?

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• How to access resources from an external assembly.

  - by Dennis

  I want to create a vb.net project that I will use to only hold image and string resources that I will need in multiple projects. What I can't figure out is how do I reference these resources from other projects.

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• Swap references at build time in VS

  - by NitroxDM

  I have a project that runs on both .NET and .NET CF. But it uses a 3rd party library that will not run on both. So I end up changing the reference every time the project gets built. Project A - References the 3rd party dll. Project B - References A and runs .NET CF Project C - References A and runs .NET Is there a way to automate it?

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• How can you make a variable/Object read only in Javascript?

  - by codeninja

  I have an Object that I only want to be defined when constructed. How can I prevent the Object reference from being changed?

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• References for better performance of newer JSF specifications

  - by Pentius

  Dear fellows, I'm looking for a reference to cite, which states that JSF 1.2 performs better than JSF 1.1. Or JSF 2.0 over JSF 1.2 respectively. I'm quite sure that I've read something like this before but can't find it anymore. Maybe you can help. Or is this mischief and there are no official statements regarding the performance?

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• How to generate real UTF-8 XML with grails without the escape characters?

  - by AngeDeLaMort

  I have been wondering why when I set the encoding to UTF-8 and rendering the XML it replace the extended characters by escape characters (or character reference) like &#x2019; instead of '? I'm using the Render method render(contentType:"text/xml", encoding:"UTF-8") {...} with a proper header render(contentType:"text/xml", encoding:"UTF-8", text:"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n") Any idea if there is a way to write it properly? Thanks.

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• Referencing to objects from anywhere in Cocoa

  - by dave-gennel

  What's the best way to reference to a dynamically allocated object (particularly interface elements) so I can access them from everywhere in the current class? @synthesize? declaring the object in the interface section? anything else?

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• How do I find out what android system icons mean?

  - by The Trav

  Ok, so I've got an andoid phone with a bunch of icons up the top, looks like app notifications go on the left, system icons go on the right. Most of the system icons seem reasonably intuitive, service, 3g, wireless etc. I've recently gotten a new one that looks like a phone being tilted / shaken and have absolutely no idea what it means. Is there a reference site where I can look this thing up?

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• PHP performance difference between passing variables method

  - by Industrial

  Hi everyone, Will there be any measurable performance difference when passing data as values instead of as reference in PHP? It seems like few people are aware of that variables can be passed as values instead of references. Is this common sense or not?

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• C++, is it possible to dimension array

  - by aaa

  hi. Suppose I have some pointer, which I want to reinterpret as static dimension array reference: double *p; double (&r)[4] = ?(p); // some construct? Is it possible to do so? how do I do it?

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• Is there a Windows equivalent for eventfd?

  - by Leaurus

  I am writing a cross-platform library which emulates sockets behaviour, having additional functionality in the between (App-mylib-sockets). I want it to be the most transparent possible for the programmer, so primitives like select and poll must work with accordingly with this lib. The problem is when data becomes available (for instance) in the real socket, it will have to go through a lot of processing, so if select points to the real socket fd, app will be blocked a lot of time. I want the select/poll to unblock only when data is ready to be consumed (after my lib has done all the processing). So I came across this eventfd which allows me to do exactly what I want, i.e. to manipule select/poll behaviour on a given fd. Since I am much more familiarized with Linux environment, I don't know what is the windows equivalent of eventfd. Tried to search but got no luck. Anyone can help me, please?

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• Convert table base design to table less design in best way

  - by Brij

  What is the best optimized way to convert following in table less design? the layout should be cross browser compatible and SEO Friendly. <table cellpadding="0" cellspacing="0"> <tr> <td>Row 1 Column 1</td> <td>Row 1 Column 2</td> <td>Row 1 Column 3</td> </tr> <tr> <td colspan="3" align="center">Row 2</td> </tr> <tr> <td>Row 3</td> <td align="right" colspan="2"><img src="test.jpg" alt="test" /></td> </tr> </table>

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• best way to authenticate and consume web service using phonegap (html5/javascript)

  - by Raiss

  I am going to develop a phonegap application which is pretty simple. I need to implement an authentication and some simple data transfer back and forth to the phone and server. I prefer to use ASP.NET as a web service and our database is MS SQL but I am not sure what approach should I take to create a secure communication between Phonegap App and webservice. The problem with a simple AJAX request is limitation in cross-domain and I’m not sure if JSONP is a good option. I was wondering if someone can tell me what technology I should use in order to make a semi secure connection which works with PhoneGap (html5, javascript ) and .Net webservice. I understand that it’s a general question but I need to know what technology is the best in such a case. thanks

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• Changing Render Kits in Browser

  - by John

  I'm working on a project to develop a cross-browser testing web app. Simply put, I'm tired of having to maintain multiple browsers on the same system and IE in VMware solely for the purpose of testing. Does anyone know if there is any way to change the render kit programmatically? For example, if I insert a URL, I would be able to load the URL and switch the browser render within a frame of some assortment. I am experienced with PHP, JS, and RoR if there is a solution using any of those. Thank you! John

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• Optimized way to convert table base to table less design

  - by Brij

  What is the best optimized way to convert following in table less design? the layout should be cross browser compatible and SEO Friendly. <table cellpadding="0" cellspacing="0"> <tr> <td>Row 1 Column 1</td> <td>Row 1 Column 2</td> <td>Row 1 Column 3</td> </tr> <tr> <td colspan="3" align="center">Row 2</td> </tr> <tr> <td>Row 3</td> <td align="right" colspan="2"><img src="test.jpg" alt="test" /></td> </tr> </table>

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• How to split a path platform independent?

  - by Janusz

  I'm using the following code to get an array with all sub directories from a given path. String[] subDirs = path.split(File.separator); I need the array to check if certain folders are at the right place in this path. This looked like a good solution until findBugs complains that File.separator is used as a regular expression. It seems that passing the windows file separator to a function that is building a regex from it is a bad idea because the backslash being an escape character. How can I split the path in a cross platform way without using File.separator? Or is code like this okay? String[] subDirs = path.split("/");

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• Game Programming - GUIs

  - by Spencer

  I've been coding for a while now and would like to start looking into programming games. I know the industry's standard language is C++, for 3D graphics the main choice is between Direct 3D and OpenGL, but what is the most widely used GUI framework? I'm currently on a Mac so if native Windows API is the answer, then what is the cross platform choice? To be clear, I'm not looking for people's favourites but simply what the common or standard game industry's choice is so that I can learn and familiarize myself with it. Thanks, Spencer

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• Detecting a image 404 in javascript.

  - by xal

  After a user uploads a file we have to do some additional processing with the images such as resizing and upload to S3. This can take up to 10 extra seconds. Obviously we do this in a background. However, we want to show the user the result page immediately and simply show spinners in place until the images arrive in their permanent home on s3. I'm looking for a way to detect that a certain image failed to load correctly (404) in a cross browser way. If that happens, we want to use JS to show a spinner in it's place and reload the image every few seconds until it can be successfully loaded from s3.

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• Make two servers talk to each other

  - by Maksim

  I have application written in GWT and hosted on Google AppEngine/Java. In this application user will have an option to upload video/audio/text file to the server. Those files could be big, up to 1gb or so and because GAE/J does not support large file I have to use another server to store those files. This would be easy to implement if there was no cross-domain security feature in browsers. So, what I'm thinking is to make GAE Server talk to my server (Glassfish or any other java servers if needed) to tell url to the file and if possible send status of uploaded file (how many percent was uploaded) so I can show status on clients screen. Here is what I'm thinking to do. When user loads GWT page that is stored on GAE/J he/she will upload file to my server, then my server will send response back to GAE and GAE will send response to the client. If this scenario is possible what would be the best way to implement GAE to Glassfish conversation?

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• How can I detect if the browser has encountered a JavaScript error ... in JavaScript?

  - by RichH

  For automated testing reasons I want to detect if the browser has encountered JavaScript errors for a page. The type of things that would cause the red numbers in the bottom right in Firebug or yellow warning icon in the Internet Explorer status bar. These JS errors could come from any one of a large numbers of scripts. How in JavaScript can I detect these browser errors? Cross browser solutions prefered, but hey, I'll take anything! As a bonus it would also be great to know the script that caused the error.

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• How to refresh parent page using javascript / asp.net in mozilla firefox browser

  - by Rajesh Rolen- DotNet Developer

  window.opener.location.reload(); is working fine with IE but not refreshing parent page in mozilla firefox browser.. please tell me how to refresh parent page in cross browser. i have got this function : Shared Sub CloseMyWindow() Dim tmpStr As String = "" tmpStr += "window.open('','_parent','');window.close();" tmpStr += "window.opener.location.reload();" 'Dim currentPage As Page = TryCast(HttpContext.Current.Handler, Page) 'currentPage.ClientScript.RegisterStartupScript(GetType(me), "refresh", tmpStr, True) HttpContext.Current.Response.Write("<script language='javascript'>" + tmpStr + "</script>") HttpContext.Current.Response.End() End Sub

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• When should I observe javascript events on window vs. document vs. document.body?

  - by brahn

  I'm using prototype.js for my web app, and I have everything running on chrome, safari, and firefox. I am now working on IE8 compatibility. As I've been debugging in IE, I've noticed that there are javascript events for which I have previously set an observer on the window, e.g. Event.observe(window, eventType, function () {...}); (where eventType might be "dom:loaded", "keypress", etc.) and it works just fine in Chrome/Safari/Firefox. However, in IE the observer never fires. In at least some cases I could get this to work on IE by instead placing the observer on something other than window, e.g. document (in the case of "dom:loaded") or document.body (in the case of "keypress"). However, this is all trial-and-error. Is there some more systematic way to determine where to place these observers such that the results will be cross-browser compatible? Thanks!

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