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  • Keep a javascript variable after an ajax call

    - by Guillaume le Floch
    I'm new in javascript and jQuery. I'm using ajax calls to get data from my server. The fact is, I'm losing my javascript variables after the call .. Here is what I did : the variable is define outside any function and treat in an other function. var a = 0; function myfunction(url){ $.ajax({ url: url, timeout: 20000, success: function(data){ // Do some stuff // The a variable is now undefined }, error: function(){ // Do some stuff } }); } Everything is working fine, the only thing is that I need to keep my variables ... but it looks like it's gone .. Does anyone know why? Thanks

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  • Does thread pool size keep growing for scheduledthreadpoolexecutor?

    - by Sourajit Basak
    Imagine a situation where tasks are being added to scheduledthreadpoolexecutor. Each of these tasks will keep on running at different periodic intervals. Although all such tasks will not be running at the same time because each is set at different intervals, there may be a situation where a high number of threads are competing for execution. Is there any restriction on total number of threads ? It seems there is a restriction on the total number of idle threads. And does this concept of idle thread imply that long running tasks (thread) may be destroyed and recreated when needed ?

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  • Keep text on left and middle of the div, not center

    - by Jean
    Hello, I want to be able to keep a text on the left, but in the middle of a div. <div id=sel>text goes here</div> and my CSS for the same sel{ text-align:left; vertical-align:middle; } The characters and lines of the text may vary. I am more focussed on the text with a single line that sits on the top. I do not want to use position:absolute/relative. Appreciate all help. Thanks Jean

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  • C++: Keep track of times function is called.

    - by Brundle
    Keeping track of how many times a function is called is easy when passing the counter as an argument into the function. It's also easy when returning a one from the called function. But, I do not want to go that route. The reason behind this is because it seems like bad programming (letting the function know too much information). Is there a better way to keep track of how many times this function has been called? I'm just looking for concepts that I could study. Providing code examples is not neccessary, but might be helpful.

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  • Visual SVN/Tortoise 'Delete - keep local' problem.

    - by UpTheCreek
    I wanted to remove some files from the repository (while leaving them locally), and stop tracking them in the future. I tried this: - Used Tortoise 'Delete - Keep local' on the directory I wanted to remove from versioning. - Comitted to the repository. This commit failed with this error: commit failed... item is out of date Can anyone tell me a) What the correct procedure is for this? b) What can I do to get back to a working repository? Thank you!

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  • How to keep .cproject local to each user while working collaboratively through git

    - by Don't panic
    I have a C++ project that I am working on with several other people. Some of us have Macs with OSX and some of us have PCs with either Windows 7 or Windows 8.1. We are currently using eclipse to edit the project and git for version control. The problem is that whenever you change property settings on one team member's computer the .cproject file is updated. Because different configurations/ file extensions are used across OSX and Windows we want the .cproject file to remain local. We have tried untracking .cproject through a gitignore for the .cproject file, but that just removes the .cproject file from the repository all together. We have also tried setting up an assumed-unchanged for .cproject but if .cproject is changed all this leads to is the need to manually deal with conflicts and updates. Is there any way to keep the file in the repository, but only change it locally? Ie merging would not update the .cproject file.

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  • Github + keep file but dont track changes

    - by Mike
    I have a codeigniter framework thats using github. Within this application I have several files that i will want to have in the repo but not track any changes on.. Example is: i deploy a new installation of this framework to a new client, i want the following files to be downloaded (they have default values 'CHANGEME') and i just have to make changes specific to this client IE(database credentials, email address info, custom css styling). // the production config files i want the files but they need to be updated to specific client needs application/config/production/config.php application/config/production/database.php application/config/production/tank_auth.php // index page, defines the environment (production|development) /index.php // all of the css/js cache (keep the folder but not the contents) /assets/cache/* // production user based styling (color, fonts etc) needs to be updated specific to client needs /assets/frontend/css/user/frontend-user.css currently if i run git clone [email protected]:user123/myRepo.git httpdocs and then i edit the files above, all is great.. until i release a hotfix or patch and run git pull. All of my changes are then overwritten.

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  • iPhone SDK: Keep an image from scrolling with a UIScrollView

    - by Wudstock
    Hi, I've been searching all over for an easy way to do this. Right now I have a UIScrollView setup as my main view. There's an Image on the left and a column of TextFields on the right. When any TextField is tapped, the keyboard comes up and hides the bottom TextField. So I have the ScrollView move up to unhide the bottom TextField. Question #1: Is there a way to have it respond to a specific TextField instead of all of them? Question #2: Is there a way to keep the Image on the left static so it doesn't move with the TextFields? Thanks in advance for any help.

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  • Is keeping uploads folder outside of 'public_html' enough to keep my application secure from malicio

    - by ecu
    Although I realise there are different approaches to securing upload process, I'm still confused when it comes to basic principles. I want to allow users to upload any kind of file they want, but keep my app secure. So my question is: Is it sufficient to store the files with their original names in 'uploads' folder outside 'webroot' and fetching them via some download.php script? If it't not secure enough, please point me in the right direction, or suggest what additional steps I should take to make it safe. Thank you.

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  • Select photo while keep the order

    - by wong2
    I have a list of photo on the page, each have an unique id, user can click on them to toggle select the photo, when they click the submit button, I need to send the array of selected photo ids to the back end, in the order that the photo was selected. I think that the fastest way to track if a photo is selected is to use an object that use photo id as key, like: var selected = { "6272861": true, "6272888": true } when the user unselect a photo, I just need to delete selected["6272861"]. But this will ignore the order, if I use an array to keep the selected photos: var selected = ["6272861", "6272888"]; then when I need to unselect a photo, I have to loop through the array and delete the item. Is there better ways? thanks.

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  • How do you keep all your languages straight?

    - by Chris Blackwell
    I think I'm going a little crazy. Right now, I'm working with the following languages (I was just doing a mental inventory): C++ - our game engine Assembler - low level debugging and a few co-processor specific routines Lua - our game engine scripting language HLSL - for shaders Python - our build system and utility tools Objective C/C++ - game engine platform code for Mac and iPhone C# - A few tools developed in our overseas office ExtendScript - Photoshop exporting tools ActionScript - UI scripting VBScript - some spreadsheet related stuff PHP - some web related stuff SQL - some web and tool related stuff On top of this are the plethora of API's that often have many different ways of doing the same thing: std library, boost, .NET, wxWidgets, Cocoa, Carbon, native script libraries for Python, Lua, etc, OpenGL, Direct3d, GDI, Aqua, augh! I find myself inadvertently conflating languages and api's, not realizing what I'm doing until I get syntax errors. I feel like I can't possibly keep up with it, and I can't possibly be proficient in all of these areas. Especially outside the realm of C++ and Python, I find myself programming more by looking at manuals that from memory. Do you have a similar problem? Ideas for compartmentalizing so you're more efficient? Deciding where you want to stay proficient? Organizational tips? Good ways to remember when you switch from Lua to C++ you need to start using semi-colons again? Rants on how complicated we programmers have made things for ourselves? Any ideas welcome!

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  • How to keep unreachable code?

    - by Gabriel
    I'd like to write a function that would have some optional code to execute or not depending on user settings. The function is cpu-intensive and having ifs in it would be slow since the branch predictor is not that good. My idea is making a copy in memory of the function and replace NOPs with jumps when I don't want to execute some code. My working example goes like this: int Test() { int x = 2; for (int i=0 ; i<10 ; i++) { x *= 2; __asm {NOP}; // to skip it replace this __asm {NOP}; // by JMP 2 (after the goto) x *= 2; // Op to skip or not x *= 2; } return x; } In my test's main, I copy this function into a newly allocated executable memory and replace the NOPs by a JMP 2 so that the following x *= 2 is not executed. The problem is that I would have to change the JMP operand every time I change the code to be skipped. An alternative that would fix this problem would be: __asm {NOP}; // to skip it replace this __asm {NOP}; // by JMP 2 (after the goto) goto dont_do_it; x *= 2; // Op to skip or not dont_do_it: x *= 2; This way, as a goto uses 2 bytes of binary, I would be able to replace the NOPs by a fixed JMP of alway 2 in order to skip the goto. Unfortunately, in full optimization mode, the goto and the x*=2 are removed because they are unreachable at compilation time. Hence the need to keep that dead code.

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  • How to keep only duplicates efficiently?

    - by Marc Eaddy
    Given an STL vector, I'd like an algorithm that outputs only the duplicates in sorted order, e.g., INPUT : { 4, 4, 1, 2, 3, 2, 3 } OUTPUT: { 2, 3, 4 } The algorithm is trivial, but the goal is to make it as efficient as std::unique(). My naive implementation modifies the container in-place: My naive implementation: void keep_duplicates(vector<int>* pv) { // Sort (in-place) so we can find duplicates in linear time sort(pv->begin(), pv->end()); vector<int>::iterator it_start = pv->begin(); while (it_start != pv->end()) { size_t nKeep = 0; // Find the next different element vector<int>::iterator it_stop = it_start + 1; while (it_stop != pv->end() && *it_start == *it_stop) { nKeep = 1; // This gets set redundantly ++it_stop; } // If the element is a duplicate, keep only the first one (nKeep=1). // Otherwise, the element is not duplicated so erase it (nKeep=0). it_start = pv->erase(it_start + nKeep, it_stop); } } If you can make this more efficient, elegant, or general, please let me know. For example, a custom sorting algorithm, or copy elements in the 2nd loop to eliminate the erase() call.

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  • JQuery - nested ul/li list, keep expanded after reload of page

    - by H4mm3rHead
    Hi, I have a nested ul/li list <ul> <li>first</li> <li>second <ul> <li>Third</li> </ul> </li> ... and so on I found this JQuery on the interweb to use as inspiration, but how to keep the one item i expanded open after the page has reloaded? <script type="text/javascript"> $(document).ready(function() { $('div#sideNav li li > ul').hide(); //hide all nested ul's $('div#sideNav li > ul li a[class=current]').parents('ul').show().prev('a').addClass('accordionExpanded'); //show the ul if it has a current link in it (current page/section should be shown expanded) $('div#sideNav li:has(ul)').addClass('accordion'); //so we can style plus/minus icons $('div#sideNav li:has(ul) > a').click(function() { $(this).toggleClass('accordionExpanded'); //for CSS bgimage, but only on first a (sub li>a's don't need the class) $(this).next('ul').slideToggle('fast'); $(this).parent().siblings('li').children('ul:visible').slideUp('fast') .parent('li').find('a').removeClass('accordionExpanded'); return true; }); }); </script>

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  • Silverlight Data Access - how to keep the gruntwork on the server

    - by akaphenom
    What technologies are used / recommended for HTTP Rpc Calls from Silverlight. My Server Side stack is JBoss (servlets / json_rpc [jabsorb]), and we have a ton of business logic (object creation, validation, persistence, server side events) in place that I still want to take advantage of. This is our first attempt at bringing an applet style ria to our product, and ideally we keep both HTML and Silverlight versions. For better or worse the powers that be have pushed us down the silverlight path, and while flex / java fx / silverlight is an interesting debate, that question is removed from the equation. We just have to find a way to get silverlight to behave with our classes. Should I be defining .NET Class representation of our JSON objects and the methodology to serialize / deserialize access to those objects? IE "blah.com/dispenseRpc?servlet=xxxx&p1=blah&p2=blahblah creating functions that invoke the web request and convert the incomming response string to objects? Another way would be to reverse engineer the .NET wcf(or whatever) communications and implement the handler on the Java side that invokes the correct server side code and returns what .NET expects back. But that sounds much trickier. T

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  • how to keep a nativewindow on top

    - by Freddy Rios
    I need to keep a NativeWindow I am creating on top of the main window of the application. Currently I am using alwaysInFront = true, which is not limited to the windows in the application. I can successfully synchronize the minimize/restore/move/resize actions, so the top window behaves appropriately in those cases. Even though using this option has the drawback that if I alt-tab to other application the window goes on top of the other application. Because of the above I am trying to get it to work without using the alwaysInFront. I have tried using orderInFrontOf and orderToFront, which gets it in place but when I click an area in the main window the top one becomes hidden i.e. air makes it the top one. I have tried capturing activate/deactivate events but it only happens on the first click, so on the second click the top window becomes hidden again. I also tried making the top window active when the main one becomes active, but that causes the main one to loose focus and I can't click on anything. Ps. I am doing this to improve the behavior of a HTMLOverlay I am using - see http://stackoverflow.com/questions/1044927/flex-air-htmlloader-blank-pop-up-window-when-flash-content-is-loaded/1077738#1077738

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  • keep HTMLformat after replace some text (using PHP and JS)

    - by Sadi
    I would like modify HTML like I am <b>Sadi, novice</b> programmer. to I am <b>Sadi, learner</b> programmer. To do it I will search using a string "novice programmer". How can I do it please? Any idea? Thank you Sadi More clarification: I get some nice reply with possible solution. But please keep posting if you have any idea in mind. I would like to more clarify the problem just in case anyone missed it. Main post shows the problem as an example scenario. 1) Now the problem is find and replace some string without considering the tags. The tags may shows up within a single word. String may contain multiple word. Tag only appear in the content string or the document. The search phrase never contain any tags. We can easily remove all tags and do some text operation. But here the another problem shows up. 2) The tags must be preserve, even after replacing the text. That is what the example shows. Thank you Again for helping

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  • Keep Hibernate Initializer from Crashing Program

    - by manyxcxi
    I have a Java program using a basic Hibernate session factory. I had an issue with a hibernate hbm.xml mapping file and it crashed my program even though I had the getSessionFactory() call in a try catch try { session = SessionFactoryUtil.getSessionFactory().openStatelessSession(); session.beginTransaction(); rh = getRunHistoryEntry(session); if(rh == null) { throw new Exception("No run history information found in the database for run id " + runId_ + "!"); } } catch(Exception ex) { logger.error("Error initializing hibernate"); } It still manages to break out of this try/catch and crash the main thread. How do I keep it from doing this? The main issue is I have a bunch of cleanup commands that NEED to be run before the main thread shuts down and need to be able to guarantee that even after a failure it still cleans up and goes down somewhat gracefully. The session factory looks like this: public class SessionFactoryUtil { private static final SessionFactory sessionFactory; static { try { // Create the SessionFactory from hibernate.cfg.xml sessionFactory = new Configuration().configure().buildSessionFactory(); } catch (Throwable ex) { // Make sure you log the exception, as it might be swallowed System.err.println("Initial SessionFactory creation failed." + ex); throw new ExceptionInInitializerError(ex); } } public static SessionFactory getSessionFactory() { try { return sessionFactory; } catch(Exception ex) { return null; } } }

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  • Copying a foreign Subversion repository to keep under dependencies

    - by Jonathan Sternberg
    I want to keep dependencies for my project in our own repository, that way we have consistent libraries for the entire team to work with. For example, I want our project to use the Boost libraries. I've seen this done in the past with putting dependencies under a "vendor" or "dependencies" folder. But I still want to be able to update these dependencies. If a new feature appears in a library and we need it, I want to just be able to update that repository within our own repository. I don't want to have to recopy it and put it under version control again. I'd also like for us to have the ability to change dependencies if a small change is needed without stopping us from ever updating the library. I want the ability to do something like 'svn cp', then be able to 'svn merge' in the future. I just tried this with the boost trunk, but I'm not able to get any history using 'svn log' on the copy I made. How do I do this? What is usually done for large projects with dependencies?

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  • How do you keep text from wrapping in an NSTableView using NSAttributedString

    - by Justin
    I have an NSTableView that has 2 columns, one for an icon and the other for two lines of text. In the second column, the text column, I have some larger text that is for the name of an item. Then I have a new line and some smaller text that describes the state of the item. When the name becomes so large that it doesn't fit on one line it wraps (or when you shrink the window down so small that it causes the names to not fit on a single line). row1=============== | image |  some name   | | image |   idle               | row2================ | image |  some name really long name   | <- this gets wrapped pushing 'idle' out of the view | image |   idle               | =================== My question is, how could I keep the text from wrapping and just have the NSTableView display a horizontal scroll-bar once the name is too large to fit?

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  • Best way to keep a .net client app updated with status of another application

    - by rwmnau
    I have a Windows service that's running all the time, and takes some action every 15 minutes. I also have a client WinForms app that displays some information about what the service is doing. I'd like the forms application to keep itself updated with a recent status, but I'm not sure if polling every second is a good move performance-wise. When it starts, my Windows Service opens a WCF named pipe to receive queries (from my client form) Every second, a timer on the winform sends a query to the pipe, and then displays the results. If the pipe isn't there, the form displays that the service isn't running. Is that the best way to do this? If my service opens the pipe when it starts, will it always stay open (until I close it or my service stops)? In addition to polling the service, maybe there's some way for the service to notify any watching applications of certain events, like starting and stopping processing? That way, I could poll less, since I'd presumably know about big events already, and would only be polling for progress. Anything that I'm missing?

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  • Upload .txt and keep formating

    - by s2xi
    I have been trying to upload a .txt to my server via a simple php script I made. Everything seems to uploaded correctly, if I open the .txt in Dreamweaver I can see all the formatting is still in tact with spaces and paragraph breaks. The problem I have is when I try to open that file with PHP and import the contents onto my site. I'm not using an editor right now, just a simple div where the contents are echoed. I don't have much experience with uploading/downloading using PHP. Am I not using a command to handle the file contents and keep the initial formatting? In the end I want the user to upload a file, and have PHP read the file and extract certain elements from it based on the number of spaces between paragraph breaks and such. I was able to actually echo the .txt using URLENCODE() which kept the formatting and made all my spaces +'s. Thats the closes I got, but the original file isn't uploaded in the format so I can't do a count for +'s and select x characters after the last +. Hmmm, if someone knows of a script already available that can do this or similar to with me just tweaking that would be awesome.

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  • need help with C++ using maps to keep track of words in a INPUT file

    - by eNetik
    Let say i have a text file with today is today but tomorrow is today tomorrow then using maps how can i keep track of the words that are repeated? and on which line it repeats? so far i have each string in the file read in as a temp and it is stored in the following way: map<string,int> storage; int count = 1 // for the first line of the file if(infile.is_open()){ while( !infile.eof() ){ getline(in, line); istringstream my_string(line); while(my_string.good()){ string temp; my_string >> temp; storage[temp] = count } count++;// so that every string read in the next line will be recorded as that line. } } map<string,int>::iterator m; for(int m = storage.begin(); m!= storage.end(); m++){ out<<m->first<<": "<<"line "<<m->second<<endl; } right now the output is just but: line 1 is: line 2 today: line 2 tomorrow: line 2 But instead.. it should print out(no repeating strings): today : line 1 occurred 2 times, line 2 occurred 1 time. is: line 1 occurred 1 time, line 2 occurred 1 time. but: line 1 occurred 1 time. tomorrow: line 2 occurred 2 times. Note: the order of the string does not matter. Any help would be appreciated. Thanks.

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  • Need help with reCAPTCHA - keep getting incorrect-captcha-sol

    - by Anriëtte Combrink
    Hi I am trying to add a reCAPTCHA to my site, but keep getting incorrect-captcha-sol error when I submit the answer. Can anyone tell me if I am correct in doing the following? I have a generic index.php, which includes contact.php. In contact.php I have inserted the following code: require_once('recaptchalib.php'); $publickey = "XXXX"; $privatekey = "XXXX"; //the response from reCAPTCHA $resp = null; //the error code from reCAPTCHA, if any $error = null; if ($_POST['submit']) { $message = $_POST['message_txt']; $name = $_POST['name_txt']; $email = $_POST['email_txt']; $emailBody = $message; $to = 'xx'; $from = $name.' <'.$email.'>'; $subject = 'XX Website Enquiry'; $headers = 'From: '.$from; $resp = recaptcha_check_answer($privatekey, $_SERVER["REMOTE_ADDR"], $_POST["recaptcha_challenge_field"], $_POST["recaptcha_response_field"]); if ($resp->is_valid) { echo 'captcha correct'; if (mail($to,$subject,$emailBody,$headers)) { //echo 'mail sent'; $confirmation = 'sent'; } else { //echo 'mail not sent'; $confirmation = 'error'; } } else { # set the error code so that we can display it. You could also use # die ("reCAPTCHA failed"), but using the error message is # more user friendly $error = $resp->error; echo $error; } } In my html I inserted the CAPTCHA like this: <form name="contactForm" method="post" action="index.php?id=contact&action=submit#contact"> <tr><td>Name</td><td><div align="right"> <input type="text" name="name_txt" class="input"> </div></td></tr> <tr><td>Email</td><td><div align="right"> <input type="text" name="email_txt" class="input"> </div></td></tr> <tr><td height="10"></td></tr> <tr><td colspan="2">Message</td></tr> <tr><td colspan="2"><textarea name="message_txt" class="textarea" style="width:200px; height:100px"></textarea></td></tr> <tr><td colspan="2"><?php echo recaptcha_get_html($publickey, $error); ?></td></tr> <tr><td colspan="2" style="padding-top:10px;"><input type="image" src="images/header_06.gif" name="submit" value="submit"></td></tr> </form> I cannot see that I am doing anything wrong, but would appreciate any constructive criticism. TIA

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  • How do you keep from running into the same problems over and over?

    - by Stephen Furlani
    I keep running into the same problems. The problem is irrelevant, but the fact that I keep running into is completely frustrating. The problem only happens once every, 3-6 months or so as I stub out a new iteration of the project. I keep a journal every time, but I spend at least a day or two each iteration trying to get the issue resolved. How do you guys keep from making the same mistakes over and over? I've tried a journal but it apparently doesn't work for me. [Edit] A few more details about the issue: Each time I make a new project to hold the files, I import a particular library. The library is a C++ library which imports glew.h and glx.h GLX redefines BOOL and that's not kosher since BOOL is a keyword for ObjC. I had a fix the last time I went through this. I #ifndef the header in the library to exclude GLEW and GLX and everything worked hunky-dory. This time, however, I do the same thing, use the same #ifndef block but now it throws a bunch of errors. I go back to the old project, and it works. New project no-worky. It seems like it does this every time, and my solution to it is new each time for some reason. I know #defines and #includes are one of the trickiest areas of C++ (and cross-language with Objective-C), but I had this working and now it's not.

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