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• Possible to get jquery .serializeArray() values out by key name?

  - by chobo2

  Hi I am using the jquery .serializeArray() function and I send it to the server and that works all good.However I need to update a couple things on the client side that are serialized. So instead of doing another selector on the textbox I want to just grab it out of the serialized array. I am not sure how to do this Product=Test&Qty=50 So say if I have something like this. I can I do something like this var sendFormData = form.serializeArray(); var val = sendFormData["Product"].value; but this seems not to work. I only can get it to work when I do something like this var sendFormData = form.serializeArray(); var val = sendFormData[0].value; I really don't want to do it by index since that means if the order changes the values could be all wrong. If you could do it by like keyname then that would not be a problem.

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• Fb.Login() does not popup OAuth Dialog?

  - by cnz81

  I'm study fb api recently and I use fb api to do login, however, when I use Fb.Login() method, and scope the permission that I needed. I found the problem that when I use account ( this account is also the fb app admin ) to login, everything is be work including login dialog and oauth dialog , but when I use another account ( General account ) the login dialog is work but OAuth Dialog is not work . I've tried another account ( General account ), it had the same situation, Only when I use the account which is also the fb app owner account would be work. Any Ideas ? Below is the code... FB.login(function (response) { if (response.authResponse) { alert('success !') ; } else { alert(' faild ! '); } }, { scope: "publish_actions" });

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• How can I start a new glutMainLoop() after exiting one?

  - by angaran

  I've written a PERL script using OpenGL. It calls glutMainLoop() to let the user view some stuff, then the user closes the window but I want to let him continue using the script and reopening a new window and seeing some other stuff. Is that possible? I've found that it is possible to execute this instruction: glutSetOption(GLUT_ACTION_ON_WINDOW_CLOSE,GLUT_ACTION_GLUTMAINLOOP_RETURNS); to return to the code after the window is closed. But then if I call again a glut* function it tells me that I can't call it without calling glutInit and if I call glutInit it tells me that I can't just call it again! Is there some trick?

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• returning of the iterator in C++

  - by helloWorld

  can somebody explain I can I return list iterator? list<Account>::iterator Company::findAccount(int id){ for(list<Account>::iterator i = listOfAccounts.begin(); i != listOfAccounts.end(); ++i){ if(i->getID() == id){ return i; } } return 0; } and also is it good practice, to return list iterator? edited also can use this function in the statesments: if(findAccount(id)){ throw "hey"; return; }

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• jquery insert a html block so it starts before the target and ends after the target - is this possib

  - by Chris

  Hi all, I understand you can add insert blocks of html before and after a target using before(), insertBefore(), after() and insertAfter(). I tried to do something similar to this <script type="text/javascript"> $(document).ready(function(){ $("p").before("<div class='myContainer'>"); $("p").after("</div>"); }); </script> <p>paragraph</p> But the inject seems to automatically create closing tags for me, is there a way around this? Cheers

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• New line before header()

  - by MetalAdam

  I'm working with a custom made Joomla script that generates an image from a blob in a database. However, when we moved it from an Apache server to an IIS server, the script is breaking. Upon investigation, it seems that now, there is a line break that is getting appended before the header function is being run (when I comment out the image portion, and do an echo "test";, test gets printed on line 2 of the source code. I've gone through the script over and over again, and through the many files in the component, and can't seem to find out where this new line is coming from. At all. I've tried using ob_start() and many similar functions, but nothing seems to work. I'm completely out of ideas, and don't know where to turn. Is there a way to trace what files are being called in the page, perhaps? Any thoughts on further steps?

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• Screenshot IE7 Javascript

  - by boje

  I have tried but i can get this to work with IE7 or Firefox 5.0. I know that google.com/plus have a nice feedback that works in IE7. http://html2canvas.hertzen.com/screenshots.html Is is using canvas but i have but plugins in all. I get a error i first line of this code: var preload = html2canvas.Preload(body, { "complete": function (images) { var queue = html2canvas.Parse(body, images); var canvas = $(html2canvas.Renderer(queue)); var finishTime = new Date(); $("#content").empty().append(canvas); // throwMessage('Screenshot created in '+ ((finishTime.getTime()-timer)/1000) + " seconds<br />",4000); } }); So if you have a zip file with a example that are working in IE7 or a example i will be more then happy.

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• Missing } in XML expression

  - by Chris

  I have an external javascript file that I want to, upon include, write some HTML to the end of the web page. Upon doing so though I get the error Missing } in XML expression on the line that uses dropdownhtml. Here is my code var dropdownhtml = '<div id="dropdown"></div>'; $(document).ready(function(){ //$(document).append(dropdownhtml); alert(dropdownhtml); }); The XHTML webpage that includes this file does so like this: <script type="text/javascript" src="/web/resources/js/dropdownmenu.js"></script> Doing either append or alert throws up the same error, what is going wrong?

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• How to set value from other class

  - by Ram

  Its said that property should not be "Set" only and it should be "Get" as well. What should i do if I need to set value to a variable from some other class? The will keep changing so I cannot pass it through constructor. Shall I create a function for this as shown below? class A { public void SetValue() { b = new B(); b.SetTest(10); } } class B { int test; public void SetTest(int value) { test = value; } } What are the other alternatives?

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• functionality of cin in c++

  - by wyatt

  I'm a bit confused by the results of the following function: int main() { string command; while(1) { cin >> command; if(command == "end") return 0; else cout << "Could you repeat the command?" << endl; } return 0; } First of all - the output line ("could you...") repeats once for each individual word in the input (stored in command). So far as I can see, it should only be possible for it to happen once for each instance of the loop. Also, when the line 'if(command == "end")' is changed to 'if(command == "that's all")' it never triggers. A little testing suggested that all of the whitespace was removed from the command. Could someone explain to me what's going on here? Thanks

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• jQuery click() event; how to prevent this event on right mouse btn click?

  - by Kirzilla

  Hello, <img src="" width="200" height="200" id="test_img" /> <script> $("#test_img").click(function() { alert("Hello"); }); </script> But it doesn't matter what mouse button I'm pressing - right or left. I see absolutely the same result. I want alert to be shown only on left mouse button click. Thank you and sorry; I'm little new to javascript. Thank you.

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• jquery this and other elements

  - by odavy

  OK, going rond in circles again - I'm sure the answer will be obvious. Just not to me :) I can't seem to specify this as one target amongst a few targets for a function: $(this, "elem1, elem2").doStuff() I just want to doStuff() to a pair of elements, one of which is this. I can only get it to work if I explicitly name the elements, ie... $("elem1, elem2, elem3").doStuff() ...works fine. But I can't seem to get it to work if I want to include this in the list. I have to write one line just for this, and another for elem1 elem2 etc. All help greatly appreciated. Thanks.

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• Macro C++ Issues __VA_ARGS__

  - by CodeLizard

  What (if any) are some potential problems with a C++ macro usage like this? Would an inline function be a more appropriate solution? #define EVENT_INFO(_format_, ...) CMyEvent::Generate(__FILE__, __LINE__, CMyEvent::EVT_HIGH, _format_, __VA_ARGS__) void CMyEvent::Generate( const char* file, // filename int line, // line number CMyEvent::LEVEL level, // severity level const char *format, // format of the msg / data ...) // variable arguments { // Get a message from the pool CMyEvent* p_msg = GetMessageFromPool(); if(p_msg != NULL) { va_list arguments; // points to each unnamed argument va_start(arguments, format); // Fill the object with strings and data. p_msg->Fill(file, line, level, 0, format, arguments); va_end(arguments); } }

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• Missing } in XML expression

  - by Chris

  I have an external javascript file that I want to, upon include, write some HTML to the end of the web page. Upon doing so though I get the error Missing } in XML expression on the line that uses dropdownhtml. Here is my code var dropdownhtml = '<div id="dropdown"></div>'; $(document).ready(function(){ //$(document).append(dropdownhtml); alert(dropdownhtml); }); Doing either append or alert throws up the same error, what is going wrong?

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• Prove 2^sqrt(log(n))= O(n^a)

  - by user1830621

  I posted a question similar to this earlier, although it seemed like it was much easier. I know the underlying principle of Big-O notation says that to prove that 2^sqrt(log(n)) is O(n^a), there must exist a positive value c for which c(n^a) = 2^sqrt(log(n)) for all values n = N. c*n^a >= 2^sqrt(log(n)) c >= 2^sqrt(log(n)) / n^a This number will always be positive so long as n 0. I suppose I could make N = 1 just to be safe. c = 2^sqrt(log(n)) / n^a N = 1 c*n^a = 2^sqrt(log(n) <= 2^log(n) for all values of n >= 1 Now, I know this is incorrect, because I could just as easily claim that the function 2^sqrt(log(n)) is O(n)...

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• trying to hide options from selectlist .. not working on chrom and ie

  - by ninja

  Hi, I have a select lists, which has lots of option. Depending on some input I want to hide few options from select list. To hide options from select list I have written jquery like $('#selectlist1 option').each(function(){ $(this).hide(); }) But this code seems to work only for firefox and its not working on chrom and ie. Whereas if I write $('#selectlist1').hide(); it works for all browser. Any pointer where should I look at?

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• MySQL Query Problem

  - by user559744

  Hello guys, I'm getting following error message. Please help me. Thanks Notice: Trying to get property of non-object in C:\xampp\htdocs\my\include\user_functions.php on line 34 Here is my Code $conn = db_connection(); if($conn == false) { user_error('Unable to connect to database'); return false; } $query = "UPDATE user SET passwd = '".$new_passwd."' WHERE username = '".$username."' "; $result=$conn->query($query); if($result == false) { user_error('Query Error'.$conn->error); return false; } if($result->num_rows == 1) { echo 'Password changed'; } else { echo 'Failed '; } here is my db_connection function db_connection() { $db = new mysqli('localhost','root','','php_login'); if(!$db) { echo 'Could not connect to database server'; } else { return $db; } }

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• display alert when mouse hovers over word in text

  - by user1672790

  I have been struggling with this for a few days. I need somebody to steer me in the right direction. I have been searching on the web. I am not sure if I took the right approach. What I need is that each time a person hovers over a particular keyword, it should display an alert box. In this example the word is else. When I run the code it does not give any errors and does not display anything when mouse hovers on the word. function on_func2() { var searchString = 'else'; var elements = document.getElementById('paragraph2'); for (var i = 0; i < elements.length; i++) { if (elements[i].innerHTML.indexOf(searchString) !== -1) { alert('Match'); break; } } }

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• Hide div when clicking outside

  - by scferg

  I've searched and search not only google but also here and still have to find a solution that will work. I have a div that is hidden by default, then toggled by clicking on a link. I also want it to hide when you click outside of the div. Simple, I thought, but nothing I've tried had worked yet. This is the jquery: <script type="text/javascript"> function toggleDiv(divID) { $("#"+divID).fadeToggle(200); } </script> And the link that toggles it: <a onclick="toggleDiv('myDiv');">Link</a> And then the div: <div id="myDiv"> stuff </div> If anyone has any advice, I would really appreciate it.

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• How can a Perl force its caller to return? [closed]

  - by JS Bangs

  Possible Duplicate: Is it possible for a Perl subroutine to force its caller to return? I want to write a subroutine which causes the caller to return under certain conditions. This is meant to be used as a shortcut for validating input to a function. What I have so far is: sub needs($$) { my ($condition, $message) = @_; if (not $condition) { print "$message\n"; # would like to return from the *parent* here } return $condition; } sub run_find { my $arg = shift @_; needs $arg, "arg required" or return; needs exists $lang{$arg}, "No such language: $arg" or return; # etc. } The advantage of returning from the caller in needs would then be to avoid having to write the repetitive or return inside run_find and similar functions.

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• Preventing user from inserting *

  - by user990635

  I'm trying to prevent user from inserting * in a textbox. This is what I was trying to do, but here it only detects * if this is the only inserted character. For example texts like: *, etc. When allowed characters are mixed with *, then it cannot detect it. For example inputs such as: *hjh, etc.. and maybe how to make it replace only * with "" and not the whole field? <script type="text/javascript"> function testField(field) { var regExpr = new RegExp("[^*]"); if(!regExpr.test(field.value)) { field.value = ""; } } </script> <input type="text" id="searchGamesKeyword" class="searchGamesTextBox" name="searchGamesKeyword" onblur="testField(this);" />

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• Include upper bound in range()

  - by Jull

  How can I include the upper bound in range() function? I can't add by 1 because my for-loop looks like: for x in range(1,math.floor(math.sqrt(x))): y = math.sqrt(n - x * x) But as I understand it will actually be 1 < x < M where I need 1 < x <= M Adding 1 will completely change the result. I am trying to rewrite my old program from C# to Python. That's how it looked in C#: for (int x = 1; x <= Math.Floor(Math.Sqrt(n)); x++) double y = Math.Sqrt(n - x * x);

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• How to determine if two strings are sufficiently close?

  - by A.06

  We say that we can "hop" from the word w1 to the word w2 if they are "sufficiently close". We define w2 to be sufficiently close to w1 if one of the following holds: w2 is obtained from w1 by deleting one letter. w2 is obtained from w1 by replacing one of the letters in w1 by some letter that appears to its right in w1 and which is also to its right in alphabetical order. I have no idea how to check if 2. is fulfilled. To check if 1. is possible this is my function: bool check1(string w1, string w2){ if(w2.length - w1.length != 1){ return false; } for(int i = 0,int j = 0;i < w2.length;i++;j++){ if(w2[i] == w1[j]){//do nothing } else if(i == j){ j++; } else{ return false; } } return true; } Given two words w1 and w2, how do we check if we can 'hop' from w1 to w2?

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• PHP "You have () new comments on your clip", how?

  - by user292516

  Hello. I want to do a function to my users, so on index.php there is e.g: You have 2 new comments on your clip How should i do this? I mean i want ideas to do this the easiest way. Table for the videos is member_videos, and tables for the comment is member_videocomments, a comment inside the table is connected by their "videoID", which is the id of the column in member_videos. Should i do the classic, making a field, which all is 0, until it has been seen by the user its 1 or what should i do.

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• Proper way to use before_create

  - by ruevaughn

  Pretty basic question here, I need to write a before filter on my Category model, to ensure that the depth never reaches more than 2. Here is what I have so far. app/models/category.rb before_create :check_depth def check_depth self.depth = 1 if depth > 2 end I need it instead of setting depth to 1, just to return a error message, but I can't even get this current setup to work, I get the error undefined method `>' for nil:NilClass So, instead of setting the depth to one like I'm trying to do how would I send an error instead? And any help getting the current function working for informational purposes? Thanks in advance

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