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• How to handle ctrl+arrow in Javascript?

  - by MartyIX

  I've noticed an problem when trying to catch keyboard shortcut: CTRL+an arrow. I've handled keydown event. Now when I hold CTRL key then keydown event is fired once. If I hold an arrow (so that now I'm holding CTRL+an arrow) it doesn't fire another event. Is it forbidden from any reason? I guess I've already encountered this problem in Opera a few years ago and there was an option for it in browser. My results: holding CTRL, press an arrow -- fires event for CTRL and doesn't fire an event for an arrow press CTRL + an arrow at once -- fires one event but only with keycode of CTRL. holding CTRL, press a letter (eg. S) -- works as expected press CTRL + letter (eg. S) -- works as expected (Results are identical in Chrome and Firefox. Is the behaviour described above a standard?) I'm using: function OnKeyDown(e) { } e.ctrlKey, e.which properties of event The question is: what might be the problem?

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• How can I force the server socket to re-accept a request from a client?

  - by Roman

  For those who does not want to read a long question here is a short version: A server has an opened socket for a client. The server gets a request to open a socket from the same client-IP and client-port. I want to fore the server not to refuse such a request but to close the old socket and open a new one. How can I do ti? And here is a long (original) question: I have the following situation. There is an established connection between a server and client. Then an external software (Bonjour) says to my client the it does not see the server in the local network. Well, client does nothing about that because of the following reasons: If Bonjour does not see the server it does not necessarily means that client cannot see the server. Even if the client trusts the Bonjour and close the socket it does not improve the situation ("to have no open socket" is worser that "to have a potentially bad socket"). So, client do nothing if server becomes invisible to Bonjour. But than the server re-appears in the Bonjour and Bonjour notify the client about that. In this situation the following situations are possible: The server reappears on a new IP address. So, the client needs to open a new socket to be able to communicate with the server. The server reappears on the old IP address. In this case we have two subcases: 2.1. The server was restarted (switched off and then switched on). So, it does not remember the old socket (which is still used by the client). So, client needs to close the old socket and open a new one (on the same server-IP address and the same server-port). 2.2. We had a temporal network problem and the server was running the whole time. So, the old socket is still available for the use. In this case the client does not really need to close the old socket and reopen a new one. But to simplify my life I decide to close and reopen the socket on the client side in any case (in spite on the fact that it is not really needed in the last described situation). But I can have problems with that solution. If I close the socket on the client side and than try to reopen a socket from the same client-IP and client-port, server will not accept the call for a new socket. The server will think that such a socket already exists. Can I write the server in such a way, that it does not refuse such calls. For example, if it (the server) sees that a client send a request for a socket from the same client-IP and client-port, it (server) close the available socket, associated with this client-IP and client-port and than it reopens a new socket.

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• Sending string to wcf service using jquery ajax. why can i only send strings of numbers?

  - by Robodude

  Hi Guys, For some reason, I'm only able to pass strings containing numbers to my web service when using jquery ajax. This hasn't been an issue so far because I was always just passing IDs to my wcf service. But I'm trying to do something more complex now but I can't figure it out. In my interface: [OperationContract] [WebInvoke(ResponseFormat = WebMessageFormat.Json)] DataTableOutput GetDataTableOutput(string json); My webservice: public DataTableOutput GetDataTableOutput(string json) { DataTableOutput x = new DataTableOutput(); x.iTotalDisplayRecords = 9; x.iTotalRecords = 50; x.sColumns = "1"; x.sEcho = "1"; x.aaData = null; return x; } Javascript/Jquery: var x = "1"; $.ajax({ type: "POST", async: false, url: "Services/Service1.svc/GetDataTableOutput", contentType: "application/json; charset=utf-8", data: x, dataType: "json", success: function (msg) { }, error: function (XMLHttpRequest, textStatus, errorThrown) { //alert(XMLHttpRequest.status); //alert(XMLHttpRequest.responseText); } }); The above code WORKS perfectly. But when I change x to "t" or even to "{'test':'test'}" I get a Error 400 Bad Request error in Firebug. Thanks, John EDIT: Making some progress! data: JSON.stringify("{'test':'test'}"), Sends the string to my function! EDIT2: var jsonAOData = JSON.stringify(aoData); $.ajax({ type: "POST", async: false, url: sSource, contentType: "application/json; charset=utf-8", data: "{'Input':" + jsonAOData + "}", dataType: "json", success: function (msg) { }, error: function (XMLHttpRequest, textStatus, errorThrown) { //alert(XMLHttpRequest.status); //alert(XMLHttpRequest.responseText); } }); EDIT3: I modified the code block I put in EDIT2 up above. Swapping the " and ' did the trick! $.ajax({ type: "POST", async: false, url: sSource, contentType: "application/json; charset=utf-8", data: '{"Input":' + jsonAOData + '}', dataType: "json", success: function (msg) { }, error: function (XMLHttpRequest, textStatus, errorThrown) { //alert(XMLHttpRequest.status); //alert(XMLHttpRequest.responseText); } }); However, I have a new problem: public DataTableOutput GetDataTableOutput(DataTableInputOverview Input) { The input here is completely null. The values I passed from jsonAOData didn't get assigned to the DataTableInputOverview Input variable. :(

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• how to get a value which points to a function

  - by darkandcold

  hi, i have a value like that var myvalue=myfunction(1,2); what I need is that GETTING myfunction(a,b) as a string.. I mean not "myfunction's value" hmmm, let me explain, myfunction(1,2) returns 1+2=3 if I type alert(myvalue) it returns 3 but I need myfunction(a,b) AS IT'S TYPED when I use alert. NOT IT'S VALUE think it like var myvalue='myfunction(a,b)' now, if i use Alert, it gives me myfunction(a,b) how can I do that?

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• Annonymous functions accessing local variables [ActionScript - Flex 3.5]

  - by Ali

  Hi All, I am having a situation with my actionscript/flex front end. for each (var sym:String in ["A","B","C"]) { const handler = function (data:Object):void { Alert.show(sym); } asyncCallback(handler); } I am expecting to have 3 Alert windows containing A, B and C. But the actual result is 3 alert windows all showing C ! I appreciate your comments. -A

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• onPageLoad is not working properly in Firefox Extension Development

  - by Tharaka Deshan

  I am new to Firefox Extension Development and doing my 1st program. Simply I needed to pop up a alert once it loaded the page. My code was like this: var myExtension = { init: function() { if(gBrowser) gBrowser.addEventListener("DOMContentLoaded", this.onPageLoad, false); }, onPageLoad: function(aEvent) { alert("Loaded"); } } window.addEventListener("load", function load(event){ window.removeEventListener("load", load, false); myExtension.init(); },false); But I am getting the alert box for couple of times. Then I found about "#document" and then I added a IF condition: onPageLoad: function(aEvent) { if (aEvent.originalTarget.nodeName == '#document') { alert("Loaded"); } } Unfortunately still I am getting the same. Please advise me on this.

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• How can i return the value of disabled drop-down field after submit?

  - by ninja

  Hi again , My problem still remains, thanks anyway to make it more clear there is my code: <%=DTask.LU_TECHNICIAN_TITLE% : 0}" alert('something') "/ 0}" alert('something') " " selected="selected"

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• how does memory stacks work in javascript

  - by user227353

  When we have code like: function a(){ var x =0; this.add=function(){ alert(x++); } } var test = new a(); test.add(); // alert 0 test.add(); // alert 1 test.add(); // alert 2 How does this work? Doesn't that the value of 'x' in a() should be 'gone' as soon as test = new a() is complete? The stack contains x should also be gone as well, right? Or, does javascript always keep all the stacks ever created in case they will be referenced in future? But that wouldn't be nice, would it...?

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• .click() callback references local variable from the calling method instead of copying by value

  - by Eric Freese

  The following jQuery Javascript code is included on an otherwise empty page. $(function() { for (var i = 0; i < 10; i++) { element = $('<div>' + i + '</div>'); element.click(function() { alert(i); }); $('body').append(element); } }); The desired behavior is that this code should generate 10 div elements numbered from 0 to 9. When you click on a div element, an alert popup will show the number of the div element you clicked on (i.e. if a user clicks on the div element labeled '4', the alert popup should show the number 4). The alert popup instead shows the number 10 regardless of which div element is clicked on. How can I modify this code to make it behave in the desired way?

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• YAHOO.util.Connect.asyncRequest does not work in Safari

  - by 24x7Programmer

  When I request a webpage using YAHOO.util.Connect.asyncRequest in Safari I always get Communication Failure message in callback's failure properties statusText. The same method works in IE. What could be wrong here? Here is the code. When the code is executed I always get two alerts: "Three" and "communications failure undefined" (corresponding to the second alert in the failure part below.) Also when I attach the debugger and put break point in the SAProvision.aspx's page load event, the break point is not hit. So it is sure that in safari the page is not being called. While the same is called when executed from IE. function ProvisionBlade() { var path = "http://localhost/SC/Dashboard/SAProvision.aspx" YAHOO.util.Connect.asyncRequest("POST", path, callbacks1, null); } var callbacks1 = { success: function(o) { var check = "test"; alert(o.responseText); }, failure: function(o) { alert("Three"); alert(o.statusText + ' ' + o.responseText); } }

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• When is 'focus' called in 'autocomplete'

  - by user470184

  The 'focus' documentation from http://jqueryui.com/demos/autocomplete/ states : focusType:autocompletefocus Before focus is moved to an item (not selecting), ui.item refers to the focused item. The default action of focus is to replace the text field's value with the value of the focused item, though only if the focus event was triggered by a keyboard interaction. Canceling this event prevents the value from being updated, but does not prevent the menu item from being focused. Code examples Supply a callback function to handle the focus event as an init option. $( ".selector" ).autocomplete({ focus: function(event, ui) { ... } }); Bind to the focus event by type: autocompletefocus. $( ".selector" ).bind( "autocompletefocus", function(event, ui) { ... }); Using below code sets an attribute called 'mytag' with value 'tester' on all of the autocomplete elements even though I have not selected the elements. Why is the attribute 'focus' not added just when one of the drop downs is focused, instead of being added when page is loaded ? $("#myDiv").autocomplete({ source: availableTags, focus: function(event, ui) { $(".ui-autocomplete li").attr("mytag", "tester"); } });

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• Syntax for finding structs in multisets - C++

  - by Sarah

  I can't seem to figure out the syntax for finding structs in containers. I have a multiset of Event structs. I'm trying to find one of these structs by searching on its key. I get the compiler error commented below. struct Event { public: bool operator < ( const Event & rhs ) const { return ( time < rhs.time ); } bool operator > ( const Event & rhs ) const { return ( time > rhs.time ); } bool operator == ( const Event & rhs ) const { return ( time == rhs.time ); } double time; int eventID; int hostID; int s; }; typedef std::multiset< Event, std::less< Event > > EventPQ; EventPQ currentEvents; double oldRecTime = 20.0; EventPQ::iterator ceItr = currentEvents.find( EventPQ::key_type( oldRecTime ) ); // no matching function call I've tried a few permutations to no avail. I thought defining the conditional equality operator was going to be enough.

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• Does window.open not work inside an AIR html component?

  - by John Isaacks

  I have a component in AIR like so: <mx:HTML id="html" width="100%" height="100%" location="https://example.com" locationChange="dispatchLocationChange(event)" /> The page it loads contains this: <a onclick="alert('onclick')">Alert</a> <a href="javascript:alert('js')">Alert</a> <a onclick="window.open('http://www.google.com','_blank')">new window</a> The 2 alerts both work. however nothing happens when you click the new window link. all 3 links works when in a real browser so I know its ok. Is there just no support for window.open in the AIR HTML component? or is this a bug? Is there a work around?

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• code in xmlhttp.readyState==4 doen't get executed

  - by shazia

  function download() { if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { //alert(xmlhttp.readyState); if(xmlhttp.readyState==4 && xmlhttp.status==200) { alert (xmlhttp.responseText); } } xmlhttp.open("GET","import.php?file="+document.getElementById('uploaded_file').value,false); xmlhttp.send(); // location.reload(true); } if I put alert and monitor xmlhttp.readyState then it shows me that its status does turn 4 and it does go in the if statement, if I don't monitor it with alert then it doesn't go in the if statement but I know import.php is working because I can see the changes in the database. I don't know whats going on...can anyone help. Thanks

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• Dynamic content in a Gridview

  - by mariki

  I have a gridview with couple of columns,I want to achieve the following: If user is NOT authorized display normal columns. If user IS authorized: set mouseover event for first column text and display some buttons (that are not available for NOT authorized users) in a second column when user hover over(using javascript) the first column. I am have 2 difficulties: The first one where and when should I create the buttons? I have 2 options, I can create those button on design time, in gridviews template and just set Visible value to false and then in codebehind set it to true if user is authorized. The second option would be creating this buttons dynamically in gridview_RowCreated event (or any other event) if user is authorized. The Second difficulty is setting the javascript event to show the buttons, the event should be added only if user is authorized! Note that event and buttons should have some kind of id match for Javascript function to know what should it hide/unhide when event is triggered. What should I do, what is the best practice? I know this is a long question, but please try to help :)

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• Jquery .$.ajax is not working

  - by Saravanan I M

  I am using $.ajax for facebook invite and calling the url (Yii framework controller). The below code is not working. $.ajax is not working. function FacebookInviteFriends() { FB.ui ( { method : 'apprequests', data: '', display: 'dialog', title : 'Invite a Friend', message: 'I just sent you an invitation to play My Game.', filters: ['app_non_users'] }, function(response) { alert("start"); if (response && response.to) { alert("inside if"); $.ajax({ url: 'http://localhost:83/invitechips/createRecord', type: 'POST', data: {id : response.to} }).done(function() { alert( "Data Saved: "); }); } else { alert("inside else"); } } ); }

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• Should I HttpCombine Google Jquery Hosted File?

  - by chobo2

  Hi I am using something called HttpCombiner: http://code.msdn.microsoft.com/HttpCombiner An HTTP handler that combines multiple CSS, Javascript or URL into one response for faster page load. It can combine, compress and cache response which results in faster page load and better scalability of web application It's a good practice to use many small Javascript and CSS files instead of one large Javascript/CSS file for better code maintainability, but bad in terms of website performance. Although you should write your Javascript code in small files and break large CSS files into small chunks but when browser requests those javascript and css files, it makes one Http request per file. Every Http Request results in a network roundtrip form your browser to the server and the delay in reaching the server and coming back to the browser is called latency. So, if you have four javascripts and three css files loaded by a page, you are wasting time in seven network roundtrips. Within USA, latency is average 70ms. So, you waste 7x70 = 490ms, about half a second of delay. Outside USA, average latency is around 200ms. So, that means 1400ms of waiting. Browser cannot show the page properly until Css and Javascripts are fully loaded. So, the more latency you have, the slower page loads. You can reduce the wait time by using a CDN. Read my previous blog post about using CDN. However, a better solution is to deliver multiple files over one request using an HttpHandler that combines several files and delivers as one output. So, instead of putting many or tag, you just put one and one tag, and point them to the HttpHandler. You tell the handler which files to combine and it delivers those files in one response. This saves browser from making many requests and eliminates the latency. This Http Handler reads the file names defined in a configuration and combines all those files and delivers as one response. It delivers the response as gzip compressed to save bandwidth. Moreover, it generates proper cache header to cache the response in browser cache, so that, browser does not request it again on future visit. Now I am wondering since it can handle adding links should I put in it the jquery file? The reason I am not sure is if it gets combined with my other files I think I might close the advantages of it being hosted on googles servers such as caching(my thinking is if it gets combined it will look different so even if a user has it in it's cache I am not sure if it will use the one for the cahce or not). So should I combine it or only the finals that I am using locally?

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• Concatenating string with number in Javascript

  - by Sparky

  I'm trying to create a simple calculator in Javascript. I have an array named expression chunk[0] = 12 chunk[1] = + (the "+" sign) chunk[1] = 5 I used a for loop to loop through the chunks (chunk[]) and join then into a single expression as follows:- equation = ""; // To make var equation a string for(i = 0; i <= length; i++) { equation = equation + expression[i]; alert(expression[i]); } alert(equation); alert(expression[i]) showed values 12, + and 5. But alert(equation) showed 125 (instead of "12+5"). I need the variable equation to be "12+5" so that I can later call eval(equation) and get the value of 12+5. What am I doing wrong here?

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• intialization with a nibFIle failed

  - by zp26

  Hi, I have a problem. I try to initialize a variabile in a classViewController created inside a xib file. I try with the code below but when i append a object to array, these array isn't initialized. Can you help me? thanks and sorry for my english. #import <UIKit/UIKit.h> @interface AccelerometroViewController : UIViewController <UIAccelerometerDelegate, UITextFieldDelegate, UIAlertViewDelegate>{ //..... NSMutableArray *arrayPosizioni; NSMutableArray *arrayPosizioniCorrenti; NSString *nomePosizioneCorrente; } -(IBAction)salvaPosizione; //... @property (nonatomic, assign) NSMutableArray *arrayPosizioni; @property (nonatomic, assign) NSMutableArray *arrayPosizioniCorrenti; @property (nonatomic, assign) NSString *nomePosizioneCorrente; @end #import "AccelerometroViewController.h" #import "Position.h" @implementation AccelerometroViewController float actualX; float actualY; float actualZ; @synthesize arrayPosition; @synthesize arrayCurrentPosition; @synthesize nameCurrentPosition; -(id)init { self = [super init]; if (self != nil) { arrayPosition = [[NSMutableArray alloc]init]; arrayCurrentPosition = [[NSMutableArray alloc]init]; nameCurrentPosition = [NSString stringWithFormat:@"noPosition"]; actualX = 0; actualY = 0; actualZ = 0; } return self; } -(void)updateTextView:(NSString*)nomePosizione { NSString *string = [NSString stringWithFormat:@"%@", nameCurrentPosition]; textEvent.text = [textEvent.text stringByAppendingString:@"\n"]; textEvent.text = [textEvent.text stringByAppendingString:string]; } -(IBAction)savePosition{ Posizione *newPosition; newPosition = [[Position alloc]init]; if([newPosition setValue:(NSString*)fieldNomePosizione.text:(float)actualX:(float)actualY:(float)actualZ]){ //setValue is a method of Position. I'm sure that this method is correct UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Salvataggio Posizione" message:@"Posizione salvata con successo" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:nil]; [alert show]; [alert release]; [arrayPosition addObject:newPosition]; } else{ UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Salvataggio osizione" message:@"Errore nel salvataggio" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:nil]; [alert show]; [alert release]; } } - (void) initialise { arrayPosition = [[NSMutableArray alloc] init]; arrayCurrentPosition = [[NSMutableArray alloc] init]; nameCurrentPosition = @"noPosition"; actualX = 0; actualY = 0; actualZ = 0; } - (id)initWithNibName:(NSString *)nibName bundle:(NSBundle *)nibBundle { if (self = [super initWithNibName:nibName bundle:bundle]) { [self initialise]; } }

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• Javascript array value is undefined ... how do I test for that

  - by Ankur

  I am trying to test to see whether a Javascript variable is undefined. You will see that I am not expecting the value of predQuery[preId] to be 'undefined' if I don't first get an alert saying "its unbelievable". But I often do, so I am guessing that my statement predQuery[preId]=='undefined') is not matching the undefined elements properly. if((predQuery.length < preId) || (predQuery[preId]=="") || (predQuery[preId]=='undefined')){ alert("its unbelievable"); alert(predQuery[preId]); queryPreds[variables] = preId; queryObjs[variables] = objId; predQuery[preId] = variables; } else { alert(predQuery[preId]); var predIndex = predQuery[preId]; queryPreds[predIndex] = preId; queryObjs[predIndex] = objId; } I can add more code if needed.

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• Limit text area value and cut the rest

  - by streetparade

  I have a textarea which users can enter some tags. I need to limit this tags to 20 tags. Tags could be enterer this way maytag1,mytag2,mytag3 What i wrote is this function function limitTags() { var tags = $("input[type=text][name=tags]").val() var tag = $.trim(tags); var selected = new Array(); /** * replace the last ',' */ if(tag.substring(tag.length - 1) == ",") { *///tag = tag.replace(tag.length - 1, ''); } var enteredTags = tag.split(","); if( enteredTags.length > 20 ) { //$("input[type=text][name=tags]").val(enteredTags.join(",", enteredTags)); alert("Only 20 Tags allowed"); } } The alert works just fine but, after the alert box is gone. i can continiue entering tags till the alert box appears. What i need is cut the text after the messagebox which was entered also the last "," I hope i could ask my question clear. Thanks

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• NSString cannot be released

  - by Stanley

  Consider the following method and the caller code block. The method analyses a NSString and extracts a "http://" string which it passes out by reference as an auto release object. Without releasing g_scan_result, the program works as expected. But according to non-arc rules, g_scan_result should be released since a retain has been called against it. My question are : Why g_scan_result cannot be released ? Is there anything wrong the way g_scan_result is handled in the posted coding below ? Is it safe not to release g_scan_result as long as the program runs correctly and the XCode Memory Leak tool does not show leakage ? Which XCode profile tools should I look into to check and under which subtitle ? Hope somebody knowledgeable could help. - (long) analyse_scan_result :(NSString *)scan_result target_url :(NSString **)targ_url { NSLog (@" RES analyse string : %@", scan_result); NSRange range = [scan_result rangeOfString:@"http://" options:NSCaseInsensitiveSearch]; if (range.location == NSNotFound) { *targ_url = @""; NSLog(@"fnd string not found"); return 0; } NSString *sub_string = [scan_result substringFromIndex : range.location]; range = [sub_string rangeOfString : @" "]; if (range.location != NSNotFound) { sub_string = [sub_string substringToIndex : range.location]; } NSLog(@" FND sub_string = %@", sub_string); *targ_url = sub_string; return [*targ_url length]; } The following is the caller code block, also note that g_scan_result has been declared and initialized (on another source file) as : NSString *g_scan_result = nil; Please do send a comment or answer if you have suggestions or find possible errors in code posted here (or above). Xcode memory tools does not seem to show any memory leak. But it may be because I do not know where to look as am new to the memory tools. { long url_leng = [self analyse_scan_result:result target_url:&targ_url]; NSLog(@" TAR target_url = %@", targ_url); UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Scanned Result" message:result delegate:g_alert_view_delegate cancelButtonTitle:@"OK" otherButtonTitles:nil]; if (url_leng) { // ****** The 3 commented off statements // ****** cannot be added without causing // ****** a crash after a few scan result // ****** cycles. // ****** NSString *t_url; if (g_system_status.language_code == 0) [alert addButtonWithTitle : @"Open"]; else if (g_system_status.language_code == 1) [alert addButtonWithTitle : @"Abrir"]; else [alert addButtonWithTitle : @"Open"]; // ****** t_url = g_scan_result; g_scan_result = [targ_url retain]; // ****** [t_url release]; } targ_url = nil; [alert show]; [alert release]; [NSTimer scheduledTimerWithTimeInterval:5.0 target:self selector:@selector(activate_qr_scanner:) userInfo:nil repeats:NO ]; return; }

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• Can't access Elements previously created by innerHTML with Javascript/Prototype

  - by Joe Hopfgartner

  I am setting the innerHTML variable of a div with contents from an ajax request: new Ajax.Request('/search/ajax/allakas/?ext_id='+extid, { method:'get', onSuccess: function(transport){ var response = transport.responseText || "no response text"; $('admincovers_content').innerHTML=response; }, onFailure: function(){ alert('Something went wrong...') } }); The response text cotains a form: <form id="akas-admin" method="post" action="/search/ajax/modifyakas/"> <input type="text" name="formfield" value="i am a form field"/> </form> Then I call a functiont that should submit that form: $('akas-admin').request({ onComplete: function(transport){ //alert('Form data saved! '+transport.responseText) $('admincovers_content').innerHTML=transport.responseText; } }); The problem is $('akas-admin) returns null , I tried to put the form with this id in the original document, which works. Question: Can I somehow "revalidate" the dom or access elements that have been inserted with innerHTML? Edit Info: document.getElementById("akas-admin").submit() works just fine, problem is i don't want to reload the whole page but post the form over ajax and get the response text in a callback function. Edit: Based on the answers provided, i replaced my function that does the request with the following observer: Event.observe(document.body, 'click', function(event) { var e = Event.element(event); if ('aka-savelink' == e.identify()) { alert('savelink clicked!'); if (el = e.findElement('#akas-admin')) { alert('found form to submit it has id: '+el.identify()); el.request({ onComplete: function(transport){ alert('Form data saved! '+transport.responseText) $('admincovers_content').innerHTML=transport.responseText; } }); } } }); problem is that i get as far as alert('savelink clicked!'); . findelement doesnt return the form. i tried to place the save link above and under the form. both doesnt work. i also think this approach is a bit clumsy and i am doing it wrong. could anyone point me in the right direction?

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• Chrome Extension - Console Log not firing

  - by coffeemonitor

  I'm starting to learn to make my own Chrome Extensions, and starting small. At the moment, I'm switching from using the alert() function to console.log() for a cleaner development environment. For some reason, console.log() is not displaying in my chrome console logs. However, the alert() function is working just fine. Can someone review my code below and perhaps tell me why console.log() isn't firing as expected? manifest.json { "manifest_version": 2, "name": "Sandbox", "version": "0.2", "description": "My Chrome Extension Playground", "icons": { "16": "imgs/16x16.png", "24": "imgs/24x24.png", "32": "imgs/32x32.png", "48": "imgs/48x48.png" }, "background": { "scripts": ["js/background.js"] }, "browser_action": { "default_title": "My Fun Sandbox Environment", "default_icon": "imgs/16x16.png" }, "permissions": [ "background", "storage", "tabs", "http://*/*", "https://*/*" ] } js/background.js function click(e) { alert("this alert certainly shows"); console.log("But this does not"); } // Fire a function, when icon is clicked chrome.browserAction.onClicked.addListener(click); As you can see, I kept it very simple. Just the manifest.json and a background.js file with an event listener, if the icon in the toolbar is clicked. As I mentioned, the alert() is popping up nicely, while the console.log() appears to be ignored.

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• JQuery duplicate alerts on update? why?

  - by russp

  I have this JQuery function - that nearly works (so far!) BUT the alerts are duplicated, each appears twice any clues/ideas please $(function() { $("#col1, #col2, #col3").sortable({ connectWith: '.column', update : function () { serial = $('#col1').sortable('serialize'); serial1 = $('#col2').sortable('serialize'); serial2 = $('#col3').sortable('serialize'); alert(serial); alert(serial1); alert(serial2); } }); });

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