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  • Array length is zero in jQuery.

    - by James123
    I wrote like this. After submit click loop is not excuting. But I saw value are there, But array lenght is showing '0'. (Please see picture). Why it is not going into loop? and $('#myVisibleRows').val(idsString); becoming 'empty'. $(document).ready(function() { $('tr[@class^=RegText]').hide().children('td'); var list_Visible_Ids = []; var idsString, idsArray; alert($('#myVisibleRows').val()); idsString = $('#myVisibleRows').val(); idsArray = idsString.split(','); $.each(idsArray, function() { if (this != "") { $('#' + this).siblings(('.RegText').toggle(true)); window['list_Visible_Ids'][this] = 1; } }); $('tr.subCategory1') .css("cursor", "pointer") .attr("title", "Click to expand/collapse") .click(function() { //this = $(this); $(this).siblings('.RegText').toggle(); list_Visible_Ids[$(this).attr('id')] = $(this).css('display') != 'none' ? 1 : null; alert(list_Visible_Ids[$(this).attr('id')]) }); $('#form1').submit(function() { idsString = ''; $.each(list_Visible_Ids, function(key, val) { alert(val); if (val) { idsString += (idsString != '' ? ',' : '') + key; } }); $('#myVisibleRows').val(idsString); form.submit(); }); });

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  • How to convert a string to variable name

    - by p1xelarchitect
    I'm loading several external JSON files and want to check if they have been successfully cached before the the next screen is displayed. My strategy is to check the name of the array to see if it an object. My code works perfectly when I check only a single array and hard code the array name into my function. My question is: how can i make this dynamic? not dynamic: (this works) $("document").ready(){ checkJSON("nav_items"); } function checkJSON(){ if(typeof nav_items == "object"){ // success... } } dynamic: (this doesn't work) $("document").ready(){ checkJSON("nav_items"); checkJSON("foo_items"); checkJSON("bar_items"); } function checkJSON(item){ if(typeof item == "object"){ // success... } } here is the a larger context of my code: var loadAttempts = 0; var reloadTimer = false; $("document").ready(){ checkJSON("nav_items"); } function checkJSON(item){ loadAttempts++; //if nav_items exists if(typeof nav_items == "object"){ //if a timer is running, kill it if(reloadTimer != false){ clearInterval(reloadTimer); reloadTimer = false; } console.log("found!!"); console.log(nav_items[1]); loadAttempts = 0; //reset // load next screen.... } //if nav_items does not yet exist, try 5 times, then give up! else { //set a timer if(reloadTimer == false){ reloadTimer = setInterval(function(){checkJSON(nav_items)},300); console.log(item + " not found. Attempts: " + loadAttempts ); } else { if(loadAttempts <= 5){ console.log(item + " not found. Attempts: " + loadAttempts ); } else { clearInterval(reloadTimer); reloadTimer = false; console.log("Giving up on " + item + "!!"); } } } }

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  • Optimize jQuery code

    - by Dannemannen
    Greetings, Just built some stuff with jQuery, everything works perfect(!), but I would like it to be as optimzed as possible.. what small changes can I do to my code? $(document).ready(function() { // hide the indicator, we use it later $(".indicator").hide(); // start the animation of the progressbar $(".fill").animate({ width: "50px",}, 4000, function() { $(".indicator").effect("pulsate", { times:999 }, 2000);}); // notify-me ajax function $(".btn-submit").click(function() { // get the variable email and put it in a new variable var email = $("input#mail").val(); var dataString = 'mail='+email; $.ajax({ type: "POST", url: "/mail.php", data: dataString, dataType: "json", success: function(msg){ // JSON return, lets do some magic if(msg.status == "ok") { $("#response-box").fadeIn("slow").delay(2000).fadeOut("slow"); $("#fade").fadeIn("slow").delay(2000).fadeOut("slow"); $("#response-box .inner").html("<h1>Thank you.</h1>We'll keep in touch!"); $("#mail").val("e.g. [email protected]"); } else { $("#response-box").fadeIn("slow").delay(2000).fadeOut("slow"); $("#fade").fadeIn("slow").delay(2000).fadeOut("slow"); $("#response-box .inner").html("<h1>Oops.</h1>Please try again!"); } } }); //make sure the form doesn't post return false; }); });

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  • finding last loop through a jQuery object

    - by DA
    Sample jquery. Assume $cog is a cached selector of multiple items. $cog.fadeOut('slow',function(){ alert('hey'); }) In that example, of $cog is a jQuery object of 4 DOM elements, the above will fade each element out one by one, and trigger an alert each time on the callback (4 alerts). I'd like to only call the alert when all 4 elements are done with their fadeOut function. This: $cog.fadeOut('slow',function(){ }) alert('hey'); when run, will show an alert, then the $cog elements disappear (I'm guessing due to timing issues with the fadeOut animation) Is there a way when calling a function against multiple DOM objects in a jQuery object to know when it's done with the last item?

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  • ajax not working in codeigniter

    - by user1800797
    I'm trying to send a post request using the ajax jquery function and return some data into a window asynchronously. Here's what I have so far. It doesn't seem to be working. in the view: $.ajax({ url: '/dashboard/presskits/media/get_video_link/', type: 'POST', dataType: 'json', data: { encoded_link : encoded_link }, cache: false, success: function(output_string){ // $('#edit_video_info').append(output_string); alert(output_string.url_data); } // End of success function of ajax form }); // End of ajax call }); in the controller: public function get_video_link() { $temp_url = $this->input->post('encoded_link'); $output_string = json_encode(array('url_data' => $temp_url)); return $output_string; }

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  • How do call this symbolic code transformation ?

    - by erric
    Hi, I often cross this kind of code transformation (or even mathematical transformation) (python example, but applies to any language) I've go a function def f(x): return x I use it into another one. def g(x): return f(x)*f(x) print g(2) leads to 4 But I want to remove the functional dependency, and I change the function g into def g(f): return f*f print g( f(2) ) leads to 4 too How do you call this kind of transformation, locally turning a function into a scalar ?

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  • Linux signals with extra information parameter

    - by Tester
    I was to have some extra information in the callback to sa_sigaction handler, it does not seems possible. So I was wondering if you could suggest me alternatives. Basic requirements: Function A raises an signal/event with a pointer to a struct Handler function tackles the event. The handler function would only be called on an event and a loop to wait for the event, as in select() , is undesirable. TIA

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  • Python, lambda, find minimum

    - by qba
    I have foreach function which calls specified function on every element which it contains. I want to get minimum from thise elements but I have no idea how to write lambda or function or even a class that would manage that. Thanks for every help. I use my foreach function like this: o.foreach( lambda i: i.call() ) or o.foreach( I.call ) I don't like to make a lists or other objects. I want to iterate trough it and find min. I manage to write a class that do the think but there should be some better solution than that: class Min: def __init__(self,i): self.i = i def get_min(self): return self.i def set_val(self,o): if o.val < self.i: self.i = o.val m = Min( xmin ) self.foreach( m.set_val ) xmin = m.get_min() Ok, so I suppose that my .foreach method is non-python idea. I should do my Class iterable because all your solutions are based on lists and then everything will become easier. In C# there would be no problem with lambda function like that, so I though that python is also that powerful.

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  • JQuery + Rails + Select Menu

    - by blackpond
    I want to have a select menu to change a field on a Customer dynamically, I've never used Jquery with a select menu, and I'm having problems. The code: <% form_for @customer , :url = { :action = "update" }, :html ={:class = "ajax_form"} do |f| % Pricing: <%= select :customer, :pricing, Customer::PRICING, {}, :onchange = "$('this').closest('form').submit();" % Application.js: $(document).ready(function(){ $(".ajax_link").live("click",function(event){ //take div class = ajax_link and call this funciton when clicked. event.preventDefault(); // cancels http request $.post($(this).attr("href"), null, null, "script"); return false; }); ajaxFormSubmitHooks(); }); function ajaxFormSubmitHooks(){ $(".ajax_form").submit(function(event){ event.preventDefault(); // cancels http request $.post($(this).attr("action"), $(this).serializeArray(), null, "script"); return false; }); }

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  • Doubt about a particular pattern of Javascript class definition

    - by fenderplayer
    Recently i saw the following code that creates a class in javascript: var Model.Foo = function(){ // private stuff var a, b; // public properties this.attr1 = ''; this.attr2 = ''; if(Model.Foo._init === 'undefined'){ Model.Foo.prototype = { func1 : function(){ //...}, func2 : function(){ //... }, //other prototype functions } } Model.Foo._init = true; } // Instantiate and use the class as follows: var foo = new Model.Foo(); foo.func1(); I guess the _init variable is used to make sure we don't define the prototypes again. Also, i feel the code is more readable since i am placing everything in a function block (so in oop-speak, all attributes and methods are in one place). Do you see any issues with the code above? Any pitfalls of using this pattern if i need to create lots of classes in a big project?

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  • Get CruiseControl to talk to github with the correct public key.

    - by Jezmond
    Hi All, Has anybody installed git and ControlControl and got CruiseControl to pull from GitHub on a window 2003 server. I keep getting public key errors (access denied) - Which is good i suppose as that confirms git is talking to github. However what is not good is that I dont not know where to install the rsa keys so they will be picked up by the running process (git in the context of cc.net). Any help would save me a lot of hair! I have tried installing the keys into; c:\Program Files\Git.ssh Whereby running git bash and cd ~ take me to: c:\Program Files\Git Thanks in advance

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  • IE8 error when using dyanamic form actions

    - by user330711
    Hello all: Please go here to see an iframe based web app. Click on the map of Australia, choose a city, then buy some tickets. Now you will see the cart form located on the lower right corner. The problem is in IE8, I cannot delete checked rows from the table; whereas in other browsers such as FireFox3.6, Opera10, Safari4 and Chrome4, this action is all right. Below is the related javascript. It doesn't use jQuery, as part of the requirement is no framework allowed! And iframes are the my best bet, ajax will simply kill me under this restriction. /* cartForm.js */ function toDeleteRoutes() //this function is executed before form is to be submitted. { if(document.getElementsByClassName('delete_box').length > 0) //there're rows to delete { document.getElementById('cartForm').action ="./deleteRoutes.php"; document.getElementById('cartForm').target ="section4"; return true; //this enables the form to be submitted as usual. } else return false; //there is no more row in table to delete! } function toSendEmail() //this function is executed before form is to be submitted. { document.getElementById('cartForm').action ="./sendEmail.php"; document.getElementById('cartForm').target ="section3"; document.getElementById('delete_btn').disabled = true; //disable delete button now return true; //this enables the form to be submitted as usual. } function toCancelPurchase() { document.getElementById('cartForm').action ="./cancelPurchase.php"; document.getElementById('cartForm').target ="section4"; return true; //this enables the form to be submitted as usual. } I don't know which part is wrong, or this is just because IE8 screws all?

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  • Problem with $.get while submitting form

    - by bradenkeith
    I'm trying to verify that an Account Name is not already in use once a user fills out a form. The code looks like: $("#add_account").submit( function () { $.get( "'.url::site("ajax/check_account_name").'", {account_name: "t"}, function(data){ alert( data ); }); }); I get a $.get response if the statement sits like this: $(document).ready( function () { $.get( "'.url::site("ajax/check_account_name").'", {account_name: "t"}, function(data){ alert( data ); }); }); Which leads me to believe that my $.get statement is correct. Is there some jQuery rule I'm not familiar with that would cause this to fail in on submit scenario? In code block 1, I get values returned like they should. Block 2 gives me a blank response. Any ideas? Thanks for your time, I know you have better things to be doing.

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  • jQuery changing images with animation and waiting for it to trigger hyperlink

    - by user1476298
    I want to switch images on .click() using the url attr I can do so, but I can't figure out how to make it wait, until the animation is done to redirect to the new webpage. Here's the js $(function() { $('.cv').click(function(){ $("#cv img").fadeOut(2000, function() { $(this).load(function() { $(this).fadeIn(); }); $(this).attr("src", "images/cv2.png"); return true; }); }); }); Here's the html: <div id="cv" class="img one-third column"> <a class="cv" target="#" href="cv.joanlascano.com.ar"> <img src="images/cv1.png" alt="Curriculum"/> <br />CV</a> </div> Thank you in advantage!

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  • jQuery reference to (this) does not work?

    - by FFish
    I have this href link with text either "attivo" or "non attivo" User can set the item to 'active' or 'closed' in the database with an ajax request $.post() I have 2 questions for these: I can't get the reference to $(this) to work.. I tried it with a normal link and it works, but not wrapped in if/else?? How can I prevent the user from clicking more than one time on the link and submitting several request? Is this a valid concern? Do I need some sort of a small timer or something? First I was thinking about a javascript confirm message, but that's pretty annoying for this function.. HTML: <dl id='album-list'> <dt id="dt-2">some title</dt> <dd id="dd-2"> some description<br /> <div class='links-right'>status: <a class='toggle-active' href='#'>non attivo</a></div> </dd> </dl> <a class="test" href="#">test</a> JS: $('dd a.toggle-active').click(function() { var a_ref = $(this); var id = a_ref.parent().parent().attr('id').substring(3); if (a_ref.text() == "non attivo") { var new_active = "active"; // for db in english $.post("ajax-aa.php", {album_id:id, album_active:new_active}, function(data) { // alert("success"); a_ref.text("non attivo"); // change href text }); } else { var new_active = "closed"; // for db in english $.post("ajax-aa.php", {album_id:id, album_active:new_active}, function(data) { // alert("success"); a_ref.text("attivo"); // change href text }); } return false; }); $('a.test').click(function() { var a_ref = $(this); $.post("ajax-aa.php", {album_id:2, album_active:"active"}, function(data) { a_ref.text("changed"); }); return false; })

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  • JQuery transition animation

    - by kk-dev11
    This program randomly selects two employees from a json-object Employees array, winnerPos is already defined. For better user experience I programmed these functions to change pictures one by one. The animation stops when the randomly selected person is shown on the screen. The slideThrough function will be triggered when the start button is pressed. function slideThrough() { counter = 0; start = true; clearInterval(picInterval); picInterval = setInterval(function () { changePicture(); }, 500); } function changePicture() { if (start) { if (counter > winnerPos) { setWinner(); start = false; killInterval(); } else { var employee = Employees[counter]; winnerPic.fadeOut(200, function () { this.src = 'img/' + employee.image; winnerName.html(employee.name); $(this).fadeIn(300); }); counter++; } } } The problem is the animation doesn't work smoothly. At first it works, but not perfect. The second time the transition happens in an irregular way, i.e. different speed and fadeIn/fadeOut differs from picture to picture. Could anyone help me to fine-tune the transition?

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  • Why ajax doesn't work unless I refresh or use location.href?

    - by Connor Tang
    I am working on a html project, which will eventually package by Phonegap. So I am trying to encode the data from html form to JSON format, then use ajax send to a php file resides on server, and receive the response to do something else. Now I use <a href='login.html'> in my index.html to open the login page. In my login page, I have this <script> $(document).ready(function(e) { $('#loginform').submit(function(){ var jData = { "email": $('#emailLogin').val(), "password": $('#Password').val()}; $.ajax({ url: 'PHP/login.php', type:'POST', data: jData, dataType: 'json', async: false, error: function(xhr,status){ //reload(); location.href='index.html'; alert('Wrong email and password'); }, success: function(data){ if(data[1] == 1){ var Id_user = data[0]; location.href='loginSuccess.html'; } } }); }); }); </script> to send my data to server. But I found that it won't work, it's still in the login page. I tried to enter data and submit again, it's still nothing happen. Until I refresh the login page and enter data again, it can give an error message or go to the loginsuccess page. However, when I use <script> function loadLogin(){ location.href='login.html'; } </script> to open the login page, everything works well. So what cause this? How can I modify this piece of code to make it better?

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  • jquery navigate in code

    - by galilee
    Hi trying to fade out elements on the page when a navigation link is clicked, then go to the clicked link: $("#navigation a").click(function() { var $clickobj = $this; $("div#content").animate({opacity: 'toggle', paddingTop: '0px'}, 'slow',function(){ $("div#navigation").animate({opacity: 'toggle', paddingTop: '0px'}, 'slow', function(){ $("div#logo").animate({opacity: 'toggle', paddingTop: '0px'}, 900, function(){ $clickobj.click(); }); }); }); return false; }); but this just navigates straight away with the fade out...any ideas?

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  • JQuery: loop through elements with more than one css class name that share only the first class name

    - by omaether
    Hello, I'm trying to use JQuery to loop through several div's with more than one class name, that all have the same first css class name and each one has a different second class name, e.g. <div class="maintext blue"> </div> <div class="maintext purple"> </div> <div class="maintext chartreuse"> </div> <div class="maintext puce"> </div> <div class="maintext lime"> </div> In JQuery I have tried $(".mainText").each(function (i) $(".mainText.*").each(function (i) $(".mainText" *).each(function (i) $(".mainText .*").each(function (i) But it will not select any of the divs with class="mainText ..." thanks for considering the question.

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  • run jquery on each table

    - by Tommy Arnold
    Below I have some jQuery that runs through each table with the classname = sizetable I would like to execute this: $("#frontshade :radio").click(function() {}); But I'm not sure how to replace the "#frontshade" with the id from the array var table_ids = new Array(); $('.sizetable') .each(function(e){ table_ids[] = $(this).attr('id'); // JQUERY TO EXECUTE ON EACH TABLE $("#frontshade :radio").click(function() {}; // }); Thanks in advance for any answers

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  • Namespacing technique in JavaScript, recommended? performant? issues to be aware of?

    - by Bjartr
    In a project I am working on I am structuring my code as follows MyLib = { AField:0, ASubNamespace:{ AnotherField:"value", AClass:function(param) { this.classField = param; this.classFunction = function(){ // stuff } } }, AnotherClass:function(param) { this.classField = param; this.classFunction = function(){ // stuff } } } and so on like that to do stuff like: var anInstance = new MyLib.ASubNamespace.AClass("A parameter."); Is this the right way to go about achieving namespacing? Are there performance hits, and if so, how drastic? Do performance degradations stack as I nest deeper? Are there any other issues I should be aware of when using this structure? I care about every little bit of performance because it's a library for realtime graphics, so I'm taking any overhead very seriously.

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  • Why does jquery behave like this

    - by andrei
    $('.box').click(function(){ $(this).find('p').toggle( function () { $(this).css({"color" : "red"}); }, function () { $(this).css({"color" : "black"}); } ); }); if i execute this script the 'p' color will change if i click on the 'p' not on the .box class why ? And how to i make it so that 'p' color changes when i click on the .box div

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  • jQuery bind method

    - by rajeeesh
    In one of my HTML page dynamically loading some file field while clicking a button like follows $('#add').click(function(){ $('#files').append('<input type="file" class="myfile" name="myfile" />'); }); My question is how to "bind" newly added element to HTML page so that I can access like $('.myfile').change(function(){ // Code Here }); I am asking this because $('.myfile').live('change',function(){ // Code here }); not working in all browsers , expecially IE Please help thanks

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  • C/C++ definitions of functions

    - by Vit
    Yesterday, I have been watching discussion here, about compilers and linkers. It was about C library function definitions. I have never thought of that, so it inspired me to do some searching, but I cannot find exactly what I want. I wonder, what is the smallest syntax you need to add into your source code to enable just printf() function. I mean the function declaration from stdio.h you need.

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