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  • Executing functions in series

    - by Latanmos
    Hi, First of all... Happy new year! Could you please explain to me, how does this work? I browsed throught Connect's (https://github.com/senchalabs/connect) source code, but I don't get it. I would like to write it by myself. app.get( '/', function(req, res, next) { // Set variable req.var = 'Happy new year!'; // Go to next function next(); }, function(req, res, next) { // Returns 'Happy new year!' console.log(req.var); // <- HOW IS THIS POSSIBLE? // (...) } ); Thanks in advance!

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  • why are javascript functions like this

    - by Kajal
    I am a starter to javascript. I know to write JS userdefined functions. But recently I came across some thing that I can’t recognize. Can anyone explain to me what this is? (function( window, undefined ) { var jQuery = (function() { }); window.jQuery = window.$ = jQuery; })(window); What is the meaning of this? When I Google javascript functions I am getting only function foo(){ alert("This is an alert"); } I know to use these type of functions

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  • How is this regex wrong?

    - by Spot
    I have a regex which I'm using to match user functions inside an IDE (Sublime). This matches what I want (the function name itself), but it also matches the first parentheses. Therefore the match is like follows: this._myFunction('content'); Notice the opening paran. Here is my expression: (?:[^\._])?([\w-]+)(?:[\(]){1} How can I exclude the opening paran from getting matched? . As a bonus question: How can I successfully not match the string: function, because as you can expect function( matches (not fun in JS). Thank you to anyone who can assist.

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  • Toggeling between image

    - by Binaryrespawn
    Hi all, I have two images with which I am using in an anchor tag. I am using jquery toggle on the click event of the anchor tag to swap between images. $(document).ready(function(){ $('#registrationForm').hide(); $('#callform').append("<a id='formlink'>IMAGE 1</a>"); $("#formlink").click(function(){ $('#registrationForm').toggle(function(){ $('#formlink').empty().append(IMAGE 2); }); }); }); This works fine the first time around, however i want to toggle between the two images whenever the other is clicked. Any ideas ?

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  • Javascript - use to load xml data from URL

    - by spenf
    I have this url with some xml data in it: http://64.182.231.116/~spencerf/union_college/Upperclass_Sample_Menu.xml And I would like to load this xml data into my javascript script so I can parse it. I am using parse.com Javascript SDK, in there cloud code. Here is the code I have tried: Parse.Cloud.define("next", function(request, response) { response.success("Hello world!"); $.ajax({ url: 'http://64.182.231.116/~spencerf/union_college/Upperclass_Sample_Menu.xml', // name of file you want to parse dataType: "xml", // type of file you are trying to read success: parse, // name of the function to call upon success error: function(){alert("Error: Something went wrong");} }); }); But when I run this I get an error: $ is not defined at main.js:

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  • Why is it not displaying

    - by Doug
    My fieldset doesn't display onclick, what am I doing wrong? $(document).ready(function(){ $('#More').toggle( function() { $('#search', this).slideDown(); }, function() { $('#search', this).slideUp(); }); }); <div> Item 1 <a href="#" id="More">Item 2</a> Item 3 <fieldset id="search" style="display: none;"> <form> <input type="text"> </form> </fieldset> </div>

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  • prototype to jquery, help please

    - by Patrique
    Hello, I would ask for any user who knows how to program in jquery and prototype of a help to me in the following code in this prototype. function showPanelAds(){ $('ads').style.visibility="visible" } and function blog(id){ var ActionAjax = new Ajax.Updater( {success:'blogphere'}, '/inc/assistidos.asp', { method:'get', parameters:'queryname='+id, onFailure:function(){ $('blogphere').innerHTML="error...<br/><a href=\"javascript:blog('"+id+"')\">Tente novamente</a>"; } }); } thank you from anyone who can help me. thank you.

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  • How do i loop an ajax request (using jquery) and jsp

    - by Mrshll187
    <script> //when page is ready do the following $(document).ready(function() { //set interval of refresh setInterval(doAjaxMethod, 1000); }); function doAjaxMethod(id) { $.ajax({ url: "getStatus/"+id, dataType: "json", success: function(json) { $('#ajaxStatus').html(json.status); } }); </script> <% //How can I do something like this int n = object.size(); for(int i=0; i<n; i++) { doAjaxMethod(object.getId()); } %> <div id=ajaxStatus> status updates here </div>

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  • c# unicode string output

    - by Reg
    I have function to convert string to a Unicode string: private string UnicodeString(string text) { return Encoding.UTF8.GetString(Encoding.ASCII.GetBytes(text)); } But when I am calling this function the output result is wrong. It looks like my function is not working. Console.WriteLine(UnicodeString("????? ?????")) printing on console just questions like that: ????? ???? Is there any way to say to console to display it correct? UPDATE Looks like the problem not in Unicode, I think may be it is displaying question marks because i am not having correct locale in the system (Windows 7)? Is there any way to make it work without changing locale?

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  • Implementing "select distinct ... from ..." over a list of Python dictionaries

    - by daveslab
    Hi folks, Here is my problem: I have a list of Python dictionaries of identical form, that are meant to represent the rows of a table in a database, something like this: [ {'ID': 1, 'NAME': 'Joe', 'CLASS': '8th', ... }, {'ID': 1, 'NAME': 'Joe', 'CLASS': '11th', ... }, ...] I have already written a function to get the unique values for a particular field in this list of dictionaries, which was trivial. That function implements something like: select distinct NAME from ... However, I want to be able to get the list of multiple unique fields, similar to: select distinct NAME, CLASS from ... Which I am finding to be non-trivial. Is there an algorithm or Python included function to help me with this quandry? Before you suggest loading the CSV files into a SQLite table or something similar, that is not an option for the environment I'm in, and trust me, that was my first thought.

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  • jquery add remove objects

    - by Scarface
    Hey guys quick question, I have an add remove script that will add a unique element and should remove it on a click function but does not. I think it is because the added object is not in the DOM when page is loaded but I am not sure how to fix this. IF anyone has any advice I would greatly appreciate it. $(document).ready(function(){ if (action=='content-change'){ $('#droppable2-inner').empty().append('<div id="content-image"><img id="visual-background2" src=' + src + '></div><div id="drop-content" action="drop-image">x</div>'); } $("#drop-content").click(function() { $('#content-image').remove(); }); })

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  • Iterators over a LInked List in a Game in Java

    - by Matthew
    I am using OpenGl in android and they have a callback method called draw that gets called with out my control. (As fast as the device can handle if I am not mistaken) I have a list of "GameObjects" that have a .draw method and a .update method. I have two different threads that handle each of those. So, the question is, can I declare two different iterators in two different methods in two different threads that iterate over the same Linked List? If so, do I simply declare ListIterator<GameObject> l = objets.listIterator() each time I want a new iterator and it won't interfere with other iterators?

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  • JQuery (1.4.2)/Firefox (3.6.3) - .before and .after not working on div

    - by user355561
    I am trying to have a title bar appear when the user clicks on a box. It works perfectly in I.E. 8.0 but not at all in firefox 3.6.3. HTML [code] @import url('style.css'); blah blah blah save changes [/code] Javascript [code] $(document).ready(function(){ $("#edit2").live('click',function(){ if($("#menu").length == 0){ $("#edit2").before(''); } if($("#menu2").length == 0){ $("#edit2").after(''); } this.contentEditable = true; this.focus(); }); $("#edit2").live('blur',function(){ $("#menu").remove(); //$("#menu2").remove(); this.contentEditable = false; }); }); [/code] Could anyone suggest why it's not working? I have managed to use similar code to add/remove new table rows in both browser but I just can't see why this doesn't also work.

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  • Vew not updating after scope update

    - by bsparacino
    Here is a very simple example of what I am trying to do Athlete.save(athlete,function(result) { $scope.athlete = result.athlete; }); The issue is that the $scope.athlete variable does not update in my view. In order to get it to update I have to do this Athlete.save(athlete,function(result) { $scope.athlete.fname = result.athlete.fname; $scope.athlete.lname= result.athlete.lname; $scope.athlete.gender= result.athlete.gender; .... }); This gets annoying very quickly. With the first block of code it's as if angular does not know that my $scope.athlete variable has been updated. This function is triggered from an ng-click, not some jquery call, I am doing it the angular way as far as I know. here is a simpler case I made: http://plnkr.co/edit/lMCPbzqDOoa5K4GXGhCp

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  • How to copy a structure with pointers to data inside (so to copy pointers and data they point to)?

    - by Kabumbus
    so I have a structure like struct GetResultStructure { int length; char* ptr; }; I need a way to make a full copy of it meaning I need a copy to have a structure with new ptr poinnting on to copy of data I had in original structure. Is It any how possible? I mean any structure I have which contains ptrs will have some fields with its lengths I need a function that would copy my structure coping all ptrs and data they point to by given array of lengthes... Any cool boost function for it? Or any way how to create such function?

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  • Is it possible to append html code in parts via JQuery?

    - by phpheini
    I am trying to append li elements coming from a php file with JQuery. Problem is that the html code needs to be seperately appended to different html IDs according to the key value. Unfortunately as I understood append() can only append correct html with all elements closed. Otherwise it will automatically close the tags. The following code will NOT work as dval contains code like <div><li class="some">Some value</li> and append() will make <div><li class="some">Some value</li></div> out of it. So I was wondering whether there is another way, maybe a function other than append() to be able to append html parts? $.each(obj, function(key,val) { $.each(obj[key], function(key, dval) { if(key == "text") { $("#" + key).append(dval); } }) });

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  • Segfaults with singletons

    - by Ockonal
    Hello, I have such code: // Non singleton class MyLogManager { void write(message) {Ogre::LogManager::getSingletonPtr()->logMessage(message);} } class Utils : public singleton<Utils> { MyLogManager *handle; MyLogManager& getHandle { return *handle; } }; namespace someNamespace { MyLogManager &Log() { return Utils::get_mutable_instance().getHandle(); } } int main() { someNamespace::Log().write("Starting game initializating..."); } In this code I'm using boost's singleton (from serialization) and calling Ogre's log manager (it's singleton-type too). The program fails at any trying to do something with Ogre::LogManager::getSingletonPtr() object with code User program stopped by signal (SIGSEGV) I checked that getSingletonPtr() returns address 0x000 But using code Utils::get_mutable_instance().getHandle().write("foo") works good in another part of program. What's wrong could be there with calling singletons?

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  • How to $.extend 2 objects by adding numerical values together from keys with the same name?

    - by muudless
    I currently have 2 obj and using the jquery extend function, however it's overriding value from keys with the same name. How can I add the values together instead? obj1 = {"orange":2,"apple":1, "grape":1} obj2 = {"orange":5,"apple":1, "banana":1} mergedObj = $.extend({}, obj1, obj2); var printObj = typeof JSON != "undefined" ? JSON.stringify : function(obj) { var arr = []; $.each(obj, function(key, val) { var next = key + ": "; next += $.isPlainObject(val) ? printObj(val) : val; arr.push( next ); }); return "{ " + arr.join(", ") + " }"; }; console.log('all together: '+printObj(mergedObj) ); And I get obj1 = {"orange":5,"apple":1, "grape":1, "banana":1} What I need is obj1 = {"orange":7,"apple":2, "grape":1, "banana":1}

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  • javascript:anchor tag problem

    - by Raam
    function main(){ var delImage=document.createElement("img"); delImage.setAttribute("alt","Edit"); delImage.setAttribute("src","drop.png"); var position=newRow.rowIndex; var typeElem=document.createElement("a"); typeElem.setAttribute("name","delete"); typeElem.setAttribute("href","#"); typeElem.appendChild(delImage); typeElem.setAttribute('onclick',"delete(position)"); newRow.insertCell(lastCell).appendChild(typeElem); } function delete(pos){ alert(pos); } i am not able to call the delete function when anchor tag was clicked...what can i want to change to achieve this?

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  • WndProc to detect device unplug and plug

    - by Kev Fixx
    How can I know a devices is plug or unplug in WPF? I am using the code below to detect device changes: private void OnSourceInitialized(object sender, EventArgs e) { IntPtr windowHandle = (new WindowInteropHelper(this)).Handle; HwndSource src = HwndSource.FromHwnd(windowHandle); src.AddHook(new HwndSourceHook(WndProc)); } private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled) { // Handle WM_DEVICECHANGE... if (msg == 0x219) { InitHead(); } return IntPtr.Zero; } Thank you. EDITED: I did the below, still not working: if (msg == 0x0219) { switch (wParam.ToInt32()) { case 0x8000: { InitHead(); } break; } }

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  • Do i need a hashtag in Javascript to pass as a Div

    - by Mike
    How do i insert this php DivSomething into Javascript? Since Javascript needs a hashtag to recognize that as a div. Is there a way to tell JS that this is a Div or there's other better way to do it? Any help would be very much appreciated. <script> /*How do i insert a var DivSomething into JS with a hashtag */ /* DivSomething is php dynamic. It returns a Div. It can be #Div1, #Div2, #Div3... */ var DivSomething = '<?php echo $Highlight; ?>' $(function() { $('#MouseHere').hover(function() { $('#' + DivSomething).css('background-color', '#ffffff'); }, function() { // on mouseout, reset the background colour $('#' + DivSomething).css('background-color', ''); </script>

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  • jQuery is only returning first item

    - by Andy
    For some strange reason, whenever I have a selector and expect to get multiple items, jQuery is only returning the first item, instead of the entire collection. This is the HTML I have: <a id="reply-424880" class="reply" href="#" rel="nofollow">Reply</a> <a id="reply-424885" class="reply" href="#" rel="nofollow">Reply</a> And the selector: $('.reply').unbind('click').click(function(event) { ... } I have tried debugging using FireBug, and still get the same results. Using the work around I can get it to work: $('a').each(function (index, element) { if ($(element).attr('class') == 'reply') { $(this).unbind('click').click(function(event) { ... }); } }); I would like to use the built-in functionality instead of my work around. Any idea why only the first element would be returned?

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  • How to efficiently render different things at different times in a game?

    - by Baqjohanson
    Sorry for the ambiguous title. What I am wondering is what is an efficient way to alternate rendering between lets say a main menu, options menu, and "in the game." The only two ways I've come up with so far are to have 1 render function, with code for each part (menu, ...) and a variable to control what gets drawn, or to have multiple render functions, and use a function pointer to point to the appropriate one, and then just call the function pointer. I always wonder how more professional games do it.

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  • Toggling row colors

    - by cf_PhillipSenn
    I have a table cell in the footer that allows the user to turn on row coloring: $('#highlight').click(function() { $(this).parents('table').RowColors(); }) // From Chapter 7 of Learning jQuery $.fn.RowColors = function() { $('tbody tr:odd', this).removeClass('even').addClass('odd'); $('tbody tr:even', this).removeClass('odd').addClass('even'); return this; }; Q: How do I write a selector that says: IF there is at least 1 row with class="even", then remove both "even" and "odd" ELSE execute the RowColors function.

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  • how to get the value of an php array in jQuery

    - by user1933824
    i have a PHP code that will obtain the total images of a certain website via CURL, and put it inside an PHP loop. $z=1; for ($i=0;$i<=sizeof($images_array);$i++) { ....<img src = "$images_array[$i]" id="$z"> .. $z++; } a user can then scan through the array with a prev/next button and the current image being shown will be displayed in my $('$current_image').val(1); $.post("curl_fetch.php?url="+ extracted_url, { }, function(response){ $('#loader').html($(response).fadeIn('slow')); $('#current_image').val(1); // insert loop value in .val() when i click a button, i want to get the value of the array, and not the loop value $(function() { $(document).on('click','.submit', function () { var img = $('#current_image').val(); //get the array value, not the loop value alert(img); });}); now, how do i properly get the array value in my $('#current_image').val(1); in Jquery.

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