JQuery :: Debugging An Ajax Script?
Dec 23, 2010
I recently changed my commenting system to display comments from newest to oldest (newest first). I also moved my comment form above my comments, like in Youtube.However, I have many JQuery problems when I have 2 or more pages of comments. Here are some of them:
1. If I comment, the last page (oldest) comments are displayed when the comment is submitted.
2. If I "reply" to a comment, the comment form moves below the comments.
Code:
function setup_comment_ajax() {
jQuery(".comment-navigation a").livequery("click", function () {
$link = jQuery(this);
[code]...
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Jun 8, 2011
I'm looking for a little help/feedback regarding using a plugin called jqPrint. I haven't used jQuery extensively, and I am new to plugins, so please forgive any novice errors.
First of all, i see on the source page for the plugin [URL].. that it is made for 1.3.x. I assume this does not mean that mean it is incompatible with 1.4.2, which is what my project uses. I have a script with the source code, and I can access a test function. However, I'm running into several problems when trying to to use the primary function of the script.
[Code]...
I'm not quite sure what I'm doing wrong. The script is set up so I can access a test function, but the source function does not work. I would think anyone using the author's script should not need to edit it, but I can't figure out why my project cant' find the jqprint function.
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Jun 28, 2006
I really want to make my scripts work in Opera. I really, really do.
But it seems like an uphill struggle. First of all, I can't get ANY
kind of debug output. No error messages in the "javascript console" -
but then, I have never seen ANYTHING in Opera's javascript console. Is
there some kind of voodoo I need to perform in order to make that work?
Then, when Opera doesn't like something about a script (even if it works
fine in Spidermonkey), it will sometimes refuse to load it entirely,
which means I can't even do alert() based debugging. What the hell?
Can anyone give me some insight as to how they go about making their
scripts run properly in Opera? I make a point of sticking to ECMAScript
standards (and then making per-browser exceptions where needed *COUGH
IE*), but Opera just doesn't want to cooperate.
This is in Opera 8, by the way. I haven't upgraded yet, since I don't
use it, and I think more people still use 8 than 9 so that's what I want
to target.
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Mar 5, 2010
Microsoft Script Debugger has been depreciated.
What tools are recommended for debugging JS for IE? I'm only interested in IE7 and 8, but mostly 8.
There are plenty of tools for FF...
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Jul 21, 2001
If I write a Javascript and want to debug it, what's the best way to do it. The browser just says, "error in the page!"
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Oct 23, 2006
I have many bit of javascript code that does not work. Becasue I dont have a great heal of experience using javascript, Im not too sure where the code goes wrong.
Is there any good javascript debuggers that I can use that will allow me to go through line by line of that javascript code to see whats going on?
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Mar 4, 2010
I'm finding (like small syntax errors) in my JS/html which are sometimes hard to spot straight away. For example, when coding python on the web, I usually use try: except: and then use the error function to output what went wrong on the webpage.
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Jul 23, 2005
Is there any IDE supporting javascript debugging?
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Dec 4, 2006
A newly added, not-quite-wanted function of my job is remotely
debugging JavaScript errors on other people's web applications. I have
tried finding a JavaScript debugger that would allow me to do that, but
other the Microsoft Script Debugger, I couldn't find any other.
Are there such programs? Basically, what I'd like to be able to do is
trace commands step by step and view the values of certain variables.
I was unable to figure out how to get Microsoft Script Debugger to
work. I read the documentation and executed it, but I keep getting
"Syntax error" messages whenever I want to see the value of a variable.
Add to that the fact that I am not a developer and I do not know
JavaScript (other than to read it, which is enough for me to figure out
what the problem is) and you see my problem.
I have read about the option of adding message boxes all over the
place, but this would not work out for me either, since I would need to
make changes to this code on the web server, where I don't have access,
and it would be a lot more tedious.
For those skeptical as to why I still expect to be able to debug
problems:
The problems are caused in most cases by the proxy we add on their web
servers, and they are due to values being changed on the fly. I only
need to find out where the code breaks and read the values of the
variables, which gives me the solution ("do not change this variable").
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Sep 15, 2007
First, is this an appropriate NG for talking about debugging
JavaScript in Aptana?
Assuming it is, I'm trying to get a script to read an external text
file and display the text somehow. The script just dies in the file-
read operation, with no symptom. I tried unsuccessfully to get the
Debugger to run the HTML file.
I put up the following on my personal website:
1. The HTML file: http://home.comcast.net/~CaptQueeg/DemoFileIO.html
2. Some Aptana settings: http://home.comcast.net/~CaptQueeg/...bugSettings.jpg
Did any obvious mistakes jump out at you? Do my Aptana settings
suggest a reason why I can get anything happening under the debugger?
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Aug 28, 2009
I have a couple of server side scripts that keep troubling me. So far I used Visual Studio to debug them, but for some reason I can't put in breakpoints and stuff ... So debugging like I'm used to is not possible. (I'm developing the sites in dreamweaver) I've tried adding a logging function to a flat textfile, but I've been told traditionally writing to a file is not possible in a server side script... how I can best debug such an application? Is it possible to do so in Visual Studio? Another tool?
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May 19, 2011
I've been playing around with a madlibs exercise while trying to learn simple javascript. I have three input boxes and a button display an alert containing the input from the boxes.
Am I right to be assigning variable names to the values from the text boxes and then referencing those variables in my alert?
I've been working on it for hours and can't get past this point.
Inset a name:
<input type="text" id="textbox1" size="10"/>
</br>
Insert a verb :
[Code].....
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Jan 18, 2010
I'm trying to attempt a simple animation, as indicated by the following code. The intention is to move the object (a paragraph element node with id message) to the right by 200 px and down 100 px, by 1 px a second.
However, there seems to be a bug or my methodology is incomplete as the browser returns the Textvalue of the paragraph without any styling.
Code:
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Mar 24, 2010
jquery provides ajaxStart() and ajaxStop() events. Those two events do not seem to be triggered if the ajax requests are made by Microsoft Ajax tool Kit (from ASP.Net code). Is there any way to bridge those two event models? If not currently possible, is there any future initiative or plan out there to make this happen?
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Jun 21, 2010
i was using $.ajax method to get my ajax page on my main page,which is working great.But now if i have links in that ajax page then i can't open them in that same div,the links are opening in new window,but i want to open in same part,i tried google it and then found, i have to use iframe instead of div.how to do with only use jquery and div.
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May 31, 2010
i have a series of <select> fields. The first one, via ajax(), generates a 2nd one, based on the first ones' data with the .change() method. there is then a 3rd <select> - who's data will depend on choice of the second one although step 1 works, and i can generate the 2nd one, i still can't generate the 3rd one.
when i test the script on its own, both the 2nd and 3rd <select> fields are fine - but not via the ajax, which leads me to believe that the .change() from the 2nd one, isnt triggering the ajax call - its not being picked up (even the 'hello' alert isnt working).
[Code]...
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Oct 12, 2010
I am using jquery for getting ajax responses from server side functions.
I am in a situation where I need to make two ajax calls one after another and the second one is dependent on the response of the first one.
I have tried to use a code which is similar to this one?
$.ajax({
type: 'GET',
url: 'myURL',
success: function(data)
[Code]....
Is it possible to get two have two ajax calls , one dependent on the other?
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Apr 14, 2009
I'm creating an AJAX page that is built using a PHP Class, ie the php looks a bit like this: PHP Code:
$wp_page->addjs('../var/savepolicies.js')
$wp_parser->page = "userpolicywindow.php";
$wp_parser->addlink("Home","../index.php","");
$wp_parser->addlink("Logout","javascript:logout();","");
$wp_parser->getpageid("501");
[Code]...
within this page that has been created, there is an AJAX tree folder which calls another page to be loaded into a DIV by AJAX again. Code:
[Code]...
I don't know why it doesn't work because the page has been loaded with the JS file, but as soon as the link is added afterwards it doesn't work. I take it this is because it doesn't know where to find the JS, but how can I overcome this?
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Jul 27, 2011
Am calling Webservice in one ajax post, In the success funtion am calling another another method in same webservice through another ajax post method. First ajax post is getting called and returning the string from the webservice method but the inner ajax call is not getting called. I have placed the code here.
[Code]...
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Dec 27, 2010
I feel like I should be beating a dead horse here, but I've done quite a bit of research and this is not making any sense to me. I'm trying to read an XML document returned in the XHR back from a .load() method. I can't get anything to happen in IE, and it really seems like I'm having to use the WRONG way to get it happening in Firefox and Safari.
Here's some code, the handler passed into the .load() method.
This function traces that the length of the results that are "facility" elements is 0. This is absolutely wrong, as there are 5, and if I set my resultsXML var to the string that is the XML from the response, Firefox will accurately count the elements and report them as 5. However, I understand I'm supposed to pass an XML Document object, NOT a string into the jquery object so that I can parse it correctly in any browser. IE always reports the length as 0 regardless of whether I pass the string or object into the jquery object. But even in IE if I trace the value of the responseText string, the full XML document is seen.
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Sep 3, 2010
so i have this "class" defined in a javascript file, "a.cross-link". This enables the ability for users to navigate the webpage in a slider format.it works fine if I directly place the required html code:
<a class="cross-link" href="#3" title="Go to Page 2">View Results</a>but if i have php print out that line for me, it doesn't work:
echo "<a class= "cross-link" href="#3" title="Go to Page 3">$name</a>";(Where $name is some variable)
Note: the php code is just your average sql stuff. here is an interesting observation i've made: if i "hardcode" this this into the html:
<a class="cross-link" href="#3" title="Go to Page 3">View Results</a>
and then i go to generate the sourcecode, this is what appears (this works): <A class=cross-link title="Go to Page 3" href="#3" jQuery1283131847233="30">View Results</A>
but if i have the html made by a php echo statement, it just stays the same - i dont get a jQuery1283131847233="30" generated in the sourcecode.i'm new to jquery and ajax stuff. to me, it seems like the "cross-link" class i have defined in the javascript isn't being applied to correctly.can you invoke javascript from a php echo statement that is formatted to produce html code? here is another thing i believe is true: when the page loads, the javascript loads. the users, through the use of ajax, submitts a sql querey and navigates, using a jquery slider, to another div (where i want the user to go after selecting a resulting link from the sql query). so the javascript is going to execute before the list of results is produced. do I need to rerun the javascript each time new php produced sql data is populated in a div? if so, how?
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Mar 9, 2011
This is something new I have been trying to do because the site I'm doing development for does not support ASP and I find it easier to populate PDF forms in ASP rather then PHP. So what I have done is on my Church's website I have the form that needs to be filled out developed as an HTML form with some PHP serverside code. I am then using jquery ajax to send the form values to the other URL (My own personal webserver where I set up a subdomain) where the values will be dumped in to the corissponding form fields in the pdf template and then emailed to the secratery at my Church.
Here is my problem, $.Ajax can not send to a URL outside of the server it is being run on. Now I have read on various forums that 2 ways around this are to either have a proxy page or by using jsonp. I looked at both options and am still unsure how to handle this. jsonp seems like I would have to rewrite my ASP page to be able to read jsonp values and I really don't know where to begin in my ASP page to get the jsonp method to work. What I found with proxy page also seemed to be problematic because the samples I found did not pass variables to the other page.
I just want a really simple (or well explained step by step) process that will allow JQuery to take the form values filled out on the PHP page of my Church's website and pass them to the ASP .NET/C# page found on my personal server and then take the results (either successful or failed) and return it to the php page to display an appropriate message. Right now I'm using String txtFamilyName = Request.Params["txtFamilyName"]; in my asp c# page to grab the values from Jquery and put them in a variable.
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Jun 21, 2010
I have the following function:
Code:
Then I have in showresults.php lines
Code:
Everything is fine, but I don't know how I can use this with GET. I tried to replace type: "POST", with type: "GET", and then if(!empty($_GET[clickedPage])){... but it doesn't work.
What would be the correct syntax in function to get in showresults.php data with GET?
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May 6, 2011
jQuery.ajax({
url: "/sharedImage",
type: 'POST',
data : fileName,
async: false,
dataType: 'html'
})
Here i am posting the request to a servlet.The call is going to the servlet.But i am not able to get the data (filename which i am sending ) in my servlet. How to access the param value in the servlet.
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Aug 25, 2011
I am wanting to make an ajax call across domains. Im attempting to call an external api with json data and (hopefully) receive a response. It's a mapquest api to obtain driving routes.Is there a mechanism in jQuery that will allow me to make a cross-domain ajax call?
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Apr 23, 2010
I have a little issue with the use of jQuery and a call with the method Ajax. The problem appears with IE7 when I call just after the page was loaded. If I wait 2/3secondes, I don't have this beautiful message :
[Code]...
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