JQuery :: Manage Scope In Ajax Application
Dec 22, 2011
how to manage the script scope on a full ajax application Let me explain a scenario
- Pages are loaded dynamically in a div,
- pages are php files
- pages contains scripts tags (static and generated via php) depending on
context
Load Scenario :
1. master page load pages via $.load jquery function
2. page are inserted and the script is executed (mostly input events or live events)
when i select another page (just imagine a combo with all pages listed), the Load Scenario is executed again... the 2 js code line that matter in the master page
[Code]...
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Jan 5, 2012
I can't seem to get the row striping working with my application. The table data is being pulled in via AJAX and for some reason that is interfering with the striping code. It's hard to debug also because the table info doesn't show up in a view source.
The code I am using for the striping and AJAX is:
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript">
$("tr:odd").addClass("odd");
</script>
[Code]......
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May 6, 2011
I've googled the heck out of this, and although I'm finding plenty of solutions, I'm having trouble understanding them. I'm very new to jquery, and brand new to ajax. My problem is, I have a php application using several jquery effects. I've just started learning ajax and it is going really well, this stuff is incredible! But all the ajax loaded data loses the jquery effects. I get that it is a DOM issue, and I've seen that others have used "live" (i think?) to fix this, but I honestly just have no understanding of how toimplementanything that I'm seeing.
This is part of my ajax...
And this is the main effect I need to get working.
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Feb 9, 2011
This could appear under Ajax, for example, you could have multiple objects that make a singular ajax call (say an RPC-like request) and you need to update the object that made the call during the callback with the result, but it doesn't have to be. The particular problem I'm thinking about happens to be ajax, particularly with multiple objects accessing the same ajax request (meaning I can't use a global or temporary variable).
One way that seems like it would work (just thinking about it in my head), is to create a hash, and to pass the key through the request, store the key in the response, and pick it up on the callback side. Then remove the item from the hash when done.
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Jul 15, 2011
I'm getting the following error: attempt to run compile-and-go script on a cleared scope [Break On This Error] if (xmlhttp.readyState==4 && xmlhttp.status==200)
when i try to run the following code in mozilla firefox:
gethint.html
<script language="javascript" type="text/javascript">
function showHint(str)
{
[Code].....
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Nov 14, 2006
I am using ASP to make an application. What I want right now - is to
make the self updating list of the users online - based on thier
cookies. In my opinion all seems to be writen well with it's logic, but
computer thinks otherwise. I use application("loged") to store the
cookies of all users. Code:
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Feb 25, 2011
I load a static page, inside this page there are links like this:
<a href="some/path/here/with/id" class="update">Click</a>
With this function I can change the link value (Click) with a second value depending on ajax response.
$('.update').click(function(event) {
event.preventDefault();
$.post('script.php', {}, function(data){
[code].....
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Aug 3, 2011
I am trying to modify with jQuery the content of a child window but for an unknown reason it does not work. I would be gratefull if someone may explain what (how) happend. Here is my code:
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
// Open a new window with a bare html file
var newWindow = window.open
[Code]....
What I expect (you should already have understood) is a new div to be appended to my child window body. The div (and its text) is effectively inserted (in new child's window) but then disappears in the process. Once I look at the generated code, the div is not in child's DOM.
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Mar 1, 2006
I have the AJAX-script. It eats memory about 4Kb per one callback.
Script reflects messages from server application in real-time. I form
messages, and put them into the iframe. If mesages more than 40 last
message delete. Can you check the script and say about my mistakes? Code:
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Apr 21, 2011
I'm writing an application with PHP that let me have statitics about visited pages for my web site. to save informations needed i use an ajax query with the unload event. The problem that i have is titme to time the script uses with that ajax query doesn't work especially when i stay long time in a page.
This is my code?
Why it works most of time but sometime doesn t work? is there any specifications to take for the unload event ?
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Sep 21, 2010
I got 3 sections on the site, at the bottom of each are 5 bars which are used to change the text color. I'm trying to minimize the code, so I created an array which contains all the colors, but I'm not sure where to put the call to the array. If I put it in the for loop, the selected color will always be green no matter which color you click. The bars should also go up to 40px when clicked and when the next bar is clicked the current bar at 40px should go back to it's originals size(20px)
this is the JS
Code:
var colors = new Array(4);
colors[0] = "#ed1c24";
colors[1] = "#736257";
colors[2] = "#620460";
[Code]....
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Apr 1, 2009
here's the link to the script: [URL] I got the script working, but I can't manage to move the numbers from the top...to the bottom. I tried nearly every combination I can think of. Here's a screenshot of where the numbers are placed currently:
[Code]....
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Dec 7, 2010
I got a problem with the JQuery Cycle plugin, I can't manage to make the "goto" working.
Here is the code :
And here is the HTML :
What's happening is when I click on "test", it does show the alert but it does not go to the 4th slide. Instead, It acts as if it was the first call, therefore the slideshow starts again from the 1st slide with the default options.
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Jul 31, 2011
Is there a way to use the before() method to insert a div before another div, and then select that new div to change the contents of that div?
For example, I want:
To change to:
And finally to:
What's the best way to do this? I can't manage to "grab" the newDiv.
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Aug 24, 2011
I have a shopping cart where if a user have problems of buying products or transactions, I want to give support via a chat programme. I want to reply users in different chat threads not like in a chat room as other people dont want to see others chat.I am new to this subject.
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Apr 4, 2011
I'm showing a form in a Simplemodal dialog in combination with ajaxForm() to redirect the resulting page to another DOM element. The success function of ajaxForm() closes the modal dialog.The resulting page in the other DOM element has no access to the jquery function $(). When I load a page using ajax into the DOM element there is no issue access the jquery function, this only happens when I redirect the resulting page from the ajaxForm() function.
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Mar 8, 2010
How this can be done in jquery,
Let me explain the question using an example:
<html>
If you run it, the alert messageis "pic2", so jquery sees the entire document, but is there a way to easily restrict it to the sub-tree under the current node (in this case the sub-tree under the span node, since that's what was clicked)? Yes, I can do something like alert($("#div1 img:eq(1)").attr("alt")); //undefined as expected
But I am looking for a solution that's more dynamic, so I don't need to hard code #div1.
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Feb 2, 2011
New to javascript/jquery and have a question regarding scope. I want to bind an event within my class so it calls one of the class methods. The problem I run into is that the event handler is a anonymous function that runs outside the scope of the class, therefore it doesn't see the class methods or properties.
Is there a proper way to deal with this:
Sample code:
function myObject(tag) {
// properties
this.myvar = 'test';
this.tag = tag;
// methods
function sendRequest() {
alert(this.myvar);
}
// initialization
$(this.tag).click( function() {
this.sendRequest();
});}
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Jul 19, 2010
I'm having trouble letting functions I defined in jquery read javascript global variables I defined elsewhere.. for example I have a function defined within my jquery
$(document).ready(function(){
function performTabSlide() {
// do something with currentPosition;
[code].....
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Aug 23, 2010
I've recently started developing javascript using jQuery and so far I'm really enjoying it.Being a professional programmer (mainly C, C++, java and python) there is one thing that's been puzzling me regarding variable scope and unnamed function declarations. Let me exemplify:
------------------------
var sum = 0;
$(xmlobj).find("item").each(function(){
[code]....
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Feb 14, 2011
I'm a little puzzled over the possibility of accessing an array. I've declared the previd id - in the proxy.invoke call which works just fine (we have already implemented an .each loop which also works. My problem is this - after accessing the proxy.invoke function, the previd is populated correctly with push but after the call, we cannot seem to access the previd array to make a join to a string. Here's the basics of the code.
var previd = [];
proxy.invoke("validdateIDCard", p_caregiverid,
function(validaterID) {
var valcard = validateID;
previd.push(valcard);
}, onPageError);
var finalvalue = previd.join("|"); <-- this is where the problem lies - cannot seem to read the variable...
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Sep 16, 2011
I'm using jQuery's getJSON method to get the current date from a foreign server. I however, should this request fail (e.g. if the server is down), I want to have my page fall back to a sensible default.
What I'd like to do is this:
var date = "sensible default"
$.getJSON(url, function(data){ date = new Date(data.datetime); });
if request was successful date will contain new Date(data.datetime);
if request was unsuccessful date still contains "sensible_default"
What I have is this:
var timezone = "Europe/Berlin";
var date = "sensible_default";
$.getJSON("[URL]"+timezone+"&callback=?",
function(data){ date = new Date(data.datetime); });
alert(date);
But this produces an alert of "sensible_default", despite the fact that the getJSON request fired correctly.
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Jan 21, 2010
I've been programming in jQuery for some time now, and for the first time, I came across an issue where I am writing out the location of a TD with an ID="step" to get the innerHTML with html(). I receive a null value, but when I use td:first within the chain of elements, it works.Has anyone experienced this issue or have any idea why this is not working? I've tried other TDs with diffirent IDs within the same row, and the same null result happens.Is there a possible limitation to the numbe of IDs used within the chaining of the $() call?
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Jun 7, 2009
I'm trying to create an endless animation similar to a screen saver, here an image floats around the screen, fading in and out. I would like to stay out of the global namespace, so I'd like to use the callback to animate() rather than getTimeout(), which seems to operate only on functions in the global namespace. Please correct me if I'm wrong about that. But I'm having trouble maintaining the scope I want for the callback I want "this" to refer to my Animation object, not the HTML element. I understand many folks have solved this problem for events by using bind() or live(), but I am wondering how to do this for animate().
[Code]...
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Sep 30, 2010
I can't use the value returned by $.post() method out of the scope of success function.
For instance in below example myvar alerted as empty even though var is alerted with a value. Besides, hide does not work in the scope of success function.
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Oct 19, 2011
Ineed to pass two variable in a querystring from one application (in PHP) to another (in ASP.NET). It's a one way transfer...That is I need to encrypt it in PHP and decrypt it in ASP.NET (c#). The data will be anywhere from 5 - 15 characters..only letters and numbers.
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