JQuery :: Return Value Of Nested Functions Is Always Undefined?
Jun 22, 2009
I am just trying to learn a little bit about jQuery.Now I have a problem with returning a value from a function.The following code works fine, when I tested it with alert(price) or any other way of echoing the value directly. But if I try something like var test = getPrice(324), the variable test would always be undefined.
function getPrice(id)
{
$.get('db.xml', function(d){[code]....
I assume that the nested functions are part of the problem,
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Aug 20, 2009
I have written a number of functions designed to return frequency data on 1000 randomly chosen numbers using different math functions for the rounding. I would like to include all of these functions within the wrapper of another function so that only one call is needed to get returns from all of the 'inner' functions. However, while each of the functions works in isolation, the moment I wrap them in another function they stop working. :confused:
The following code is one of the functions 'frequencyWrapperOne' that has been wrapped in the function 'testWrapper'. A call to testWrapper does nothing.
function testWrapper()
{
function frequencyWrapperOne()
{
[Code]....
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Jul 17, 2009
I am attempting to use the return value from a nested ajax function as the value for a variable in its parent. However, despite being able to successfully assign the variable within the nested function, it reverts back to its original value after the child function has terminated. Below is the code:
[Code]...
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Jan 30, 2007
I have this code:
Code:
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
</head>
<script language="javascript" >
function outer(data)
{
var operand1 = data;
function inner(operand2)
{
alert(operand1 + operand2)
}
}
</script>
<body>
//<input type="button" value="1" onclick="outer(3)(2)" />
//<input type="button" value="2" onclick="outer(3)(2)" />
<div id="target"></div>
</body>
</html>
How do I call the inner function and pass operand?
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Mar 30, 2010
How do I return false (or true) from within a nested control structure.For example, I'm using jquery and I would like to do some basic validation:I want to pass to a custom function named checkDefault every element with the class required.
function checkDefault(elem) {
elem.each(function(){
if(elem.val() == elem.attr('title')) return false;
[code].....
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Nov 23, 2011
No syntax errors - nothing should be getting in the way of this. All I'm trying to do is implement a different an "onclick" call, which calls the function and AJAXes in some values. Here's my code:
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.0/jquery.min.js">
</script>
<script>
$(document).ready(function() {
[Code]...
I must be doing something wrong. I've tried everything...and now even $(document).ready() doesn't work
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Jun 14, 2011
Why do we place 'return false;' at the end of jquery functions?
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Oct 23, 2009
I have nested markup like this
Code HTML4Strict:
<li><span></span></li>
I have different click functions, one attached to the li and the other to the span.
When I click on the span they both run. Ending the span's event handler with return false; prevented that from happening, which is what I want. But I'm not sure I understand why it worked.. I know, for example, if I was clicking on an anchor, return false would stop the browsers default action of following the href value. Same for submitting a form, return false will stop this. I don't think I understand why this would stop a completely different function from being triggered..
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Feb 27, 2006
I'm having a problem. I was able to get the edit working fine. I was able to get it to hide the current div and go to a different div. When I combine the two, the edit works but I cannot go to the different div.
I'm thinking something is missing here?
function goto_testDiv()
{
return formCheck(this);
document.getElementById('startDiv').style.display = 'none'
document.getElementById('testDiv').style.display = 'block'
}
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Apr 29, 2004
PHP Code:
function mnu() {
var thismenu=this;
var mDiv = document.createElement("div");
mDiv.getVisibility=function() { thismenu.getVisibility(this); }
alert(mDiv.getVisibility());
document.body.appendChild(mDiv);
}
mnu.prototype.getVisibility=function(div) {
if (div.style.visibility=='none' || div.style.visibility=='hidden') {
return 'hidden'
}
else {
return 'visible'
}
}
so i attach a function to mDiv, which (should) return visible or hidden, but it doesn't, i get an undefined
but when i put alert boxes in the function itself (in the if-clause), it gives me the correct values....
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Jun 7, 2009
I have a problem that 'test' is not passed. The following function alert undefined, but it should alert test. Why that?
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Feb 4, 2006
I have the following script:
function myFunc() {
// some code to do with AJAX
http_request.onreadystatechange = function() {
// do some things
return "a string";
}
}
alert(myFunc());
However, when I return "a string"; I want that string to be returned by myFunc() (and therefore alert'ed). What seems to be happening is that the string is being returned by the http_request.onreadystatechange = function() { } function, and myFunc() just returns false. How can I make the string be returned by myFunc()?
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Jun 24, 2006
I keep getting the function first as being undefined for some reason I
don't get.
I'm trying to use setTimeout() to pause execution so that an image in
my web page is switched every two seconds for another. Code:
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Jun 3, 2010
All is on the title, sorry for my english, i'm french :) I have an html page with style
<style>
#mydiv {
margin-left:auto;
margin-right:auto;
width:250px;
}
</style>
with jquery, i try to get the margin-left ($('#mydiv').css('margin-left'), but the function return 0px, unable to retrieve the good value (auto) anyone has idea to retrieve the value "auto" when margin-left is "auto" ?
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Jan 21, 2010
I'm trying to access an ID nested in a DIV which for the life of me I can't figure out:
<div class="verificationTextBox">Verification:
<a id="download_now" title="Review more about CAPTCHA" rel="#modal1" > </a></div>
<script type="text/javascript">
[code].....
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Mar 9, 2011
I develop pages within a third party web application. The page output has tables within tables. I have an 'id' for the table I want, 'oErrorsList' which I then want to find the value of 'SelectedRowID'. I have tried the following code but I get nothing. var myTable.text = $('table').filter('[id=oErrorsList]').SelectedRowID; alert(myTable); I am new to this forum and I don't know if this is enough information so I am including an image of part of the page.
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Aug 7, 2010
I have nested structure of div something like thi [code]...
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Jul 22, 2010
I would like to insert a div into a nested list...to make this:
<ul class="a">
<li class="2"><a href="***">Something</a>
<ul>
<li>Something else...</li>
[Code].....
I am trying to make the each nested ul more specific to help with styling.
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Aug 31, 2010
I want to insert a nested <div> into an existing span in a number of table cells, each of which has different content, so:
<td><span>Content</span></td>
would be 'converted' to
<td><span><span>Content</span></span></td>
I have tried:
$('tr td span').prepend("<div>");
$('tr td span').append("</div>");
However, this actually seems to produce
<td><span><div></div>Content</span></td>
I have also tried something along the lines of
$('tr td span').html("<div>" + $(this).text() + "</div>");
but have been having trouble using the this keyword to produce the required effect.
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May 14, 2009
I have a series of td's that reside within a nested div. the <td> has no class value and I would like to inject a css class value.
<div class=x>
<div class=y>
<div class=z>
<table><tr>
<td>x</td> want a class in these tds
how can I do this with jquery?
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Sep 16, 2009
full sample script which demonstrates the problem, inner tabs company/department come up as list instead of tabs.I have already tried what People have suggested that inner tabs should also be tabified via jquery but it doesn't work all the examples I have seen e.g.URL... use topmost div for jquery tabs call.[code]
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Mar 31, 2010
I have an xml with nested repeatingentries. I want to parse it using jquery, I have tried .find methodbut it ignores the child parent relation and consider all as child nodesI want to parse it inhierarchy like first it should show top level categories then if have nested categories and then if have products and so on.
<products>
<category>
<categoryid>2</categoryid>
[code].....
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Jun 17, 2011
I am currently using jquery to regularly speak to my serverside to "import" a html fragment (which has varying components depending on user selection).What I want to know is:Is there any way I can access the html within that div through jquery?TOP LEVEL PAGE
<div id = "window">
<p> loading...</p>
</div>
[code]....
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Aug 17, 2011
i'm trying to do the following: select the links one after another and add a class to them. When the next one is selected i want to remove the class from the previous.
[Code]...
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Aug 23, 2009
there again, I'm using pngFix plugin to work with some png under the doomed IE6 If I apply the fix to the document:$(document).ready(function()
{
$(document).pngFix();
});
It fixes the first png in the site, in this case one applied to a wrapper div.Inside this wrapper I have another div (menu) which contains an ul with some png's, for those, the pngFix is doing nothing...Supposely, this fix is applied to all the elements inside the document, but it doesn't...[/code]
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Apr 1, 2011
I have a html page with nested tables (horrible I know, but none the less what has to be done).
Example:
<table class='parent_table'>
<caption>Title</caption>
<tr><td>
<table class='child_table'><tr>
<td>Build</td><td>32bit</td><td>64bit</td><td>Date</td>
</tr></table></td></tr>
I am using this jQuery:
$('.parent_table').find('tr:odd').addClass('alt');
However, the alt class is not being added to the parent tr tags...When I just do this:
$('.parent_table').find('tr').addClass('alt');
It successfully adds the alt class to all the parent_table tr tags...Why would that work, but the odd selector does not?
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