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,
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() {
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:
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;
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:
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..
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.
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()?
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" ?
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 = $('table').filter('[id=oErrorsList]').SelectedRowID; alert(myTable); I am new to this forum and I don't know if this is enough information so I am including an image of part of the page.
full sample script which demonstrates the problem, inner tabs company/department come up as list instead of tabs.I have already tried what People have suggested that inner tabs should also be tabified via jquery but it doesn't work all the examples I have seen e.g.URL... use topmost div for jquery tabs call.[code]
I have an xml with nested repeatingentries. I want to parse it using jquery, I have tried .find methodbut it ignores the child parent relation and consider all as child nodesI want to parse it inhierarchy like first it should show top level categories then if have nested categories and then if have products and so on.
I am currently using jquery to regularly speak to my serverside to "import" a html fragment (which has varying components depending on user selection).What I want to know is:Is there any way I can access the html within that div through jquery?TOP LEVEL PAGE
i'm trying to do the following: select the links one after another and add a class to them. When the next one is selected i want to remove the class from the previous.
there again, I'm using pngFix plugin to work with some png under the doomed IE6 If I apply the fix to the document:$(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]
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?
