How To Make Sure A Function Completes Before Continuing Execution.
Jul 20, 2011
I have a function that I'm trying to modify. It adds an element to the page. The problem is, I require that ClickGeocode() finishes executing before the rest of the code in the function completes. Currently that is not the case..
Event.add(window, 'load', function()
{
Event.add('addressSearch', 'click', function()
{
ClickGeocode();
[Code].....
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Aug 25, 2011
I have an input form with an on / off switch that the user needs to toggle to make changes.The 'switch' is an img and when the user clicks it I get jQuery to load either the 'on' image or the 'off' image.
if ($(this).attr('src') == '../Images/off.png') {
$(this).attr('src', '../Images/ONICON.png');
}
When I set the switch to 'ON' I also get jQuery to enable all the input controls in the form (they are disabled by default when the form is opened). The problem I'm having is that when the user clicks the switch from off to on the first time it has to download the on image (I can see it pulling it down from the server in Firebug) and the controls are enabling before the switch says 'ON'. I don't have this problem when switching back to off again (I assume that the image is cached and can be quickly accessed by the browser):
if ($(this).attr('src') == '../Images/off.png') {
$(this).attr('src', '../Images/ONICON.png');
$('#ucustomertitle').attr('disabled', false);
[code]....
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Aug 16, 2009
I have a hidden spinner div. When my jquery function is called -- I show the spinner. But, how do hide I the spinner div after the ajax request has completed?
$(function() {
$(".pagination a").live("click", function() {
var loader = $('#loader')
loader.show() // <-- hidden loader div
[Code].....
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Jun 28, 2010
I have a table with a number of rows in it each with a delete link which calls $("#" + id).remove(); of course passing in the right table row id each time. I also have a row at the bottom that has divs with totals of columns in each row. After I add a row to the table I call a function that goes through each table row, gets the values that I need and keeps a running total. I finally update the divs in the last row with these totals. However, when I do the row.remove() and then call my calculate function it never completes.
In my debugging it looks like the tblWorksheet table that I'm trying to get to, to get it's rows, is no longer recognized. So I'm wondering if instead of removing the row by the id if I need to call the remove function on the table to tell it to remove the row. If so I'm not sure of the syntax to do that. The following doesn't work.
$("#tblWorksheet").remove("#" + id)
If that's not the case, why I couldn't get to my table after removing the row?
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Mar 8, 2009
I want to do exactly as mentioned on the title. You can consider this like surfing pages in traffic exchangers or PTCs. The functionality is exactly like those, though it is not for those.
This is what I have now.
Code HTML4Strict:
Currently, it shows "Page has been loaded" before even showing the "Please wait" part.
Secondly I changed the function to the following
Then it said info is null....
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Jan 27, 2011
How to know the execution time of a function? For example, which of these functions run in less time? That is, which of these functions are more weightless to run?
document.getElementById("my_image").src = "images/picture.png";
//or
document.getElementById("my_image").style.webkitTransform = "rotate(45deg)";
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Aug 8, 2011
I currently have a situation where I have images that load when a user scrolls to the bottom of a page. I also have part of the same function call .remove() on the top 2 images if the number of currently loaded images exceeds 10. The trouble that I am having lies in the .remove() is causing the scrollbar to move down, calling the image-loading part of the function again (essentially a chain reaction of image loads and elements being removed if a user scrolls down while images are being loaded).
I was wondering if I can use setTimeout or a similar function to prevent .remove() from executing until images have been completely loaded?
$("#message").html(calcScroll);
if (calcScroll == 0 && curPageIndex + 1 < totalCount) {
$("#message").html("loading new images");
window.setTimeout(function () {
[Code].....
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Jul 19, 2009
is there a way to run js functions one at a time? example, this is part of some code i
have:EvalSound('CorrectIs');
WrongAnswer();
PlaysRemain();
[code]....
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Dec 12, 2011
Suppose we have following javascript codes: Case 1.
var foo = function (){
var x = "hello";
var bar = function () {
alert(x);
} return bar;
} var bar_ref= foo();
document.write(bar_ref()); // it pops up "hello" and print-outs "undefined".
If we modified above code slightly, shown as follow: Case 2.
var foo = function (){
var x = "hello";
var bar = function () {
alert(x);
} return bar();
} var bar_ref= foo();
document.write(bar_ref()); // it only pops up "hello".
As you can see, Case 2 modified the return value from "return bar" to "return bar()," which won't cause the "undefined" output. To me, it looks like when the JS interpreter executes the line "bar_ref();" it triggers the execution of function "foo", besides both "return bar" and "return bar()" do the same job which is to execute function body of "bar".
The only difference is that after the execution of function bar, its function body does not exist anymore, so when the interpreter executes the line "return bar;" it follows the function identifier "bar" and ends up with "undefined". This is why the Case 1 gives us "undefined", but I am not quite clear about why the Case 2 can trace down to the function body of "bar". Do you have any ideas about such difference outputs?
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Mar 18, 2007
How to avoid the execution of a function at the time of defining.
Here i am giving the details.
I am creating the following div container through DOM.
<div id="content">
<a href="#" onclick="displayDiv('content')" Click</a>
</div>
The Code is:
var category_list = document.getElementById('category_list');
var dom_div = document.createElement('div');
dom_div.id = 'content'
var dom_link = document.createElement('a');
dom_link.href ='#'
dom_link.onclick = displayDiv();
val = document.createTextNode('Click');
dom_link.appendChild(val);
dom_div.appendChild(dom_link);
category_list.appendChild(dom_div);
The displayDiv Funcion
function displayDiv()
{
dv = document.getElementById('content'); //Here is the error.
}
The Problem is when the following script:
dom_link.onclick = displayDiv('content');
is executed it is calling the function displayDiv(name)
Here we have the code
document.getElementById('content');
which throws the error.
The reason is the div container is not yet created.
What I need is the function should be called only on the click event. It should not be called while I define it to the Click Event. (ie it should not be called at the time of defining)
How to achieve this.
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Dec 28, 2010
function test()
{
first();
second();
[code]....
i have this type ofsituationin my code, now many time function three is called before first and second complete execution.i want third to wait until first and second finish execution, dont want to use delay
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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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May 17, 2010
I've gotten it so my XMLHttpRequest is able to send a synchronous call to a non-http url and get a response. But after getting the response, how do I send another message to the remote server?
Whenever I try to call xmlHttpRequest.send(...) again, it tells me the state is not valid for that. How do I send data and commands to the server after inital connection?
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Jan 19, 2010
I'm using .each and .delay to have a background color crawl down some list items, as below. But I can't figure how to then trigger a change, such as another background color, after all the .each iterations are complete. Everything I do with the returned object happens immediately.
<script type="text/javascript">
var saveObj;
jQuery(function(){ [code]....
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Apr 17, 2011
http:[url].....If you're on fast internet, you might not even see it, but I don't know how they do two things upon entrance.
1.) Allow the content to load (and function as a preloader)
2.) Get everything to fade in after loader completes. Is it just a div overlapping everything where opacity turns from 1 to 0 or what?
I know this loader must be javascript, but this is all I can find when viewing the source, so I don't know if there is php involved but I'm guessing there is.
<div id="csd3-jscheck">
<h1>Color Scheme Designer 3</h1>
<div id="csd3-load">[code].....
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Sep 7, 2006
Is it possible to pause the script in a way, until a scriptaculous effect complets? At the moment, the effects are half way through scrolling/fading, while the script continues.
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May 12, 2009
'm new with JQuery and more especially withthe validation plugin. and implementedthe validation plugin for the newsletter formIf you look at the bottom right corner, you can try to enter a datainto the input field.... but as soon as you type one character afterthe "." (that follows the domain) the whole page disappear...I can't understand what's happening
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Mar 29, 2010
I have a webpage with a world clock. On the clock page are 12 buttons (World Cities). When the user clicks these buttons. The time for the relevant world city is displayed. (The time is updated by an on.click function for each individual button. That either subtracts or adds the hours from GMT. For example. If the time is GMT 18:00:00. The user clicks the Paris button and the function adds 1 hour to result in 19:00:00)
However. If the GMT time is for example 21:00:00 and the user clicks the Tokyo button (GMT+9 hours). The time displayed is 30:00:00. So I have been trying to work out how I can stop the time adding past 23:59:59.
[Code]...
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Jun 11, 2011
I have a real perplexing issue. In two separate "projects" I had code that displayed checkboxes - when clicked, they would fetch information from a db and display it in the div below. I had code that displayed a jquery date-picker - when clicked, it would fetch information from a db and display it in the div below. My issue comes with this:
[Code]...
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Jul 23, 2005
I have a Perl script that's called as a CGI to handle the form
submission from a browser, thru which a user from the web can up load
an image file. I would like, when the user clicks the "Send Image"
button, to pop up a small window containing an animated (working -
please be patient) .gif while the image is uploaded from thier computer
to the server, once the transfer is complete, I would like to close the
pop up window and then load the new page in the original window.
That being the said, the Perl script won't be called at all until the
upload is finished, at which point its too late to do something like
what I am describing here.
Is there a way to open this popup window as possably a child of the
current window (inwhich the user clicked the button) so that the "Be
patient window" displays the gif, then once the upload is complete and
the Perl script is finaly called, which would then update the original
window causing the popup to close automaticly?
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Jul 28, 2011
How would you make a function trigger a other function?
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Jul 20, 2005
It prints 0,1,...,9, but you cannot see the word "hi". It seems that it prints "hi" then executes the listnum function. But the listnum function is placed before "hi". Could you
give me some info on order of execution?
<HEAD>
<SCRIPT language=JavaScript>
function listnum() {
i=0
do {
document.write( i + "<br>")
i++
} while(i<10)
}</SCRIPT>
</HEAD>
<BODY onload=listnum()>
hi
</BODY>
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Jul 23, 2005
Given a page with a "header" and "main" frame, is there some way from the "header" frame to initiatere-execution of the JavaScrip/HTML code in the "main" frame? I don't want to have to reload "main".
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Nov 23, 2005
I would like to have two actions for one event. But I want the second action to trigger when the first one action completes. Is it possible to do this in javascript? I'm using the onclick event.
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Jun 24, 2009
is there any specific function in Javascript / jquery which delay the functionality
I use SLEEP() funciton in php to add delays .
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Nov 29, 2005
I would like to have two buttons on the page. When visitor clicks on first, I would like to start looping through numbers for example from 1 to 100. When loop gets to the end, I would like to start it over and stop it when user click on the next button.
My concern is if this is safe. What if user waits for 1 minute or more to click the second button which should stop the loop and pick up the number where it currenly is? Will it cause browser to warn user that the script is slowing down the browser? How can I avoid this?
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