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)";
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.
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?
We contract security services with Thawte and have become frustrated with their servers showing lag time. Our site basically runs a script to go to Thawte's site, executes code and returns a value to show protection. If their server is running very slow or down, the script line takes down our entire site because it can not complete execution. Here is the code:
<!-- THAWTE CODE - Comment Out when Thawte is having issues ********************* -->
<tr>
<td>
[code]....
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].....
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]....
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?
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].....
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
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:
i am using jquery for ajax request response.Is there any javascript functions which can cause some time delay like
ajaxStart(function() {
showAnimation();
delay(5000s):
});
how to call two functions at the same time... and is it possible calling them with the onShow command?
View 3 Replies View RelatedI want to put a time delay on a function. This is how I'm going implementing it, however it's not working......
function loadXMLDoc()
{
setTimeout('loadXMLDoc()',5000);
[code].....
I have an unordered list of links, which on click append a new <li> with the appropriate image, and then slide the whole <ul> left, allowing the image to show through the window. My problem is that after the first time around, the rest of the function executes, but the animate left doesn't.[code]
View 2 Replies View RelatedI am trying to taking this embedded script
Code:
<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
var strDay;
if ((now.getDate() == 1) || (now.getDate() != 11) && (now.getDate() % 10 == 1)) // Correction for 11th and 1st/21st/31st
strDay = "st ";
else if ((now.getDate() == 2) || (now.getDate() != 12) && (now.getDate() % 10 == 2)) // Correction for 12th and 2nd/22nd/32nd
strDay = "nd ";
else if ((now.getDate() == 3) || (now.getDate() != 13) && (now.getDate() % 10 == 3)) // Correction for 13th and 3rd/23rd/33rd
strDay = "rd ";
else
strDay = "th ";
document.write(dayName[now.getDay()] .....
// End -->
</script>
and turn it into a function called time.
XHTML Source
Code:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "[URL]">
<html xmlns="[URL]" xml:lang="en">
<head>
<title>Test</title>
</head>
<body>
<strong><script type="text/javascript">time()</script></strong>
</body>
</html>
Javascript Source
Code:
function time() {
var strDay;
if ((now.getDate() == 1) || (now.getDate() != 11) && (now.getDate() % 10 == 1)) // Correction for 11th and 1st/21st/31st
strDay = "st ";
else if ((now.getDate() == 2) || (now.getDate() != 12) && (now.getDate() % 10 == 2)) // Correction for 12th and 2nd/22nd/32nd
strDay = "nd "; .....
But when I do the out put returns nothing. Why this might be. I initially thought that I had the formattingsyntax wrong for the function it self but this doesn't seem to be. [URL]
I've been having trouble with a seemingly simple function...I have a form where 3 of 5 field values are generated by a script tied in with Google Search (like a business address). The user is prompted to enter their business license #, and as soon as the input field has val().length == 9 characters, I want to execute an ajax call among some other functions... The problem is the function works when there are 9 characters in the field, but only after I generate a new and different set of values for the generated fields (i.e. the first generated values, coupled with those 9 characters isn't enough to set off the function, although when i use a second set of generated values, the function kicks in). Here's the applicable code...although there's a lot more to the picture...
[Code]....
Code:
function randOrd(){ return (Math.round(Math.random())-0.5); }
var cardArray = [
[1, "hundo", "dog"], [2, "kato", "cat"],
[code]...
How come the random function has no effect on the second array it was given to randomize?
We're trying to enhance and optimize the forms in our projects with jQuery, but I don't know if something we want is possible. Nowadays we are using simple javascript to enable and disable elements in our forms, we have a part to execute when the document is loaded and another that is executed with the interaction of the user.
For example, we have a simple select with "Race" : "Caucassian", "African" and "Other", when the user selects something we enable or disable a textfield (where the user specifies the other race) depending of the election; and when the user saves the data and reopen the form to modify the elements, we execute a function that evaluates the value of the select (previously loaded from the database) and enable or disable the textfield.
We need to optimize this because we've got really large forms (sometimes with 400 different fields) and it would be great to do this in 1 step and have one file with the behaviours instead of doing this once for the interaction and once for the reload. I've been thinking in a way for subscribing to the onchange and execute it at the same time, but I don't know if there's any way of doing that...
function update(value1){
doAjax("behind_scan.php" , "id="+value1);
}function doAjax(url , str ){
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null){
alert ("Browser does not support HTTP Request");
return;
}url=url+"?"+str;
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}function stateChanged(){
if (xmlhttp.readyState==4){
//document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
//alert(xmlhttp.responseText)
document.forms.myform.scanner.value = "";
document.forms.myform.scanner.focus();
}}function GetXmlHttpObject(){
if (window.XMLHttpRequest){
// code for IE7+, Firefox, Chrome, Opera, Safari
return new XMLHttpRequest();
}if (window.ActiveXObject){
// code for IE6, IE5
return new ActiveXObject("Microsoft.XMLHTTP");
} return null;
}
This pages calls a function on a separate php page to run 2 mySQL queries, the value must be put in the text 3 times in quick succession before the database is altered. I've tried all the other functions and they seem to be fine, AJAX is my weakness but I need it for the main functionality of my website. I need this to work.
i've got a program that gets input from a user, and then stores it in a cookie. That bit is fine, what is a problem is that its just overwriting the data each time a new entry is made, i believed this to be something do do with it not being numbered entry's, so i added a number into the entry, but for some reason it wont add 1 to the number variable each time the function is called
<html>
<head>
<title>Grader 101</title>
[code]....
I'd like to have basically rotating images on my page but I'd like to pull them from a database. how to set an image rotation like every 10 seconds but have it call a function which will use AJAX to be able to pull the images from the database?
View 3 Replies View RelatedI have a for loop which has a length of 8. It's meant to run through an array of objects and bind a click function to all of them. So the alert should run a range 0-7 but instead it returns 8 no matter which object is being clicked.
for (var j = 0; j < bubbleArray.length; j++) {
$('#icon' + j).bind('click',function() {
var icon = this.id;
this.diam = $(this).width();
[Code].....
I've got following function:
[Code]....
I would like to run this in recursive mode, and I'm starting the function with:
$(function(){
$.bubbles();
}
The problem is, that function works only one (and a half) time. Console shows: start callback start I have not idea what is a problem. Function needs to be run constantly.
Is there another JS function that I can use to force a time delay without having the code continue to run? I'm using the setTimeout() function but the call to this function doesn't stop the code flow. I need to stop the code flow while waiting. I guess I need a Sleep() type of JS function.What I'm trying to do is display some blank text on the screen using a for loop (I'm using <BR> to give the appearance of "opening up" a vertical window section in the browser) and I need this 'text' to complete before allowing the following code in the function to execute. The following code will display a Table with rows of data. I'm trying to use a timing function to give a visual impression of a window opening up just before the data displays.
View 1 Replies View RelatedI am trying to make a time/date function update automatically. when i view the page i get the right time, but i have to refresh the browser in order to update it. How can i do it to automatically update itself.
i want the clients time not the servers time.
<script language="JavaScript" type="text/javascript">
var d=new Date();
var monthname=new Array("January","February","March","April","May","June","July","August","September","October","November","December");
[Code]....
I have a web page a lot of thumbnail images arranged in a table. I would like the user to be able to click on the thumbnail to open a window with a larger view of the image.
So I wrote a JS function to accept a URL as the argument and open a new pop-up window with the given parameters. I need this function to potentially run multiple times from multiple links (in this case images) on the same page. However, after the first time I click the link, the function runs, and I close the pop-up, the function will not run again if I click the same or another link on the page. If I refresh the page, the function will work once and then not again. Is there a buffer I need to clear or something to reset to allow multiple links to work?
I have tried the function call in a whole slew of ways. Here's my current code (I "..."'ed out the URLs for brevity):
<script type="text/javascript">
function zoomWindow(url)
{
zoomWindow=window.open(url,"", "toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, copyhistory=no, height=645px, width=550px");
[Code]....