DOM Objects Immediately Available To Script?
Dec 9, 2005
Given the following in the <body> of an HTML page:
<form name="test" action="action">
<input name="test1" value="abc">
<script type="text/javascript">
alert(document.forms['test'].elements['test1'].value);
</script>
I have two questions:
1. Is there anything in the specs/standards that says the <form> and <input>
objects must be available for reference in the DOM as soon as they are
parsed in the document, so that the script will succeed? I couldn't find
anything.
2. If nothing is in the specs/standards, then does anyone know of any
browsers which would not make the objects available for script immediately?
I'm wondering if, for example, a browser would only make the DOM available
to script once it is fully loaded and parsed?
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Apr 17, 2011
Is there a way in Javascript or Jquery to return an array of all objects underneath a certain point, ie. the mouse position. Basically, I have a series of images which link to various web pages but I have a large semi transparent image positioned over the top of the other images. I want to find the href of the background image that the mouse pointer clicks over.
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Jul 9, 2010
So I'm trying to write this simple little form, where you input values and it calculates something and spits back the answer in a text box. I just started out and this is what I have so far. The problem is, the javascript line I use to change the value of the textbox in order to show the result doesn't work. The value I change it to flashes, and then disappears.
So for example, I hit the "Solve!" button and I see the word "current" in the textbox, but then it just disappears. I'm working in firefox.
<html>
<head>
<script type="text/javascript">
function calculate() {
[Code]....
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Sep 5, 2009
Is there a better way to extend object with internal objects?
$.fn.bestShow = function(s) {
var d = {
width: 0,
height: 0,
order: "numeric",
orderBy: "",
[Code]...
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Mar 25, 2011
$("#aPlus").click(function(){
Why second $.ajax is not immediately activate.
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Aug 17, 2009
I wrote a script to construct chords to make writing music easier for me. The script works, it shows there are no errors, and it does what I want it to do, but the page keeps refreshing almost immediately after the Alert box goes away. I have no idea whats going on. I don't know if it's the JS or the HTML part of the page.
<head>
<script>
function calc()
{
var type, note, root, third, fifth, seven, ans;
var notess, notesb;
[Code]...
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Aug 10, 2010
var x = "blahblah".indexOf("blahblah");
if (x !== -1){
// do something with x
[Code].....
Is there some syntax/code structure that allows something like this:
if ( (var x = "blahblah".indexOf("blahblah")) !== -1){
// do something with x
alert("Present");
[Code]....
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Feb 16, 2011
I'm using an ajax script that receives a value into an input box and thus performs a function. I need to invoke the function immediately after the input box has a value. Currently the box has to lose focus in order for the function to work.
[Code]...
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Feb 13, 2011
am having a little bit of trouble with a callback function that seems to be executing immediately rather than waiting for the animation to finish.
[Code]...
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Feb 18, 2011
I have written code that looks like this. The code works great for about a split second and then the page refreshes itself and I am back to square one. How can I prevent the page from refreshing itself and wiping out my jQuery changes. The page I am working on is located here [URL]
[code]
<script type="text/javascript" src="jquery-1.5.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
[Code].....
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Jun 12, 2009
In my application I've the small line:
THis is very nice effect and more easy to use than the CSS method. I'll use this for some hover states.
Problem is that the opacity starts when the page is loaded. So you see the images 'flash' from normal to 'opacity: 25'.
Is there a method so the images have the opacity value immediatly, instead of when the page is loaded? Like a step before 'document.ready'. Or is the only way, the CSS way?
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Feb 6, 2010
I'm in the process of building this Ballroom Dancing website that has a simple dropdown menu. The menu works if I immediately call jQuery right above the javascript for the menu, ie:
Code JavaScript:
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.1/jquery.js" type="text/javascript"></script>
<script src="<?php bloginfo('template_url'); ?>/js/menu.js" type="text/javascript"></script>
The problem is that I don't want to do this because I already have WordPress calling jQuery several lines above for some other plugins. Is there a reason why it will only work with jQuery included right above? You can visit the site at www.zumbasudbury.ca to see the non-working dropdown. Hovering over Ballroom should produce a dropdown of two items.
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Aug 31, 2005
Basically i am doing a form which allows the user to input the office branches for this company. The user can input up to a maxi of 10 branches' details like location and tel.
the form details for each branch looks like this
<tr>
<td align="left">Location/font></td>
<td align="left"><input id="location" name="location" size="20"></td>
</tr>
<tr>
<td align="left">Tel/font></td>
<td align="left"><input id="tel" name="tel" size="20"></td>
</tr>
I would want a dropdown menu which allows the user to select 1 to 10 offices and with that the immediate appearance of the number of branches after the user has made the selection.
Another possible way is a link which allows the user to add another branch and keeps adding till a maximum of 10.
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Feb 1, 2010
I have a script who work perfectly as an inline script :
<script>
I have tried to externalize it :
But when I click on the "lnk.addnote" link, the dialog is shown and immediately closed. In fact i can see the "ADD FIRED" alert, then the "CREATING DIALOG" alert but nothing appear. And finally I got this message into the Firebug console "$ is not defined".
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May 13, 2011
There is probably something going on in my environment but when running 1.5.2, jquery runs and behaves fine. When I switched to 1.6.1 immediately the success callbacks of ajax functions did not trigger. I did not see the release notes mention anything new regarding that.
This includes
$.post("url", function() { console.log("will i get printed?"); });
Here is a code sample which fails
$(".foo").click(function(e) {
var link = $(this);
e.preventDefault();[code].....
The callback function for the ajax is never invoked.As part of my application, I have the following ajax setup going
$.ajaxSetup({
'beforeSend': function(xhr) {xhr.setRequestHeader("Accept", "text/javascript")}
});
Firefox 4.0.1, Ubuntu 10.04, Firebug 1.7
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Sep 21, 2011
show images after people scroll down the page - don't load them immediately after the page is loaded.also the images which are below the scroll should be first loaded when an user scrolls down.i need a javascript for that, but i don't want jquery! the code should be as short as possible.
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Jul 24, 2004
How can i precache those menu pics in order to make them change immediately on mouse over?
[url]
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Oct 18, 2010
I'm working on hiding all of a page's content immediately via Javascript. I want to avoid using CSS to display none just incase I run into users who don't have JS enabled.
I wanted to get advice from others and see what the difference is between using jQuery actions within $(window) or $(document).ready. From what I understand, $(window).bind("load, function(){ etc. will only use the script once all contents on the page are loaded, including images?
And $(document).ready(function(), etc just requires the DOM to be ready but will still execute code even if images, etc. aren't loaded.
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Apr 1, 2010
I'm using jQuery 1.4 to hide a div (#cartPop) when the "close" link inside of it (#cartPop a) is clicked. Since I'm using animate() to fade the div out (opacity), I also have to use hide() to get rid of the div once it has faded out (otherwise the invisible div, which is on a higher z-index, blocks the elements on a lower z-index).
Code:
The problem is that the hide() function calls immediately without waiting for the animate() function to run. Even if I append a delay() function before hide() like so:
Code:
...it still doesn't wait.
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Feb 4, 2010
I have been a mainframe programmer for over 20 years - I have a new project that requires browser pages written in JavaScript. I currently begin with a HTML page that assigns the values retrieved from a third party vendor's API to an array. I pass this array to another page to build a table full of links - when a client clicks on one of the links, two variables are put into yet another array and a third page is called, successfully passing the required data. Ultimately page 1 and page 3 will be .asp pages so that additional third party vendor API's can be called. The problem is this: after the third page is called from the second page, it displays for a second and then returns to the second page. When I click back I can see the third page, followed by the second page, and finally the first page. My question is this: why is the third page not displaying in the browser? I'm sorry if I have not posted this correctly as I really am a mainframe programmer and this is my first time doing anything code related with web pages
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Aug 3, 2005
I am trying to figure out how to use objects properties in my code so
when the page loads All my properties are in object where I can use
elsewhere in my page. Code:
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Jan 3, 2006
I'm trying to use the following code to load xml files:
ImportXML = function (ts) {
this.file = ts;
if (document.implementation &&
document.implementation.createDocument) {
this.doc = document.implementation.createDocument("", "", null);
this.doc.obj = this;
this.doc.onload = this.callBack;
this.doc.load(this.file);
} else if (window.ActiveXObject) {
this.doc = new ActiveXObject("Microsoft.XMLDOM");
this.doc.onreadystatechange = this.ready;
this.doc.obj = this;
this.doc.load(this.file);
} else {
alert("Error");
}
}
ImportXML.prototype.ready = function () {
if (myDoc[counter].readyState == 4) this.obj.callBack();
}
ImportXML.prototype.callBack = function () {
alert('loaded');
}
var xmlDoc = new ImportXML("bar.xml");
The problem I'm having is with the second line that reads
this.doc.obj = this;
IE tells me that object doesn't support this property or method. How is
it possible to get a reference to the object (xmlDoc) in the prototypes
'ready' and 'callBack" with IE?
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Jul 23, 2005
Where is the list of js objects (Anchor, Applet, document, etc)? It's not in the Netscape Guide or Core documents.
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Jul 20, 2005
If you have a javascript interpreter running in an environment unknown
to you (as in what objects it exposes to the language) is it possible
to loop through all objects in some way?
This is a non-browser environment, specifically the scripting engine
for doing xslt extensions in msxml.
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Jan 22, 2011
I have the following code:
var img = new Image();
img.myProperty = 'something';
I've tried Image.prototype.myProperty and a few other things. It seems IE just doesn't want me extending the Image object.
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Jul 4, 2011
"When we combine FUNCTIONS with OBJECTS we get METHODS". Then he creates an empty ARRAY:
var a = [];
then he uses the "push() method" to add elements to the array.
a.push(1,2,3);
uh, methods are for *objects* right? Yet he is using them on an ARRAY.how an array can magically becomes an object that is manipulated by a "method"?I mean, the array is still an array, no? It never actually becomes an object, right? Yet we still use a *method* to manipulate it. See my conceptual quandry?
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