DOM Modification Speed - Adding Elements
Nov 12, 2010
I'm justing wondering about the behavior of JS in regards to adding elements, suppose I have something like this:
I'm just wondering at the point I hit that "// DO SOMETHING WITH ONE OF THESE DIVS", are all the divs I have added in the DOM available to access?
I ask because I have some code at work in which a tester is reporting an error that happens which I can't reproduce, and they and others have had it a few times.
The only way I can explain it in my mind is if the div is not available to me at the time of execution. So I'm just looking to rule it out or confirm my hunch.
Is document.getElementById("myDiv").appendChild(obj); synchronous and the next line of code wont execute until the DOM is ready or is it in fact a asynchronous call and therefore adding alot of elements to the DOM could result in a lag so some divs or not available straight away.
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Mar 14, 2011
I use the following code to add a "click" behaviour to an element:
$(document).ready(function(){
$("#element_id").click (function(){
...... do something ....
[Code]....
Part of the node I clone is the element from the first piece of code I quoted. The addRowJob function also changed the ID of every element in the node I cloned. This way all IDs remain unique. Lets say the element in question has the ID "#element_id". Now I clone the node (which includes the element) and the cloned element gets its ID changed to "#element_id_new".
Of course I now want this newly append element ("#element_id_new") to have a click event attached to, but even if extend my $(document).ready(function() to:
$(document).ready(function(){
$("#element_id").click (function(){
...... do something ....
});
[Code].....
I simply doesn't work for the appended element.
My guess is that the $(document).ready(function(){ only fires when the document is finished loading. At this stage there is no element with the ID "#element_id_new" and therefore the click event can't be attached to the element. Makes senses...
But how do I get this click event attached to the newly appended element with the ID "#element_id_new"?
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May 30, 2006
how to do you add elements to an array? am looking at section dealing
with arrays in JS Bible, can't find how you add to an array.. in the
last few years I've been doing much more Java than JS, am used to Java,
where you can't add elements to an array, but use a Vector instead.. and
it's very easy to add to it (use add() method..) how to you add
elements to an array in JavaScript..
I looked up array obj, don't see method to add to array.
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Oct 12, 2011
I have probably a really easy question but i just cant figure it out.I want to add a <div> element every time it goes through a loop a .each in this case.I had it working in prototype before:
new Element.insert($('dashboard-column-'+a), '<div class="dashboard_column"><h2><span style="color: #aaa; float: right; font-size: 10px;">'+period_title+'</span>'+report.val()+'</h2><div id="dashboard-'+report.key+'"><img
[code]...
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Jun 30, 2009
I have a javascript method that adds a good portion of HTML to the DOM after an AJAX request completes. It's an image uploader... so once an image uploades, I add it to the list of images along with a save and delete button. Normally when a user clicks save or delete (they are specified as classes with images called save and delete), a javascript method is called.
Problem is, when I add another image to the list along with its save and delete images, they aren't going to respond to the clicks. I know this is because I already did the
$('.save').click(function (element) {
saveImage(element);
}
script in the document ready. Is there a way to get the new DOM stuff I just added to also apply to that?
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Feb 5, 2006
Im sure this is possible, does anyone have any code/pointers?
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Oct 18, 2006
I want to add form elements dynamically, ie: click here to add another attachement box.
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Jun 29, 2009
I am using the treemenu from here [url] It works great, but my clients wants to have the functionality that (if there was only two levels) that if you expand into one level and view all the sub items and then click on the another main node that it would contract all existing items and then display the new sub node?
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Jul 4, 2011
I'm trying to make a form that will generate some code for game based on what they fill out. The code will be a modification menu of sorts. They will be able to name the menus and submenus and add or remove them if they want. I will need a way to get the information they filled in for each specific menu form, so I figure giving them each a unique id would do the trick. I'm sure there is a MUCH better way to do this, but here's what I have so far:
[Code]...
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Nov 10, 2011
I have the following bit of code:
<script>
jQuery(document).ready(function() {
var url='http://search.twitter.com/search.json?callback=?&q=test';
jQuery.getJSON(url,function(json){
jQuery.each(json.results,function(i,reviewa){
[Code]...
I'm baiscally trying to get some twitter feeds and the rotate them. I can get it and everything like that but for some reason the jQuery doesn't pick up the divs that I appended to the container because when I alert the div.length like this: alert(divs.length); The result is always zero. The code works fine if I can populate that value but if I don't have it in the code before hand it doesn't work. However if I add a div to the container like this:
[Code]....
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Sep 16, 2009
I am after adding a mouseover (and mouseout) to a div tag, however this mouseover and mouseout will require an element id passing to it to work. Currently the tag is
<DIV class="mc-c" onMouseOver='document.getElementById("ID1").className="mc-h-on"' onMouseOut='document.getElementById("ID1").className="mc-h-off"'><DIV id="ID1"></DIV></DIV>
but the tag will soon become
<DIV class="mc-c"><DIV id="ID1"></DIV></DIV>[/
The ID1 is generated when rendering the HTML and there may be multiple of these tags (each with a different ID#).I would like to add the same functionality as the first bit of code to the second, does anyknow know of this. I have been able to add mouse overs to DIV's already, however passing a variable to it I am struggling with
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May 29, 2011
I am using infinite scroll plugin. I am adding new elements to the page. I would also like to add a div using after().However because these elements are being added after the DOM has loaded, it is not being picked up.Here is the code I tried.
$('ul li:nth-child(4n)').live('after', function(){
return '<div class="clr"></div>';
});
After reading the documentation I realized that after() cannot be used with live(). So, how could I achieve this then?
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Jul 3, 2009
i'm trying to add a row to a table with form elements in the table. It almost works but instead of seeing my text field, i see the code of my text field. Here's my code :
var counter = 1;
function addInput(tableName)
{
var tbody = document.getElementById(tableName).getElementsByTagName("TBODY")[0];
var row = document.createElement("TR");
var td1 = document.createElement("TD");
td1.appendChild(document.createTextNode("<input type='text' name='myInputs[]'>"));
[Code]...
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Nov 13, 2006
I'm using the following function to access elements with specific attribute values in an XML file. These elements then also have child elements, which contain the required data to be rendered as HTML. Code:
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Jul 18, 2004
Since the Array.splice() method isnt supported by IE5 here's a script with an add function and a remove function.
function remove(nr) {
var nb = parseInt(nr)
for(x=nb;x<myArray.length-1;x++) {
myArray[x] = myArray[x+1]
}
myArray.length += -1
}
function add(nr,value) {
for(x=myArray.length;x>nr;x--) {
myArray[x] = myArray[x-1]
}
myArray[nr] = value
}
You can test it out by including the following html, and an array in the script (here named 'myArray').
<body>
<form>
Nr to add/remove<input type="text" name="nr" /><br />
Value to insert <input type="text" name="val" />
<input type="button" value="remove" onclick="remove(this.form.nr.value)" />
<input type="button" value="add" onclick="add(this.form.nr.value,this.form.val.value)" />
<input type="button" value="View Array" onclick="aA()" />
</form>
</body>
</html>
And this small function
function aA() {
for(x=0;x<myArray.length;x++)
alert(myArray[x])
}
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Oct 30, 2009
in my case i want to add a new menu item(actually a div tag) to my existing menu when an event or method calling occurs. i want to append a div tag dynamically to my existing menu with all css and effects.
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Apr 17, 2003
I need to have the cursor appear in the first input box on various pages. When I use the onLoad event in the body tag it works, but anywhere else it doesn't.
The problem is aside from my intro page, most of my other pages use a header and footer on the server side. The body tag is inside the header so I don't have access to it on the other pages. I tried adding a simple function at the bottom of the page, but it does not work.
<script>
function setFocus(){
frm.Name.focus();
}
setFocus();
</script>
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Oct 26, 2006
I've got an class/object that depends on two js files, but i'd rather not add them on the pages that uses the class/object. Code:
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Jul 29, 2011
The following code adds an element to a page when a new address is inputted. Is there a way to remove all added elements with a Clear All button? I have a "Clear All" button with id="ClearAddresses" but I don't know how to remove all created elements - the code here only removes one at a time, since the element is created when the "Search" button is clicked.
var Dom = {
get: function(el){
if (typeof el === 'string')
return document.getElementById(el);
else
return el;
},
add: function(el, dest){
var el = this.get(el);
var dest = this.get(dest);
dest.appendChild(el);
}, .....
setTimeout("add_visited_address();", 50);
}
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Jun 4, 2009
How can I change the behavior of the alarm clock script from Javascript Kit located here [url] to make it so that it displays a simple alert message instead of following a link?
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Jul 14, 2010
I needed to calculate my prices on-the-fly and display it in textbox with javascript. Well I did succeed with values of radio button an checbox, but as I know very little javascript, I don't know how to expand the code I got from here: [URL].
How can I make this happen: I have a textbox:
HTML Code:
<input type="text" name="podstranice" size="19" class="podstr" onkeyup="this.form.total.value=calculateTotal(this);">
And when a user inputs a number in it, javascript multiplies it with some other number, say 10 (its a price*quantity thing) and adds it to the total price along with data from checkboxes and radio buttons. And so, this is my javascript. It is basically identical to one on the link, but you can view it better this way I think.
Code:
// Calculate the total for items in the form which are selected.
function calculateTotal(inputItem) {
with (inputItem.form) {
// Process each of the different input types in the form.
if (inputItem.type == "radio") {
// Process radio buttons .....
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Dec 1, 2005
I'm trying to solve a problem with JS textbox array without success.
I have two buttons in my page: PLUS and MINUS; at every click on PLUS a new
textbox named 'dear' is generated. So, if one clicks, say, 3 times the
output is something like:
dear[0]
dear[1]
dear[2]
The length property is accessible; alert(dear.length) gives Ɖ', correctly.
The prolbem is that is not possible to delete a textbox, clicking on MINUS
button. The thing I'd really need to do is to delete from the array (and in
consequence from video) the last textbox created, when one clicks on MINUS
button.
Pop() and Splice() methods do not work, unfortunely...
This is the exact code of my page:
<a href="#plus" onclick="john.innerHTML+='<li><input id=dear type=text
size=50>'">
[PLUS]
</a>
<br>
<a href="#minus" onclick="alert(dear.length);dear.pop()">
[MINUS]
</a>
<ul>
<div id=john>
</div>
</ul>
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Mar 15, 2011
I return json string and loop through the results putting items in Div's and want can't seem to access the class attribute / selector.
$.getJSON(strUrl, function
(data) {
var
items = [];
[Code].....
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Feb 5, 2011
I'm trying to add a <div> element with an event class="but"like the below mentiond:
$("body").append("<div><div id="effect3"><h3>Toggle3</h3></div><a href="#" id="button3">Run Effect</a></div>");
$("#button3").addClass("but");
[code]....
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Oct 21, 2010
I have an <ul> and I'd like to append an anchor and a <hr> to every fifth <li> item.I understand I need to do something with index() and append() or html(), but since I am new to jQuery I am not sure how to set up the script.
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May 6, 2009
I have a table that i load into the document via ajax. the table shows a list of times. every row has a button that when clicked should call another AJAX function. However when clicking the link nothing happens. If I put a link in the original document myself and ask it to do this, it works fine, but becuse this is generated code, this option will not do.
THis calls for the table.... works fine...
$(function () {
$("#departmentToSchedule").change(function () {
$.ajax({
url: "schedjewelAjax.php",
[Code]....
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