JQuery :: Extending Or Replacing Core Function?

May 17, 2010

A client is using an analytics tracking script that needs to be updated each time the DOM is modified (ie, an element is added or removed). Basically this script allows the client to track user actions on the site (clicks, mouseovers, etc.) and, if the user is having issues, replay the entire session to help them with their problem. The issue we're running into is that this tracking script takes a cache of the DOM tree on page load, and when the DOM is updated it needs to specifically be notified that there has been a change... or else the script won't be able to see the nodes that have been added/removed.

Assuming all DOM manipulation is done using jQuery functions, is there a way to run some function every time the DOM is manipulated? I've noticed that all the DOM manipulation functions seem to run through the internal $.fn.domManip function, so I was wondering if it's possible to extend or replace this function from another JS file (assuming of course that all the manipulation functions DO in fact run through $.fn.domManip)?

Example (don't take this code seriously, it's more meant to illustrate what I'm trying to do):
var oldDomManip = $.fn.domManip; //Copy the function (I know this isn't right)
$.fn.domManip = function() {
oldDomManip(arguments);
//update the analytics program by calling it's update function here...
}

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JQuery :: Replacing JS Function?

Aug 22, 2009

New to JQuery, but making progress, not sure how to describe this issue, so stay with me. In JS I would build a function that I could call from a variety of actions, including other functions.

eg..
function dosomething(someparam){
// does something.
}
function dothis(){

[Code]...

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Code:
function erase_replace_value() {
// get all of the input tags

[code]....

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May 10, 2010

I am extremely new to javascript. I'm still trying to wrap my brain around it. I have learned that one must create, read, and delete a cookie. But what is the function for a 2nd time visitor to NOT see the flash video again when revisiting? I want the 2nd time visitor to see the same page, only without the video, the video will be replaced by a contact form.This is what I have so far:

<script type="text/javascript">
function createCookie(myCookie,value,365) {
if (days) {

[code]....

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Jan 4, 2010

I'm just wandering, how can you stop the replace() function from replacing characters inside a word, such as, if I try to replace 'x' with 'and', then my string would go from 'example, x' to 'eandample, and'.

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We're using Malsup's form plugin v2.82 and jQuery core 1.6.2. We're having issues in IE7 where, on a form with file upload, form fields are being dropped before the form is submitted to the server.We tracked it down to the `fileUpload` function, specifically line 196 where each field in the form data has `.attr('disabled',false)` run against it. If we change this to`.prop('disabled',false)` it all works fine.I don't see a clearly marked place to submit bug reports for the form plugin, and wanted to verify that others see this as well,

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[Code]...

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Sep 26, 2009

I'm writing a plugin for jQuery for catching 2 succesive keypresses. I'll paste the plugin I wrote below It doesn't work on Opera . The Developer tools of Opera gave no errors and I can't find any problems, it just doesn't work.(I've used Opera 10.0). o it only works on Firefox (tested on 3.0.14). I'm curious if there is a way to find out why it's not working on Opera and to fix it.

[Code]...

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Oct 21, 2010

I am working wiht this JQuery plug in that now one of my clients wants to turn it into a slideshow feature. I am not that familiar with JQuery plug ins so I wanted to get some input from some of you.

On the header of my html page:

Code:

$(document).bgStretcher({
images: ['1.jpg', '2.jpg', '3.jpg', '4.jpg'],
imageWidth: 1668, imageHeight: 1035, nextSlideDelay: 3000, slideShowSpeed: 4000
});

I was able to add a click handler to trigger the a function on the plugin called loadslide().

Code:

$(document).ready(function ($) {
$('.slideNo').each(function (i) {
$(this).click(function () {
loadSlide(i);

[Code].....

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Feb 10, 2011

Im trying to prevent my unorder list submenu from extending past the viewport.[code]

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Jan 22, 2011

I have the following code:

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Mar 18, 2004

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Sep 26, 2005

I'm embarking on a rather interesting wine cellaring project where I need to enable a user to add form fields (a complete table row with several fields) on demand.

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I also need perhaps another button that will create the row and duplicate the form field values of that row. The winery, wine namen and variety may be the same but the year may change and I dont wan thte user to have to do any double entry. I've been researching DOM and have been looking at sites like Quirksmode.

Am I heading in the right direction? I'm just about to go an buy a book on DOM and start really getting into it.

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Jul 23, 2005

Javascript has a very small math function list. However there is no
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Some functions such as hyperbolic ones are easy to add, since they are
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See http://www.cwdjr.net/math/I0L0andI1L1.html for an example of two
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The page is set up to reject the NN 4 series, because it will not
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about IE4. If it will not support these output formats, I can easly
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The code works properly on the latest versions of IE6, MSN9, Firefox,
Mozilla, Netscape, and Opera. I am not selling anything, so for a
special interest page such as this, I see no need to support older
browsers.

The advantage of doing math with javascript is that it is so portable.
You can do it anywhere you can use a computer, or you can do it on your
own local computer offline. There are several math programs for PCs
that will do very much more than you can hope to do with javascript.
Unfortunately the program I would like costs about US$ 1800. Also there
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Feb 1, 2007

I am trying to create an HTML form in which user will enter different items (he wants to purchase) in text fields. One text field is used for one item. Now it is not known in advance how much items the user will purchase so we cannot decide the total text fields required in advance. Is is possible to increase the number of text fields (using JavaScript) one by one if the user requires more fields

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Jan 9, 2007

How do I extend both the table and the input form? Ultimately, I want it to look like this:
_____________________________
|header |header |header |header |
| INPUT | INPUT | INPUT | INPUT |
Add Row of Inputs Link
_____________________________
|header |header |header |header |
| INPUT | INPUT | INPUT | INPUT |
| INPUT | INPUT | INPUT | INPUT |
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Jul 14, 2009

I have this class, (just the signature)

javascript Code:

var parent_child = function(po, ps, co, cs){
var url = 'http://xyz.com/abc/';
var pars = [], childs = {}, tmp;
this.p_added = function(urlFrag){

[Code]....

What i want to do is to create a new class with the above one as the super class, pass in one more variable to the constructor and override the p_added function. I thought of doing something like xpc = new parent_child(); and override the function with xpc.prototype.p_added = function(){}

how to pass in another variable to the constructor and make it private to the new class.

I believe there is a nice and concise way to achieve what i want to, but i can't find it. And the fact that OOP in javascript can be implemented in several different ways doesn't help my cause.

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Nov 24, 2009

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Jan 2, 2011

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Code JavaScript:
var ChildClass = new Function();
ChildClass.prototype = new ParentClass();
ChildClass.constructor = ChildClass;

That's fine, but what happens when ParentClass's constructor needs parameters?As an example, look at the following code:

Code JavaScript:
function Furniture(color){
this.color = color;[code)....

How could I "copy" Furniture's constructor into the Chair object? Better yet, how could I copy Furniture's constructor and then add some functionality to it?

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Jan 1, 2011

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I did some more research and read about prototyping on JavaScript Kit and here (http://mckoss.com/jscript/object.htm), but I still cant seem to get this to work. JS Lint says it's bug-free, but Firefox says "move()" is an invalid function. I am presuming the problem lies in my inability to fully grasp how to extend objects in JavaScript.

<html>
<head>
<script type="text/javascript">[code].....

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JQuery :: Extending Objects With Internal Objects?

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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Dec 22, 2010

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[Code]...

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