I have a superclass where I create a "div" element as a property and then proceed to try and set the element's "id" attribute in a subclass. Interestingly, if I create multiple instances of the subclass with different "id"s, they all end up having the last "id" I specify. I would like it if they retain the individual "id" I specify. Here is the code.
function Drag() {
this.ele = document.createElement("div"); }
function Icon(id) {
this.ele.id = id; }
Icon.prototype = new Drag();
var hello = new Icon("hello");
var goodbye = new Icon("goodbye");
i have found a possible bug in 1.4 but it's only in Internet Explorer 7 & 8.The following code does not work and completely ruins every peice of jquery on the page (that means everything inside $(document).ready and anyting else...
I cant see any syntax errors - i pulled the example from the 1.4 site. There is no trailing commas in the object notation and i really cant see any reason it would work in firefox and not IEx and more to the point not only not work in IEx but break any other jquery in the entire page....
I have noticed that when you set the src attribute of an img via script, (instead of hard-coding in the img tag), although it caches the images, if you leave the site and return, the browser has to re-cache the images. Is that just the way it is, or is there a way to not lose the cache?
I have <style> tags in my <head> section, and only want to set the cursor attribute if the user's browser has JavaScript enabled. This code however doesn't set the cursor attribute even if JavaScript is enabled:
I am trying to get my script working in FF, IE and Opera but the getAttribute isn't working for me. The domain name isn't getting picked up I have tried this:
This is the Javascript function that I use to hide/show DIV content. I use it everywhere without problems:
[Code]...
However, I get strange behavior when the above DIV is located within an AJAX response. My main page loads another HTML page into a div, and within THAT div is the "div6" above.
How can I subclass a native class to get my own class with all the function of the native clas, plus correct instanceof behaviour?
The scenario I'm thinking of is something like
function MyArray() { Array.apply( this, arguments ); } MyArray.prototype = new Array(); MyArray.prototype.constructor = MyArray;
var marr = new MyArray(); marr[0] = "abc"; marr.length == 1; // true marr instanceof MyArray; // true
But this seems impossible due to the Array constructor returning a new object even when called with my own "this" in the apply() above. Can this be solved in any way?
What I'm trying to do is when the mouse hover on the level1 class, I want level2 class change it's background color. But I do not know how to reference a subclass.
In the following example PositionedRectangle is a subclass of Rectangle, all 3 methods of prototype inheritance seem to produce the same results, method 1 is from the authors book (Flanagan's Definitive Guide 5ed) example 9-3, and method 2 is from his website example 9-3, and method 3 is my own;
// method 1 seems most complicated function heir(p) { function f(){};
To have all the :hover subclass fade from their passive states, instead of changing instantaneously? i just can t figure if such an effect can be done.
I'm working with a large (and unweildy) ASP.NET application, and there is a lot of jQuery code that uses selectors like this:
[name=_aspnetControl$_withASubControl] And unfortunately, some selectors that also look like this:
[name^=_someAspNetControl$_radioButtonList].
In other words, the effort to remove the $ from the attribute selectors would be monumental. If it is possible to escape the $ symbols, I can do that easily enough, but unfortunately the situation right now means that I can't upgrade to jQuery 1.5.
I'm learning jQuery with XML. I'm familiar with other query languages such as XPath. I'm having a little bit of difficulty wrapping my brain around how jQuery works but I think I can make the leap if I see a solution to a problem I know how to solve with other methods Given the following XML, please share a jQuery solution to finding the value of attribute B in elements named bar where attribute A has the value 30:
I'll trying to tell the difference between the following three cases:
<img alt="text string" /> <img alt="" /> <img />
I can do this in Firefox with the following code, where elem is the HTMLElement representing each image, but IE doesn't seem to differentiate between empty string and undefined.
var alt = elem.getAttribute('alt'); alt = (alt) ? alt : ((alt===null) ? 'really_null' : "");
The desired output from running this code on the 3 tags above is:
text string
really_null
It seems like this should be really easy...but I'm having a really difficult time trying to figure out what's going on...
I was wondering if someone could help me here. I need to set the class attribute of an HTML element to a specific value using javascript, can someone give me an example of how I might do this as the syntax
I'm loading an XML document and grabbing a node with content in it including html. I can't figure out how to grab the src of the first IMG tag that appears in this text string
I am aiming to change a couple of items on a CSS definition using JavaScript, so the servicer only needs to update one JS variable. I am so a novice at this...
I would like to be able to set the "top" and "height" attributes of my graphbar ID element after the percent in the JS script is changed.
I'm trying to get the value of an object's property. getAttribute returns "null" even though I'm sure the property is set. I can easily set the property, and in my actual script I do so dynamically. I just want to read the property and can't.
To help explain my problem, I've attached an example .html file as a .txt file.
The critical part of the code is this section that is based on "textbook" examples of how to get an attribute:
<script type="text/javascript"> function showcolor() { var myobject = document.getElementById("lab"); var myproperty = myobject.getAttribute("color");
alert(myproperty); } </script>
This is called via a button on the bottom of the page. The DIV object with the ID "lab" exists and has a color attribute defined in CSS, but I cannot read it, nor any other attribute, with a script. The alert displays "null".
I've been working on a dynamic script using the DOM and wanted a routine that would parse out the element attribute collection. I came up with a routine that works in FireFox 1.5 and Opera 8, but it doesn't work in IE 6. Any ideas? Code:
Im trying to make a script which when I click on the list element... it will replace a big image with anotehr picture. The list element is a thumbnail... and I want to swop the big image with the big version of the thumbnail. Each <li> has a rel attribute... but while I can pull out each <li> from the list, for some reason the following code, yields an 'undefined' value... instead of the big-image-path...?
