I've been messing around with Javascript and working in Firefox.
I did this:
JavaScript Code:
A = {
prop:"prop"
};
B = {};
B.__proto__ = A;
alert(B.prop); // works
However, this doesn't work in IE (not yet tested Safari etc). Does anyone know of a way of doing this or something similar in IE?
I have a div in which I've placed some anchor tags with the css property code...
I've given the div a grey background color and when I view the page on the net the div doesn't surround the anchor tags. The height of the div seems to be the padding, top and bottom, added together.
Any ideas on how I can get the div to inherit the height of the items contained in it? code...
Is it posssible to inherit the previous pages (parent pages)
background image? Is there a script out there I could look at?
I want to use UI theme colors on other elements of my pages and for them to switch automatically when UI theme is changed. I was going through css files generated by theme-rollerand didn't find any classes just for defining colors or borders used in a theme.For starters I wanted my form fields to have borders similar to UI theme. I used "ui-widget-content" and it worked fairly well, but I was wondering if there is a better way to do this.
View 1 Replies View RelatedI was hoping I could do something like this in javascript:
var a = {x:1, y:2};
var b = {x:2, z:3};
b.prototype = a;
And then:
b.x => 2
b.y => 2
b.z => 3
The purpose is to set up "b" as an override of "a".
I know it doesn't work that way because "prototype" is not a magic property on any object but constructors only. Is there a way to implement the above without involving a constructor?
Is this possible? Basically I need to grab all the flash objects on the page (done) and then set the wmode to transparent so it doesn't mess up my DHTML menu.
View 2 Replies View RelatedSubject line would seem to say it all:
How does one trigger the execution of a method within an object or any
other code/function with the setting of an object property?
More elaboration for those who want it:
Suppose we have anObjectType, with a property .description, whose value
can be a string, and the value of .description actually describes the
structure of anObjectType as a string. (The details are not important
about how the structure is described, but if you want something concrete,
think of 'anObjectType' as a DOM Node of type NODE_ELEMENT, and
..description as the property .innerHTML.)
When an instance of anObjectType is created, the value of description is
created with the instance. Indeed, the value of description may not be
set with the construction of anObjectType, but it might be added to the
prototype of anObjectType.
But the property .description is not merely read-only. Fetching the value
of .description returns the string which describes the structure of the
object in a meaningful way.
When .description is set with a value of type string, the string is
checked to see if it properly describes a legally formed structured for
anObjectType, and the instance (and only that instance) of anObjectType is
completely re-built: it might possibly be destructed and then re-
constructed, or all properties (but not methods) which involve descendant
objects are changed to conform to the described structure.
The question is, the setting of a string value of the property
..description of object anObjectType does not automatically trigger a
method/methods (or an exception??) for doing something (such as
restructing the object) as a result of the setting of an object property.
I am having an issue appending, setting attributes, text on the root node. Below is a sample of the code that performs this task (nLevel, nID, and sText are variables passed in by the containing function. XMLDOM is an XML DOMDocument object:
[Code]...
Trying to add a new property to a non-jQuery object from inside each loop doesn't appear to work:
var arguments=new Object();
arguments['ticket']=ticket;
arguments['email']=email;
arguments['module']=module;
arguments['epoch']=new Date().getTime();
var total=0;
$('select.category').each(function(){
var name=$(this).attr('id');
var option=$(this).find('option:selected').val();
total+=parseInt(option);
arguments[name]=option;
});
The 'total' variable works as expected. The the 'arguments' variable doesn't. Almost like
a variable scope issue or something. If I put some extra debug code to print out all the
property/value pairs, outside each loop I only see original four, and inside each loop only
the new one just set and none of the original four.?
I'm having trouble setting up a webplayer on a site. I had set up the player receiving the files and set up a jwplayer with an xml playlist. I am then notified we won't be receiving files just <iframe> and <object> codes. The player I am using only supports this if I get a crossdomain.xml set up and that's not an option. What I need to know is how to set up a playlist that can on click play the selected <iframe> and <object> codes in a player window next to them. I am a beginner with javascript, most of my experience is html.
View 3 Replies View Relatedwhat is the best way to setup one literal to be the prototype for another?So far I can only think of making a copy into a constructor.
Code JavaScript:
var meths = {
// creates a constructor function populated with a shallow copy of child
// the prototype for the new instance is set to the parent.
[code]....
I just got this script for a countdown on a website and I got it to work locally but when I upload it to the server i get the error "index.html:22 Uncaught TypeError: Object [object Object] has no method 'fancycountdown'".
I have checked to make sure all other javascript files are loading and they are and I can't figure out whats wrong. You can see it [URL]
I have the following code:
A = {
"value": "a",
};
B = A ;
B.value = "b";
alert (A.value); // => b
I expected A.value to be "a". how can I change values of a new object, without changing the parent-object?
13 line causes this exception. Function is called insied of ready() handler. function renderGridSystemRecursively(scheme, container){
[Code]...
I have come across an issue that only happens with IE.I have a custom save function that is designed to handle different ajax submits but I will simplify it for debugging. The issue is that once I make a submit everthing is fine at first. Then once I try to submit a second time it craps out. I am checking to see if there is an onsubmit function and then executing it like so before continuing. After the inital submit it is no longer found. When I alert the typeof document on the form it returns object but when I add the onsubmit it says object expected or object is null or undefined.
Code:
function secureBarSubmit(formId)
{
alert(typeof document.getElementById(formId)); // object always
alert(typeof document.getElementById(formId).onsubmit); // func first time then it is broken
[code]...
Can assign a new function to a built-in object in Firefox:
But IE and Opera don't have a MouseEvent or HTMLElement that can be set up in the same way. Can you do this in IE or Opera, or just Firefox, and maybe Webkit?
every time I try and alert:
[ { number:0, secondnumber:0 }, { number:2, secondnumber:1 }, { number:1, secondnumber:2 } ]
it just shows [object object], [object object], [object object]. Why is this and what can I do to make the record be shown as it is above in an alert?
Is there any way at all to create a new template object that inherits from the built in Date object so as to be able to add new methods to that child object without adding them to the built in Date object? I've tried everything I can think of and as far as I can tell it keeps referencing the Date function instead of the Date object and so doesn't work.
View 3 Replies View RelatedI have an object with a single Method to load content from a xml file. The problem is... how do I add a property to the object to store the data loaded?? I tryed adding a simple Array inside the object, but didn't work.
[Code]...
I am using a Photo Gallery script called Galleria which uses jQuery/JavaScript to display photos. On my index page load (only in Internet Explorer), a message box pops up saying "Message from Web Page [object Object]". After clicking OK the photo gallery loads and there is no problem.No idea how to fix this, or really what the error means. You can view the error from my site here
View 3 Replies View RelatedI am trying some simple things with javascript and trying to use it in a object oriented way. However I am now facing a problem in which I can't access an object variable from an object method. I am using jQuery.
My code is as follows;
Code:
My problem is that the variable msg1 does not work when accessed from function called from the jQuery get function. I get the message undefined. Therefore I am wondering, is there a way how I can access msg1 of my object instance from the get function of jQuery?
I created a method for displaying an object's properties:
As long as renderfunction = false, the object is fine coming out of this function.
However, if I change renderfunction to true, all my properties become undefined. Why isn't this working as I expect it to?
How would I go about copying all the prototype functions AND the constructor from one object into another object, and then call them?
I know I can use this.example.call(this), but that's not an acceptable solution. I want to deploy this style over dozens, potentially hundreds of objects.
I am trying to alert the ID of a particular menu that I have clicked on and I am getting object,object. Instead of the name of the ID.
[Code]...
I have two result. SelectableChildren: groupHead.nextAll(".SimpleButton") and SelectableChildren: groupHead.nextAll(".SimpleButton").next().children(".SimpleButton")
I would like to combine them into one object so that I can bind a handle to them in one loop. $.each(combineResult, function(index, object){ ... })
I have to make them in one, so that I can pass it around.
I'm writing a program that involves a network of interconnected nodes (or simply objects in my example below). It depends on being able to access properties of an object's linked objects (a bit oddly worded, sorry)...Problem is I'm not sure how to properly access those properties... see below please.
<script>
//This is an example of a problem im having in my own code...
//I want to access the name of the object within the links array wintin the object...
[code]....