Problem With Onmouseout - Object Has No Properties Error
May 14, 2006
I've got an image gallery in which users can navigate between the next and previous image by clicking on the right or left half respectively of the current image. When the mouse is over the left half an arrow pointing to the left is shown on the image and when on the right an arrow to the right. It works fine if i use inline javascript but i'm trying to achieve the same effect unobtrusively and with an addEvent function. The onmouseover part works fine but from the function that fires on the onmouseout event i get the following error in Firefox and the arrow is not hidden:
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Nov 13, 2009
how to add extra properties to html elements as I was storing data in html attributes. After looking at some others code including Raphael and this addEvent code. [URL] They seem to treat objects just like an array. obj[property] = value; This would have been extremely helpful to know previously as I have needed to be able to include variables in property names - but have resorted to making the whole thing a string and calling exec() on it.
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Mar 20, 2010
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?
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Aug 17, 2005
I have a number of show/hide images on my site which allows the user to click on various thumbnails to open up the full image using layer based styles.
However, my Javascript seems to have developed an error saying that the object has no properties and then takes me to the following line of code:
obj.visibility='hidden';
This code was written for me so that i could use the script dynamically with PHP an alter the number of div layers it needed to generate.
The full(?) javascript for this function is:
function showImg(myShow)
{
var loopNum=99;
for (x=1; x<=(loopNum); x++) //1 based loop
[Code].....
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Jul 11, 2011
I'm trying to get the properties for the following objects:
0: [object Object]
1: [object Object]
2: [object Object]
3: [object Object]
This was generated by using the following code:
[Code]...
Since object names can't simply be a number ie(this.oProducts.Product.0), how can I access the object properties in the list above?
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Oct 9, 2005
I am developing in firefox 1.0+, but will be working in an msie 6.0+
produciton environment ( not my choice, but when is it ever? ).
the desired output is that when the end-user selects two radio buttons,
one from each 'group', the form / page will open an alert window
displaying the values of the radio buttons selected without having the
end-user left-click on a submit button.
i cannot figure out why I'm getting the "document.[formName] has no
properties" error mesasage in the javascript console....
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Apr 28, 2006
I've been tryin to figure out why I am getting this error for some time now. Any ideas?
<script language="Javascript">
<!--
var lead_id = "<?php echo $LeadID; ?>"
if (lead_id > "") {
var state = "<?php echo $row['State']; ?>";
var confirmer = "<?php echo $row['Confirmer']; ?>";
var day = "<?php echo $row['ApptDay']; ?>";
if (state == "MD") {
alert("hi");
document.forms['form1'].state.options[0].selected = true;
}}
//-->
</script>
state is equal to MD so I am getting the alert "hi", but it breaks right there and gives me this error. document.forms.form1 has no properties heres my form tag:
<form name="form1" id="form1" action="ticketformpro.php?LeadID=<?php echo $LeadID; ?>" method="post">
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Sep 16, 2011
I have the following question.
In my code, Ifirstdeclare a GLOBAL property to store all my global var's in, (with already some properties)[code]...
Does the second block of code overrides the first GLOBAL object? Is there a way to push more properties to an existing object using the same pattern?
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May 8, 2006
I got the following error in a javascript I wrote. The script works
fine, but why is the error being displayed???
function chgMusicLink(userid,userlink,usertype) {
var card_music_id = document.getElementsByName(userid)[0].value;
document.getElementsByName(userlink)[0].href="/card_music_preview.tcl?card_music_id="+card_music_id+"&card_music_type="+usertype;
}
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Jul 20, 2005
I've got a script where I'm trying to toggle the visibility of a div
node by a click on an image that is the sibling of the div.
So I've got this HTML:
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Sep 30, 2006
i'd like to know objects properties and/or methods.
saying i do have an object "o" being part of the dom (a div or an ul...)
how could i list (introspection) all the properties and methods attached
to this object ?
i know it is possible in javascript but don't remeber how to ...
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Jan 17, 2011
Do many programmers remember most of the object properties and methods or do they use IDE or references to find those specific objects. I'm starting to learn Javascript and seeing all the different type of objects available can be depressing. :(
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Apr 1, 2011
I am fairly familiar with the concept of Objects and their properties and methods, but javascript being object based as opposed to object oriented has me stumped on how to access an object's properties from an onclick event handler created for another object created within the original object.
In the example below, I have a constructor function called anyObj. to which I pass an object reference to an element.
anyObj has 3 properties and one function increaseWidth()
increaseWidth() creates a new button with an onclick event handler and this is where I have a problem.
The onclick function needs to increase the value of anyObj's this.width property. I originally had a line this.width += 10; in the onclick but quickly realised why this wasn't working because the this in the onclick function refers to the new button object and not the this.width property of anyObj.
The workaround I have used, and it works, is to make a copy of all the this.xxxxx properties. eg. width = this.width; and use the width variable in the onclick as you can see below. This "workaround" works fine but doesn't feel ideal to me.
So is there a better way to access the anyObj()'s properties from within the onclick function than the way I have done it? Obviously I would prefer to not have to make copies of all the anyObj() properties like I have to make them accessible to the onclick function.
function anyObj(divObj){
this.elem = divObj;
this.width = 50;
this.height = 50;
[Code]....
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Jan 2, 2008
Say x in a XML Http Request Object ... meaning it's either XMLHttpRequest (firefox) or ActiveXObject (IE)
This line of code works in firefox...
x.someProp = "someValue";
alert(x.someProp);
But in IE I get "Object doesn't support this property or method" I need to place a custom property on the object. Is there any way I can do that in IE?
I've already tried ActiveXObject.prototype.someProp = "";
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Mar 25, 2006
I've created an object and within this object, I've added an eventlistener. But the problem now is that after addEventListener is being called to access a callback function, the callback function is not able to access the properties within its own class. Code:
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Mar 31, 2011
I am fairly familiar with the concept of Objects and their properties and methods, but javascript being object based as opposed to object oriented has me stumped on how to access an object's properties from an onclick event handler created for another object created within the original object.In the example below, I have a constructor function called anyObj. to which I pass an object reference to an element.
anyObj has 3 properties and one function increaseWidth()
increaseWidth() creates a new button with an onclick event handler and this is where I have a problem.The onclick function needs to increase the value of anyObj's this.width property. I originally had a line this.width += 10; in the onclick but quickly realised why this wasn't working because the this in the onclick function refers to the new button object and not the this.width property of anyObj.
The workaround I have used, and it works, is to make a copy of all the this.xxxxx properties. eg. width = this.width; and use the width variable in the onclick as you can see below. This "workaround" works fine but doesn't feel ideal to me.So, what I am asking advice on is, is there a better way to access the anyObj()'s properties from within the onclick function than the way I have done it? Obviously I would prefer to not have to make copies of all the anyObj() properties like I have to make them accessible to the onclick function.
Code:
function anyObj(divObj){
this.elem = divObj;
this.width = 50;
[code]....
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Jul 13, 2011
I have the empty object and two variables:
[Code]...
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Aug 26, 2009
Code JavaScript:
function dropdown() {
}; dropdown.prototype = {
sele: $('.select'),
city: [],
scope: [],
type: [],
init: function(json) {
if(json.location.length) {
for(var i=0; i<json.location.length; i++) {
this.city[i] = json.location[i].city; .....
this.scope[i] = json.location[i].scope;
}}.....
getUrl: function() {
return location.pathname+location.search;
},
setUrl: function(paramType, param) {
return this.QueryString(paramType) ? this.setQueryString(paramType, param) : this.getUrl()+"&"+paramType+"="+param;
}};
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Feb 4, 2007
I have a script here which will loop thru a table and check for it's background color.
But it doesn't work on Firefox. The Error Inspector said "ERROR. obj.cells has no properties
How should I work around it to ensure it works for IE and FF?
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Jul 23, 2005
Well, I've been working with JS for three years and have a great experience here. But! I still have no really acceptable answer to the following
question:
What is the principle difference between declaring methods/properties
in the constructor function body and via prototypes.
Are there any real GURUs? Let's discuss the issue.
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Jul 23, 2005
In JavaScript 1.5, objects can use special getter and setter functions
[1] for properties. However, these only seem to be implemented in Gecko
and, AFAICT, don't seem to be part of ECMAScript.
Is there an alternative syntax I can use that is standardised in
ECMAScript and also (preferably) interoperably implemented in several
browsers? Or, do I have to use ordinary getFoo() and setFoo() functions. Code:
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May 8, 2010
I want to programmatically list all properties of JS object from C++ code (I am using Mozilla's JSAPI). I know I can go up the prototype chain with JS_GetPrototype, then enumerate each object's own properties with JS_Enumerate.
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Nov 24, 2009
I have an object: Myobject and properties for the object: Myobject.color, Myobject.width, Myobject.height The scripts returns TRUE if I query Myobject.color or Myobject.width etc. I want to loop through de properties like so:
Code:
var properties = ['color', 'width', 'height']
for (var i=0; i<properties.length; i++) {
Myobject.properties[i]; // Returns UNDEFINED
}
How to make it works? (Should returns TRUE)
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Dec 5, 2010
I don't know why but after the animate() function it's like all the properties get wiped.
PHP Code:
bubble.prototype.expand = function() {
var _this = this;
this.mLeft = parseInt($(this.div).css('margin-left').split('px')[0]);
this.mTop = parseInt($(this.div).css('margin-top').split('px')[0]);
this.iWidth = $(this.iconImg).width();//icons dimensions
this.iHeight = $(this.iconImg).height(); .....
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Apr 5, 2009
I'm using code below to run a function when the user move the mousepointer from within a DIV and outside it:The idea is that that mousepointer motion shall hide the DIV.
Code:
document.getElementById(theID).onmouseout = hideDiv;
if (document.getElementById(theID).captureEvents) document.getElementById(theID).captureEvents(Event.MOUSEOUT);
It kind of works, but the problem is that if I move the mousepointer to fast out of the DIV then it will not trigger.The div in question has some elements within it, and originally it was allmost fully covered by those element... and then the onmouseout did not work that good....So I had to create some padding for the div to make it detect the onmouseout better... kind of work... but sometimes failes to trigger on the onmouseout.That padding also make the div not look that good ... so would like to get rid of all the padding as well, and make it work, if possible.I have tested this in the following browsers and get pretty much same behaviour in them all:IE8, Firefox (latest), Chrome (latest), Safari for win (latest beta)...
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Sep 22, 2006
Subject 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.
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