I'd like to be able to control the text selection in an input of type text,
but JavaScript tells me that selectStart and selectEnd are undefined. Since
these properties are referenced in many JavaScript examples I must be doing
something wrong. Can anyone clue me in?
This is using Microsoft Windows with IE. I have a form with a text box which I inspect onKeyDown to determine what key is pressed. Also if the page sits idle for a while an alert box comes up. Here's my issue.
If I load the page and wait for the time out a message is written to the staus bar. That works fine. But if I load the page, type one character in the text box and stop all activity the page times out again. But this time after the alert box has fully formed, the status bar quickly receives the message I want there but instantaneously changes to undefined.
in javascript, is there a way to test if an array is undefined????
eg...
for (var x=0; x<10; x++){
if test_array[x] is undefined then x++
document.write(test_array[x])
Looking for clarification of undefined variables vs. error in
JavaScript code.
e.g.
<script>
alert( z ); // this will be an error, i.e. an exception
</script>
<script>
alert( this.z );
alert( window.z ); // both equivalent, no error, but window.z is
'undefined'
</script>
why is it that 'z' alone without the global object generates an error,
shouldn't it also be undefined? for example if i did
z = 0;
the javascript interpreter knows to create a global variable z
Has anyone came across a situation or know how the
document.fileCreatedDate property could be throw a JScript Error in
IE6 browsers?
I am using this in a function to help determine an IE browser (with
other properties). It has been reported to me to fail in others
browser. Since it works on other peoples machines I would make me
think is there something that can be done to a webpage that can have
this cause an issue.
ns 7.1 on win2k:
i am trying to sniff out the (ax) version of the NS browsers and am
not having any luck. both of the following alert 'undefined':
alert('GeckoActiveXObject=' + typeof GeckoActiveXObject);
alert('GeckoActiveXObject=' + window.GeckoActiveXObject);
it seems very straight forward but the results are puzzling. has
anyone had this same issue? thoughts/suggestions?
I am trying to read data from excel file and use the same to populate a select menu. If any cells are blank, I want to ignore. But I am unable to do this. The dropdown gets populated with blanks. Following is the peice of code:
var excel_cell = excel_file.ActiveSheet.Cells(i,1);
alert(excel_cell);
if(excel_cell=='undefined')
[code]....
I am having some fun with javascript, and I came upon a site, on the site you have to try to figure out the passwords which are embedded in javascript, now im on the last level but i have no clue whats going. It seems to be an undefined variable. Can anyone point me in the right direction? Code:
View 1 Replies View Relatedvar allProductIDs = [5410, 8362, 6638, 6758, 7795, 5775, 1004, 1008, 1013, 1014, 1015, 1072, 1076, 1086, 1111, 1112, 1140]; lastProductID = 6758;
for some reason I get a -1 or I guess which is equivalent to not found for this:
alert(allProductIDs[allProductIDs.indexOf(lastProductID));
I can't figure out for the life of my why because it should find 6758 and that would be index 3. If it's index 3 then I should get back 6758 I would think.
I've been working on a tutorial for AJAX and i keep getting this message and cannot locate the source problem. Anyone give me any pointers? Code:
View 2 Replies View RelatedDoes anyone know why the onclick in the following popup menu gives
the error:"Val is undefined"? Does it have something to do with the
fact that it is called within the variable tablePop? Because it IS
displayed properly as part of the popup text, where it is called
outside the single quotation marks (see [***]). It is only in the
onclick that it's causing problems. Code:
Any ideas as to how I can get ride of the script error undefined
variable "Exp_Month"?
I am trying to get this drop down list to default to the current month
as opposed to 01.
Thank you in advance.
<SELECT size="1" name="Exp_Month">
<OPTION value="01" selected>1</OPTION>
<OPTION value="02">2</OPTION>
<OPTION value="03">3</OPTION>
<OPTION value="04">4</OPTION>
<OPTION value="05">5</OPTION>
<OPTION value="06">6</OPTION>
<OPTION value="07">7</OPTION>
<OPTION value="08">8</OPTION>
<OPTION value="09">9</OPTION>
<OPTION value="10">10</OPTION>
<OPTION value="11">11</OPTION>
<OPTION value="12">12</OPTION>
</SELECT>
<script type="text/javascript">
var now = new Date()
Exp_Month.selectedIndex = now.getMonth()
</script>
I have no idea why id is undefined in the arrow below:
<html>
<head>
<script type="text/javascript">
var id;
function window_onload()
{
id = "8888";
alert("ID = " + id);
}
</script>
</head>
<H2>Page 2</H2>
<body onload="window_onload()">
<P>id = <script type="text/javascript">document.write(id);</script> //<****
</body>
</html>
I code my global variables first, then my window.onload function, like this code...
Why do I get the error:
"KBINPUT IS NOT DEFINED"?
and
Why doesn't the IF statement for UNDEFINED element catch the problem?
I have a function which looks like
function mainLeftElements(){
var containerDiv = document.getElementById('mainLeft');
var elems = containerDiv.childNodes;
alert(elems.length);
}
Which for a div declared like so:
<div id = 'mainLeft'></div>
Alerts me it has a length of 1, trying to work out what the element is (thinking it might be a blank text element or something, maybe the id attribute also??) by using
elems[0].tagName
and
elems[0].id
I get confused as they both return 'undefined', so what is it?
I'm about to use this script below for a project I have. It works great but unfortunately I can't get it to read select menu (selected option) values. It returns undefined. I've asked the author but had no response as yet, so I was wondering if anyone else could see why it wouldn't read the select menu value.
var functionname = function () {}
functionname.prototype = {
options : {},
generateShortCode : function() {
[code]....
None of my getElementById (or other) references produce anything but "undefined." This occurs in the latest versions of Fx, IE, Chrome, and Safari, so it must be something I am doing but not not seeing here. I have boiled it down to the following without success, and wonder whether there is some add on interaction. Fx 3.6.12 has the problem with this code:
<code>
<html>
<head>
<title>This is a test of getElementById</title>
</head>
<body>
<div id="area" name="area_name">xxx</div>
<script type="text/javascript">
var divs = document.getElementsByTagName('div');
var msg = '';
msg = 'Divs[0] contains ' + divs[0] + ' with width = ' + divs[0].width + "
";
msg +='Test area width by id = ' + document.getElementById('area').width + "
";
msg +='Test area width by name = ' + document.getElementsByName('area_name').width;
alert(msg);
</script>
</body>
</html>
</code>
When I click my button, window.frames['akFrame'].document.getElementsByName('auth_key').value is undefined, and I cant seem to make the if else statement work.
<script type='text/javascript'>
url=location.href.split('/')[4];
url=location.href.replace(url,'')
[code]....
Its an AJAX script which create mulitple choice dropdown boxes connected to a database. the Javascript works great on both FF and IE. However, in IE i get the irritating error code:
View 1 Replies View RelatedI'm currently coding the beginnings of a stopwatch script.
<html>
<head>
<script type="text/javascript">
var startTime;
var currentTime;
var started = 0;
function startStopwatch() {
if (started == 0) {
var startTime = new Date();
display();
alert(startTime);
}
}
function display() {
currentTime = new Date();
difference = (Number(currentTime) - Number(startTime));
document.stopwatch.display.value = difference;
setTimeout('display()',10)
}
</script>
</head>
<body>
<form name="stopwatch">
<input type="text" name="display" readonly="readonly" size="40">
<input type="button" name="start" value="Start" onclick="startStopwatch();">
<input type="button" name="stop" value="Stop">
<input type="button" name="reset" value="Reset">
</form>
</body>
</html>
The value of startTime when called from display() is undefined. I'm not sure why, as I declared the variable outside the function. The variable should be accessible by all functions, right?
Any help would be appreciated.
I have a problem with my javascript.
I have a function which looks like
which for a div declared like so
alerts me it has a length of 1, trying to work out what the element is (thinking it might be a blank text element or something, maybe the id attribute also??) by using
and
i get confused as they both return 'undefined', so what is it?
I have a homework assignment which is pretty simple. It is a grade calculator that uses arrays to gather the grades from the user. This is what I have for the problematic section:
var homework = new Array(2);/* The grades entered by the user for Homework 1, 2, and 3 */
var project = new Array (3);/* The grades entered by the user for Project 1, 2, 3, and 4 */
[Code].....
My problem is the document.write portion of the code, where it is supposed to return either homework[0], project [0], or exam[0], it instead returns undefined. There is no problem with any other subscript. And yes, it does successfully prompt me for each of the [0] subscripts in the first part of the code. Am I just missing something that is right in front of my face? Does all arrays not start with the [0] subscript?
I have several divs called 'profile', 'codesamples', 'artportfolio' and 'resume' which are hidden. I also have a visible div called 'bodytext' which is visible. When you click one of the links on my page, the function ClickButton is supposed to run, and send the information contained in one of the hidden divs into my visible 'bodytext' div. Instead, I get 'undefined' when I click one of the buttons.
[Code]...
Error: document.all is undefined
Line: 441
whts the error for
I am making a drop down menu in javascript using a function in an external js file. Problem is in FF error console it keeps coming up that my ID that's being called in getElementByID in the function is not defined. Please help if you can, why is saying my ID is undefined??
View 2 Replies View RelatedI have looked at this code and determined I will get the following if I run individual variable.
x = 10
y = 5
z to 5
However I am not sure. Because when I run the function using document.write
Like this:
Code:
document.write(get_xyx());
I get undefined
Here is the code:
Code:
<script type="text/javascript">
var n=5;
var x=n + n;
var y=n + n;
function get_xyz () {
var x = n;
y = n;
z = n;
}
get_xyz();
</script>