What is a cross-browser way to check if a function has been defined?
It seems that this code
if (myFn) {
myFn();
}
executes whether myFn is defined or not. When it is not, a JS error
results.
Anyone familiar with this plugin?The docs say that it supportscolspans but it doesn't appear to do so.The script has acheckCellColSpan function defined but it is never invoked.I really
View 5 Replies View RelatedHow can I check if a key is defined in an associative array?
var users = new array();
users["joe"] = "Joe Blow";
users["john"] = "John Doe";
users["jane"] = "Jane Doe";
function isUser (userID)
{
if (?????)
{ alert ("This is a valid ID"); }
else
}
But what goes in place of the ????
I know it's something stupid I'm doing but I can't figure it out. Essentially I'm trying to load two objects with URLs with two websites that can be loaded(displayed) and unloaded(hidden) at the click of a button.
I've spent an hour trying to debug this and I'm at my whits end! I'm doing this with changing the width and height of the divs that contain the objects that will load the websites. But, in Firefox I get an error in the error console saying : loadUnload is not defined. why? code...
I'm calling a function that I want to loop thru an array, check the values and disable the drop down accordingly.
[Code]...
I keep getting a selBox[i] not defined. Is it the xxx[x] = ?
I am facing a problem in passing replace() function as an argument in user defined java function.
intention is to pass a file path to my user defined function, but before passing the path i want to replace the character '' to '\'
I am posting my javascript function here:
<a href="#" onclick="OpenDocPreview('<%# Eval("PATH")%>'.replace(/\/g,"\\"), '<%# Eval("Filename")%>')"><%# Eval("DocTitle") %></a>
function OpenDocPreview(url, docname) {
alert('message from search base : ' + url + ' ' + docname);
}
I am facing a problem in passing replace() function as an argument in user defined java function
intention is to pass a file path to my user defined function, but before passing the path i want to replace the character '' to '\'
I am posting my javascript function here:
<a href="#" onclick="OpenDocPreview('<%# Eval("PATH")%>'.replace(/\/g,"\\"), '<%# Eval("Filename")%>')"><%# Eval("DocTitle") %></a>
function OpenDocPreview(url, docname) {
alert('message from search base : ' + url + ' ' + docname);
}
I'm making some changes to a google chrome extension I made and am having some trouble. Heres my code on a content script page (removeAttr.js) :
chrome.extension.sendRequest({greeting: "whitelist"}, function(response) {
var whitelist = response.whitelist;
console.log(response.whitelist);//working
});
alert(whitelist);//alerts "undefined"
How do I acess the whitelist variable from outside the sendrequest() function?
Iv tried saving it to a window.var variable with no luck. Iv tried creating a div and assigning it's innerHTML as the whitelist variable and getting it later with no luck. The fact that it's a chrome extension complicates things because i dont actually know if i can create elements from where the script is located.
Script: Firebug says "replaceshow" is not defined, when it is.. I don't see any syntax errors?
Code:
<script type="text/javascript" src="prototype.js"></script>
<script>
function replaceshow(show_id,dog_id) {[code]......
This is an admittedly convoluted script, so I'm not surprised it's a bit buggy.Basically, I'm arranging several hundred small divs on a page. This code writes each of them onload, and checks urlArray to see if the specific div being written has a function attached to it, then enables onmouseover/onmouseout hand pointer/default pointers to it, and, of course, runs the function onclick.
var urlArray = ["main", "none", "none", "none", ... (snip) ]
var i = 0;
function writeDivs(){[code]....
The script as it appears here runs great in chrome, but Firefox tells me that "main" is undefined whenever I click or roll over the div, and IE says "object expected" when I click."main" is the name of a function defined in an external js file (though pasting the function into the main document doesn't do anything).In fact, the whole of the above script may not even be relevant, since the following doesn't work either:
document.write("<div class='posDiv' id='div"+i+"' onclick='javascript:main()' >"+textArray[i]+"</div>");
I'm new to Java programming. I've seen how finicky java is as far case
and space sensitivity sensitivity is concerned. However, I'm slowly
getting hang of it.
I came accross this weird problem that I just can't figure out. First
of all, here is a link to the script:
I'm a Javascript newbie and I have not been able to understand the problem in the below code. I have been stuck at it for hours now.
whenever I click the "Preview Dialog" button, I get the following error in firebug: callPublish is not defined code...
I am writing a simple html in which when the user moves his mouse over a particular DIV, a message box will pop up.
Part of the code is as follows:
<DIV id="1">Hide them</DIV>
<p>Hiya</p>
<p>Such interesting text, eh?</p>
</td></tr></table>
[Code]....
I dont know how to pass a DIV's ID to a self-defined function in JQuery.
when you click the link from the iframe it doesn't work at all in firefox...says the function is not defined.This is working like a charm in Safari ---I have tried defining the function in a dozen different places -- INCLUDING the index.php header and the content item there on the page.Also in the google.blogger header --- NONE work in safari as consistently as what I have got here.I basically hacked a google.blogger widget and wanted to use a submit-form instead of the get-url variables to load the page of the website wth the blogger iframed into the site.
View 2 Replies View RelatedI have a good understanding of javascript although I am new to working xml. So I am having a problem getting javascript to recognize that my parameter value in my function call is an attribute in my xml. I called the js function like this:
<a href="#" onClick="ebookCategory(marketing);">Marketing</a>
Here is my js function:
var category;
function ebookCategory(category) {
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
[Code]..
I want a function that when you check on a check box another check box appears.
View 10 Replies View RelatedEverything works fine with Opera and IE, but not with Mozilla 1.7.3 and
Firefox 1.0 PR. When I call a function previously defined inside another
function I've got "function is not defined". Why?
How do i use a function like this?
$.clientCoords = function() {
var dimensions = {width: 0, height: 0};
if (document.documentElement) {
[code]....
I have created a function and successfully called it in place, but it wont load properly in a loop.Here is my function:
function setImageTile(id, imageType) {
$('#'+id+' img').attr('src', 'images/'+imageType+'.png');
$('#'+id+' img').attr('name', imageType);
[code]....
Using a while loop in a function, I am trying to test an input character against a stored string of characters. I want the function to return the input character only if it is not in the stored string of characters. The code I've prepared is as follows:
<SCRIPT language = "JavaScript">
var storedLetters = 'sideways';
function requestLetters(aString)
{
var validLetter ='';
[Code]...
The code works fine if I remove it from the function wrapper but if the function is called I keep getting an error message that the variable validLetter is not defined. :confused: Can anyone see why this is the case?
I have the following code as js for <a href="http://www.oxbowcreations.com/wedding/personalize.php">this</a> site.
Code:
// JavaScript Document
function setQty(id)
{
[code]....
I've got an HTML file displayed at [URL]
The Firefox 3.6.12 displays only:
=========== Start ===========
10_ShowClassesAndTypes
Starting 10_ShowClassesAndTypestesting dw
=========== End ============
The "dw" function writes nothing. Suggestion on how to get "shorthand document.write" function working. In the meantime I'm going to see if I can get Protype to provide a shorthand function.
if i am using jquery's $.ajax to load content and the content in the url ('test.php')
is <script type="text/javascript">function test() {alert('test called');
}
</script>
how do i get the function test() to execute?as if i call it (from the parent page in the success function)i get told it is undefined
I am getting $document.ready(function() not defined in the firebug console. I have seen that in most cases this is caused when the jQuery core is missing or the path is invalid. I do not believe this is the problem in my case becuase firebug shows the code as being loaded successfully and it is readable.
I have the following scripts in my head;
<script type="text/javascript" src="jquery-1.4.2.min.js"></script>
<script type="text/javascript" src="jquery.validate.js"></script>
<script type="text/javascript">
jQuery.validator.addMethod(
"selectNone",
function(value, element) {
if (element.value == "none") {
return false;
}}, .....
I have a button that when you click it displays the results of my db in a div. What I am trying to do is to get the results to update every five seconds.
I thought setTimeout was the best way to achieve this. However I am getting the error message that ID is not defined on the setTimeout line. I thought it would automatically input ID into the fields marked ID when the onloadXMLDocRefres ('File.php','txtHint') button is clicked?
The button works to load the script, but the refreshing the div is not.code...
I wanted to write my own script for a fade-in animation, since the ones I have found have got too many options or need some framework, which makes them unnecessarily big. I wanted to learn too.Unfortunately, the code didn't work as I wanted, and I commented some things so as to find out what's happening.Why is an object reference assigned to what was previously a string?
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