Late Rendering Of Parameter In An Event Handler
Aug 12, 2011
I have a javascript that dynamically changes the onclick event handler of a column in a table. It is like this:
Code:
I pass the cell ID to the onclick event handler in order to tell the onclick event handler where to put good data back to the cell. Unfortunately, the code above will pass the wrong cell ID to the onclick event handler. It will the cell ID of cell #3 instead of cell #2.
I can get around with this problem by making sure the value in the cell-ID variable doesn't change, like this:
Code:
Seem like the javascript run time module only passes the value in sCellID to the onclick event handler at the end of the function ChangeEventHandler(). And by the end of that function, the sCellID has the cell ID of cell #3. That may be why the onclick event handler gets the cell ID of cell #3 instead of cell #2. But what is the logic?
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Jun 11, 2011
Is it possible to set an html element's (created through HTML DOM's createElement() method) 'onclick' attribute's value to a Javascript function which requires a parameter, passing a variable to it at the same time?
I have the following Javascript code:
var parentDiv = document.getElementById("subscribers");
var stubSpan = document.createElement("span");
stubSpan.id = "opentok_subscriber_" + stream.streamId;
stubSpan.onclick = showStreamInFullScreenMode(stream);
parentDiv.appendChild(stubSpan);
'stream' in the bolded line is a parameter variable of the function that the above code is in, and I'm trying to pass it to another function using an onclick event.
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Oct 31, 2005
I need to convert
<div onmouseover="mousehand(event,'outerjob123');">
to a javascript call, ie.
x = document.createElement("div");
id = 123;
x.onmouseover = mousehand(event, 'outerjob' + id);
However, the syntax doesn't seem quite right, can someone enlighten me?
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Jun 4, 2009
I have a jquery slidedown effect which id triggeref onchange of dropdownBut the slide down effect starts a few seconds after the option is change.It delays
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Jul 23, 2005
I'm seeing surprising behavior, consistent across Opera, Firefox, and IE.
An event handler is changing the value of an element, and there is apparently
no Change event being generated for the element. A simple illustration is,
make an INPUT element with an onchange; type in a new value, the Change
event handler is called. But make a button whose Click handler changes the
value, and the Change handler does not get called.
It appears that events are not generated while an event handler is running.
Can this be true?
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Aug 11, 2005
How can I interrupt the enter key so it won't trigger unwanted events on my
web page? I have tried this:
var defaultEventHandler = obj.getEvent("onkeydown");
var myEventHandler = function(event){
if(event.keyCode==13){
alert(obj.getProperty("selection/index"));
}
else{
defaultEventHandler.call(this, event);
}
}
obj.setEvent("onkeydown", myEventHandler);
But it won't even enter the function.
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Apr 5, 2011
I got following document:
When you click the main button, will one of the six images get a background image, and you can then press the image with the background image, and get your "reflextime".
But it won't work. When I press the image, were the new background image has shown, you can click on it and get your time - why?'
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Jan 12, 2006
I try to add a function to be triggered also within an event (which already has a function). I coded it, unfortunatelly one line of the code should be different for IE and Moz. I try to find a common way without using a browser detector... Any ideea? The red line works for Mozilla, the blue one for IE:
function addFunc(){
var e = document.getElementsByTagName('*');
for(var i=0;i<e.length;i++){
if(e[i].getAttribute('onclick')||e[i].getAttribute('onclick')!=null){// Moz || IE
//var f = new Function(e[i].getAttribute('onclick'));
var f = e[i].getAttribute('onclick');
e[i].onclick=function(){f();otherFunction()}
}}} Code:
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Oct 19, 2005
I have no problem attaching an event handler to a single anchor labelled with an id. But I can't get the following to work on all anchors, meaning nothing happens. Any idea about what's wrong here? Code:
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Dec 14, 2006
Im using onKeyUp on a text input field and everytime some information is gathered from a database through ajax.
Is there anyway to cancel onKeyUp events that are within X seconds of the previous event trigger? I dont want to use setTimeout because i dont want them called at all.
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Jan 11, 2010
I modified a particular page in the following way:
I ran an init function on window.onload, which iterated thorugh the checkboxes on the page and assigned an event handler function - let's call it validate() to each checkbox.
I tested it in the big 5 browsers and ran into a strange issue in I.E. only -
let's say there are the following checkboxes code...
When I click on "box1" the function is not called. When check "box2" the function is called but by "box1", when I click on "box3" the function is called by "box2" and so forth...
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Nov 22, 2006
I'm trying to dynamically create an image map for a particular image on my website, and I'm running into an issue where I try to register the "mouseover" and "mouseout" events for the AREAs of my image map.
Here is an abbreviated version of my code:
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Jul 20, 2005
I want to change the event handler for a form field, using JS code. But
there doesn't seem to be a way to reference it. MyForm.SomeField.onChange
is undefined. Anyone know if there's a way to do this?
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Jul 11, 2010
I've many div with sequence of ids like d1 d2 d3 ... and I need to listen to their click event so I'm using a loop to add an event handler to them, Here it's my code:
for(var i = 0; i < $ds.length; i++){
var $d = $ds[i];
var xFunc = function(e){
document.title = "d: "+$d;
[Code]....
But when I click on each of them always the title goes to "d: 4" where 4 is the last value in $ds.
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Sep 17, 2010
I'm creating a drop down menu so that when a user clicks on the drop down arrow and then hovers over one of the options, a bubble comes up and does a validation. The thing is that everything works fine in Firefox, but not in IE or Chrome. The problem is that the .mouseover() function doesn't work on the <option> tags in IE and Chrome, but it works fine in Firefox because apparently FF is the only browser that supports it.
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Jun 9, 2009
<label id="mylabel" onclick="myOnclickFunction()">My Label</label>
How to get the "myOnclickFunction()" _string_ with jQuery? JavaScript getAttribute("onclick") works fine, but I want to do it through jQuery.
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May 8, 2011
I have a form with a text box. As you know, if a user has previously entered data into that text box from the same machine, then a dropdown list appears in the browser showing previously entered values. That's fine; however I have an OnKeyUp event on this box so if a user selects from the dropdown list then the event isn't triggered. Is there any way to recognise this action as an event? None of the normal event handlers appear to do it.
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Mar 25, 2011
i have registered a validation function as the onclick event handler. It runs for the first time but does not run when i click on the button the second time. ( this is because i have put an aert box in the validation function and it does not show up when i click on the submit button for the second time)
here is the code
Code:
<input type="submit" value="Submit" action="submit.php " onClick="return validate('add_item_form');">
Code:
function validate(form_name){
validate=1;
string="";
[Code]....
when i leave all the fields of the form blank then the error message is displayed. But when i click on the submit button again then the validation function does not run.
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Feb 19, 2010
I am working on a project that takes links on a page (Not all, depends on if they are Merchandise links or partner links), and passes some parameters to a tracking js call.The problem is, I don't want to put 'onclicks" on every href as there could be a hundred on a page and many of the links are dynamically generated on the backend.So, I was thinking of creating a function that took in parameters from each of the links that are pressed. we have two links (there will be many more, but for an example sake).
<a href="somelink.html" id="linka">link a</a>
<javascript>
var cu = new Linktracker({
[code]...
Should I use just "bind" or "bindAsEventListener"?Since each link on the page is unique and will pass different values, what is the best way to do this without putting "onclicks" on every link?
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Apr 28, 2011
I'm having trouble passing an array into an event handler.This does not work:
var lightbulb = [1,1,1,0,1,0]
var banana = [0,0,1,1,0,1]
function changetextimage(arr){
[code]....
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Aug 8, 2011
I know that there are two ways to declare an event in javascript. code...
Now, how can the second method work with functions that have parameters??? Since we can't use parenthesis, how do we pass in the arguments?!
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Jun 19, 2009
I'm use prototype quite a lot for ajax calls, but have always used inline onclicks. I'm trying to be less obtrusive by creating event handlers/listeners.I used to do this with the aid of pHp to place arguments into the function (usually via 'while loop'):
<li><a href="#" onclick="dofunction(arg1,arg2);">item 1</a></li>
<li><a href="#" onclick="dofunction(arg1,arg2);">item 2</a></li>
<li><a href="#" onclick="dofunction(arg1,arg2);">item 3</a></li>
[code]....
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Feb 23, 2007
As far as readability and consistency, which is better in your opinion (or if functional difference, that I didn't account for,)
Event.observe($('txtName'), 'keypress', handleKeyPress);
Choose one:
A.
Code:
function handleKeyPress(event) {
alert(event.keyCode);
}
B.
Code:
function handleKeyPress(evt) {
evt = evt || window.event;
alert(evt.keyCode);
}
C.
Code:
function handleKeyPress(evt) {
evt = evt ? evt : window.event;
alert(evt.keyCode);
}
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Jun 10, 2010
i have two links,i left the second one alone so you can see what result i want. but the first link is where i am attempting to remove the inline event handler (onclick) but i want the same result.
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Feb 11, 2009
I've successfully used the Random-Order javascript on my site for years to shuffle around a number of banners on my main page.I now want to add an onClick event handler to each banner so that I can use Google Analytics to track those exit links, but I can't get the script to work when adding the onClick; the banners just don't show up on the webpage then. I'm pretty sure that some coding needs to happen in the function area below the content section, that just putting the onClick in each item won't do it, but I don't write this stuff, so I have no clue what to do to make it work right. Here's the script WITH the onClick code I would like to add in red. If you were to remove everything in red, the remaining code would be exactly as it currently appears on my site and works properly. [code]
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Dec 5, 2005
<td onMouseOver="foo(event,this,'string');">something</td>
It works fine i.e. the event handler function foo is fired with the
event parameter containing the event. I do the cross-browser thing to
handle the event parameter
var evt = (evt) ? evt : ((window.event) ? event : null);
and I am all set
But when I try to do the same thing by scripting i.e. get the TD node
via the DOM and add in the event handler like so
var td=document.getElementById('tdid')
td.onmouseover=function() {
foo(event,this,"string");
|
It works in IE, but in Firefox (1.x), I get an error in the JS console
"event is not defined".
Why is this? Any way to get consistent, cross-browser behaviour?
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