Function() Declaration - With No Name - When Does It Execute

Feb 14, 2010

I've been looking all over for an explanation of this function declaration but cant find it. what it means to have a function with no name, just declared as this. When does it execute? How does it get called?

For reference, here's the function:

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Function Declaration

Dec 13, 2006

What is the difference between:

function setupGrid( param ){......}

and

setupGrid = function( param ){......}

Are there any advantages to doing one over the other?

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Use A Literal In A Function Declaration?

Jun 14, 2010

I have the following code which attaches a function to events in x number of comboboxes (x will probably always = 4, but I do not want to hard-code this). I wish to pass the value of i to the function being attached as well as the value of tempData. In other words, I want the parameters in function to be the value, not a reference variable.

In the current example, I am using the hard-coded variable ci. This I want to be replaced by a literal created when the event handler is attached (the value of the loop variable i). Also, notice that I get the filter value in the event handler (assigned to the variable ct). I would like to replace this code with the value of tempData which would also be determined when the evenet is attached (it is the same value in this case, but it keeps the onChange event from having to do this each time it runs).

var props = {
col_0: "select",
col_1: "select",

[code]....

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Declare Null Parameter Within Function Declaration?

Feb 13, 2009

Take a look at this example:

Code:

function foo(var1, var2=NULL){
if(var2 != NULL){
//do something
}

[Code]....

and in this scenario, var2 would have a NULL value

My question is: Is it possible to declare a null parameter within a function declaration in javascript? (as in the example)

I know this is possible with PHP, but i am having problems with this in Javascript.

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Same Function Declaration In Diff JavaScript Files

Jan 6, 2006

I have Declared same function and two diff javascript files and both files are included in HTML page and one more same function declared in HTML code too... So problem is that, which function will execute first, i mean function in either javascript or function in HTML Code?

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Variable Declaration - Specify Arguments When Writing A Function

May 11, 2011

If you specify arguments when writing a function should you still declare the argument variable inside the function?

example:

Code:

or

Code:

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Close The Function Off After Execute?

Dec 7, 2009

The function is called from a child popup window which closes the child when called. The function works well however when the child window is closed the cursor on the parent window continues as if it is trying and load something (although nothing is being loaded). Do I need some sort of end function to close the function off after it is executed?

[Code]...

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Get String In URL, Execute Function?

Mar 27, 2009

I'm looking to autosubmit a form on page load, but only when the url contains a certain word.

Here's how I want it to work...

<script type="text/javascript">
function myfunc () {
if (url contains http://www.mysite.net/search.aspx?search=) {
var frm = document.getElementById("foo");
frm.submit();

[Code]....

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Execute Function After Div Loads?

Aug 20, 2010

How to execute function after div loads

heres my function, if div exists return "true", now how to use chkObject('div') do loop until return true?

Code:
function chkObject (theVal)
{
if (document.getElementById(theVal) != null)
{

[Code]....

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Set A Function To Execute When A Select Box Changes?

Aug 30, 2010

I'm not even sure if I'm using the correct terminology when I say "binding", but here's what I'm looking to do.

I want to set a function to execute when a select box changes. I know I can do it like this:

Code:
<select id="select-box" onchange="functionCall();">

I really like how jQuery makes it easy with something like this:

Code:
$('#select-box').change(function(){
...
});

What's the best way to do this with pure javascript? Basically I don't want to add the function call to my markup.

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Follow Link, Then Execute A Function

Nov 17, 2006

I need to execute a function after a link to a section within the same
document has been clicked and the navigation has occurred. When using
the onclick event handler the JS function is executed before the
navigation occurs. I can't tie it to a window.onload event since the
link only navigates within the already loaded document.

I'm not having any luck searching due to not knowing what keywords to
use. I looked at an explanation of bubbling vs capturing, but that
doesn't appear to be what I need.

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JQuery :: Execute A Function When Another Has Finished?

Apr 8, 2010

Just posted this thread a few mins ago and for some reason it got deleted? Maybe it was because of the URL shortening I used. Anyway here is an example of what I mean

[Code]...

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Execute Script Function With No Event?

Feb 9, 2009

I want to execute a javascript function from my html code without using an event handler or <body onLoad() =...>

Isn't there a way you can insert something like this in the middle of html code...

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Execute A Function In An External Js File?

Sep 15, 2010

I'm trying to execute a function in an external js file. I have the file linked

Code:

script type="text/javascript" scr="./JScript/JSFile.js" language="javascript"></script>

In my form the action points to the JSfile

Code:

action="JSFile.js"

My submission button has a link to the JS function

Code:

<a hef="javascript: function()"><input type="submit"></a>

When I click the submit button, it shows the JSFile instead of executing the function.

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Execute Function On Current Item?

Aug 28, 2009

I have this code which removes a class from an item on mouse out.

Code:

function mouseOut8( ) {
$('.bar8')
.removeClass("barover");
}

I would like to change this so that the class is removed from the item I have just moused out of instead of specifying the exact item. This is so I can use this function for multiple items. I tried replacing the '.bar8' with 'this' but it didn't work.

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Execute JS Function After Page Loads ?

Sep 23, 2010

I have long html/CSS (no CMS or php, etc.) web pages. Some people run away when they see too much content on a page. So I hide the large lower section of the pages and have the user click anchor text to execute simple JS code to change the display from 'none' to 'block' or back to re-hide.

Code:

(BTW my research indicates that search engines do not know the difference between display='none' and normal content, or I would not be hiding content in the first place.)

Within this hidden content, I have anchor text to provide name handles

Code:

So users can click a link and go directly to that section. Within that link I include

Code:

So that works fine within a particular page. But when I want to link to an anchor on another page which is within this hidden content, the browser cannot display the anchor text because it is still hidden.

Is there a way to execute the JS code to change the DOM, changing the display to 'block' on the content of the new page?

I do not see how, because the new page isn't loaded yet, there is no DOM within the browser yet, so how can it be manipulated?

Of course if I was using php I could generate the code with the property set as desired. But for straight up html/CSS/JS pages is this possible?

I get the feeling I am missing something simple here, either a simple solution or the simple fact that this is just an inherent limitation of html.

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Execute A Function On Page Load Not After?

Jun 23, 2011

I have been trying to work my way around this issue for some time now. I am trying to stop a marquee from scrolling as soon as the page start to load not after. I have been using this to pause the marquee with JavaScript but the command does not execute but after the page loads; after all the html loads.

This is the JavaScript:

Code:
<script language="JavaScript">
window.onload=function(){
myMarquee.stop();
}

[Code].....

With this code the marquee does stop but after the page loads completely so as the page loads the marquee start to scroll and then stops as soon as the page finishes loading but with the first image of the marquee have way out. I need to be able to load the marquee 100% stopped as the page loads so then I can use the buttons I placed to control the marquee.

My question is:

Is there ANY way to completely stop the marquee from scrolling as soon as the page loads??

how to scroll the marquee by click; meaning by every click of the mouse the marquee moves either left or right, would be even better. p.s: Noted that this code does NOT work in FF for some reason. The stop does not work and the buttons don't respond. why in FF they don't work but in GC and IE they do?

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Possible To Follow Link And Execute Function?

Mar 12, 2010

I have a javascript code which makes a word toggle links under it. For example: Before clicking on it it looks like this:
Stories:
then once its clicked on it looks like:
Stories:
story 1
story 2
story 3

How can I make it so when you click stories it creates that list and also goes to story 1. Here is the code I have:
Code:
<h2 style="margin-left : 25px;"><img src="/images/sort_ASC.gif" id="img_DegreeList5" alt="" />
<a href="javascript:toggleDegreeList(5);" style="color:#336699;">Teaching Tales</a></a></h2>
<div id="DegreeList5" style="display:none;">
<ul><ul> <li><a href="teaching_tales1.php">Story 1</a></li>
<li><a href="teaching_tales2.php">Story 2</a></li> </ul></ul>
</div>

And here is the toggledegree script
Code:
<script type="text/javascript">
var currentDegreeList = null;
function toggleDegreeList(which) {
if(currentDegreeList) {
document.getElementById('DegreeList'+currentDegreeList).style.display = 'none';
document.getElementById('img_DegreeList'+currentDegreeList).src = '/images/sort_ASC.gif';
}
if(currentDegreeList != which) {
document.getElementById('DegreeList'+which).style.display = 'block';
document.getElementById('img_DegreeList'+which).src = '/images/sort_DESC.gif';
currentDegreeList = which;
}
else {
currentDegreeList = null;
}
}
var submitted = false;
function submitForm() {
var val = (submitted) ? false : true;
submitted = true;
return val;
}
</script>

If you actually want to see the live page its here [URL].

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Execute A Function Just Before Closing The Window?

Jun 30, 2009

I want to execute a javascript function when ever the user clicks the window's close button, means before closing the window I should be able to execute my function.

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JQuery :: Callback Function Doesn't Execute?

Sep 8, 2010

$("#scroll").hover(function(){
$(this).find(".front").stop().animate({
top:"184px"},500,function(){
$(this).find(".front").stop().animate({ top : "7px"}, 300);
});
});

I try to make a scrolling picture. when mouse roll over the image with .front class will scroll down, but it has to come back after mouse roll out. the scroll down is working but I wrote a callback function, but it doesn't work.

html part
<div id="scroll">
<a href="../images/big_html/babytracker_b.png">
<img src="../images/thumb_html/jukebox.jpg" />
<img src="../images/thumb_html/Tracker.jpg" class="front"/>
</a>
</div>

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JQuery :: Execute Function And Subscribe At Same Time?

Apr 11, 2011

We're trying to enhance and optimize the forms in our projects with jQuery, but I don't know if something we want is possible. Nowadays we are using simple javascript to enable and disable elements in our forms, we have a part to execute when the document is loaded and another that is executed with the interaction of the user.

For example, we have a simple select with "Race" : "Caucassian", "African" and "Other", when the user selects something we enable or disable a textfield (where the user specifies the other race) depending of the election; and when the user saves the data and reopen the form to modify the elements, we execute a function that evaluates the value of the select (previously loaded from the database) and enable or disable the textfield.

We need to optimize this because we've got really large forms (sometimes with 400 different fields) and it would be great to do this in 1 step and have one file with the behaviours instead of doing this once for the interaction and once for the reload. I've been thinking in a way for subscribing to the onchange and execute it at the same time, but I don't know if there's any way of doing that...

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JQuery :: Execute Function On Input Change

Jan 22, 2010

I have a select form with id=px. I want to make the select execute a function every time an option is selected. I took the Change function and my code looks like this:

$("#px").change(function () {
var str = "";
$("#px option:selected").each(function () {
str += $(this).text() + " ";
});
// $("div").text(str); - this line is changed with my function
$('#selectable1 span.cica').css('font-size', str + "px");
})
.change();

It looks that srt variable is not working with my .css function. What is wrong?
My markup is:
<select id="px">
<option class="option" value="8" label="8">8</option>
<option class="option" value="9" label="9">9</option>
<option class="option" value="10" label="10">10</option>
<option class="option" value="11" label="11">11</option>
<option class="option" value="12" label="12">12</option>
<option class="option" value="14" label="14">14</option>
<option class="option" value="18" label="18">18</option>
<option class="option" value="21" label="21">21</option>
<option class="option" value="24" label="24">24</option>
<option class="option" value="36" label="36">36</option>
<option class="option" value="48" label="48">48</option>
<option class="option" value="60" label="60">60</option>
<option class="option" value="72" label="72">72</option>
</select>

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Nov 18, 2011

I'm trying to execute a simple JSON request using getJSON but I can't get a successful response. My code is below. If I run this I always receive an error. If I add "callback?" (making it JSONP) then I can see the correct results in Firebug but the call back function is never executed.
function getResults(url) {
var gptUrl = "[URL]";
$.getJSON(url, {f: "json"}, function() {
alert("success");
})
.success(function() { alert("second success"); })
.error(function() { alert("error"); })
.complete(function() { alert("complete"); });}

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Feb 8, 2011

I was wondering if someone can help me write some jQuery that would be executed after 1.8 seconds pass. Well what I want to be executed is all div tags to be shown. As$(document).ready(function() {
("div").show();});would show all div tags when the document is loaded.Is there a way I could do something like what I have written inpseudo-code$(document).wait("1800", function() { ("div").show();});

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JQuery :: $.get Function To Execute A Php Script Onload

Oct 20, 2009

I have no idea why this would function correctly under every browser but IE8. I'm using the $.get function to execute a php script onload.

Here's the code

The script itself is a simple mysql update query and given that this issue only effect one browser, it's clearly a issue on the client side.

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Jul 20, 2010

I'm having a hard time executing a function inside JSON.[ code]...

How do I execute the errorPlacement function inside the lsmsValidate JSON?

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