Looping Variables In A Function Literal
Oct 19, 2005
Below is a stripped down example of code I'm using to count links in a
list. My intent with the ShowLinkNumber() function was to display the
number of the current link. (e.g. click on link 2, and the message "2"
pops up; click on link 4, and you see a "4.")
For reasons I can't trace, my function always displays the last number
in the list. Why does it do this, and can anyone suggest a way to
achieve my goal without adding markup? Code:
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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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Apr 24, 2010
I've been banging on this for a couple hours even though I'm sure it has a less-than-five-second fix. Hopefully somebody will glance at it and point out the obvious thing I'm missing.I'm using the onchange event of an html select element to trigger an array prototype function that looks for a value in an array and returns the indices of the array that contain that value, or FALSE if the array doesn't contain the value. For this example, here's the array being set up:
var instids = new Array();
instids[0] = 5;
instids[1] = 6;
[code]....
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Dec 31, 2009
How do I start my literal object as a function like you do when you use the new Object method.
e.g. var fn = function(){ ...code...}
var func = new fn();
I'm trying to achieve this using the literal object method like:
var fn ={
key: ''
}
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Apr 1, 2011
Am I able to pass a function literal (at least I think that's what it's called) to a jquery event handler, and retrieved the event details in the function?
[Code]...
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Mar 9, 2007
<script language="javascript">
function copy_tag1()
{ document.form_tag1.tag.select();
window.clipboardData.setData('text',
document.form_tag1.tag.value); }
function copy_tag2()
{ document.form_tag2.tag.select();
window.clipboardData.setData('text',
document.form_tag2.tag.value); }
function copy_tag3()
{ document.form_tag3.tag.select();
window.clipboardData.setData('text',
document.form_tag3.tag.value); }
function copy_tag4()
{ document.form_tag4.tag.select();
window.clipboardData.setData('text',
document.form_tag4.tag.value); }
</script>
<form name="form_tag1">
<input type='text' name="tag" value=��'>
<input type=button value="copy" onclick="copy_tag1()">
</form>
<form name="form_tag2">
<input type='text' name="tag" value=��'>
<input type=button value="copy" onclick="copy_tag2()">
</form>
<form name="form_tag3">
<input type='text' name="tag" value=��'>
<input type=button value="copy" onclick="copy_tag3()">
</form>
<form name="form_tag4">
<input type='text' name="tag" value=��'>
<input type=button value="copy" onclick="copy_tag4()">
</form>
The code above make it copy each tag value by clicking each copy button.
There are four copy_tag functions in the javascript.
If I have more forms to copy, I have to make more copy_tag functions.
Can I make the javascript to loop for many many copy forms with your help?
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Nov 22, 2010
what is the best way to setup one literal to be the prototype for another?So far I can only think of making a copy into a constructor.
Code JavaScript:
var meths = {
// creates a constructor function populated with a shallow copy of child
// the prototype for the new instance is set to the parent.
[code]....
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Dec 26, 2010
I have a problem with a function i created. I want an image to move from a to b and then start from a again. Without parameters this works really fine, but now that I have got more images I use parameters but I have no clue how to call the funtion again.
[Code]...
I tried to replace show(100,flo) with show(100,flo(zahl,r_g)) but then the divs only move from a to b but even will not come back to a again. I think the solution should be pretty simple but i cant figure it out.
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Sep 6, 2011
take a look at following link and let me know how I can add a loop to my script in order to repeat the animate() function for example for every 30 seconds?[URL].. as you can see the animate function just runs for one time but I would like to repeat it for every 30 seconds. I also would like to add a function to stop the animation when user mouse over on the Logo div.
[Code]...
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Oct 11, 2011
I've got an array of names, and one ID. I need to run an ajax call using the ID and each lastname, until I get a successful hit on the ajax call. I can't quite figure out how to determine if the function that runs the ajax call has succeeded or not, it always returns false for me... Here's the code for the loop:
[Code]...
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Apr 27, 2011
The inside alert works, but the outside one says undefined. Need halps please.
coder = new google.maps.Geocoder();
var coded;
function codeAddress(address) {
[code]....
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Jun 15, 2007
In jslint's doc it says, "JSLint does not expect that a var will be defined in a block. This is because JavaScript blocks do not have block scope. This can have unexpected consequences. Define all variables at the top of the function." What are some of those unexpected consequences?
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Sep 13, 2010
i declared 2 variables which i want to use depending on a conditional statement inside a jquery function unfortunately they don't seem to be working. do they need to be globals?[code]i know for a fact that the code works, when i add an alert inside the conditional statement it pops up fine, but these variables don't seem to get their values applied.
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Jul 20, 2010
How do i get a variable from one function into another function. I am new to javascript.
Here is my code ...
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Oct 11, 2010
I'm trying to reuse a script I have but, I'm not able to due to the fact I can't use some variables in a function.
I would like to know why I am not able to use passed variables in javascript.
For example: I call a function submit_data( 'newDomainForm', 'add_domain', 'list_div' ), in the function itself I would like to use the form name (first variable passed) as document.form.domain_name.value.
Later on I would like to use the div id: list_div in document.getElementById( div_id ).innerHTML. This doesn't work.
I have to put the name of the actual div like this: document.getElementById( 'result' ).innerHTML
And to get the value of a form element I have to put the actual name like this:
HTML Code:
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Dec 2, 2011
I'm looking for examples of variables.
This is what I have. Does this make sense?
function formValidator(){
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May 2, 2010
urrently I have the user log in, choose their character, and then go to a page where they can fight random monsters. When they get to the page to fight with the random monsters, the character's information as well as the random monster's information is pulled from tables in my database.
What I would like to do is when the user clicks the Attack button, perform a function that takes the monster's hp ($hp) and subtracts from it the character's attack combat value ($acv1).
how I can access the php variables within my JavaScript code and how I can go about doing this type of calculation?
I'd like to store the monster's hp in a javascript variable, so that when the character attacks, the hp can be updated until the character has reduced the monster's hp to zero, in which case a php script should be run that updates the character's table.
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Nov 4, 2010
is there a way in jQuery to bind variables to function calls similar as prototype.js does it? See [URL]
E.g. in the slideUp method of jQuery you can specify a callback that is called after the effect has finished. I would like to bind a variable to this call so that it is used inside of this callback as a closure.
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Apr 21, 2011
I don't know what I'm doing wrong probably pertains more to Javascript than jQuery.Why can't I access the 'myVar' variable my clicking 'myButton2'?
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Jun 15, 2010
I've got the following source code: function MyMenu()
[Code]...
I wish to execute the lambda function given at menuEntries[i].action. The list is build, but at a click i've got the error that menuEntries[i] is not defined. What should I do? I think
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Mar 30, 2010
Im trying to do the following thing, I have a function in javascript which I want to use to call anAJAX event, during this event the variable that is set in the function needs to be passed to the file called by the AJAX event. Basically I create 2 different versions of the same stuff inside the AJAX called files using the variables. But im running into some cross browser related issues, this all works fine in FireFox. However in Internet Explorer it sometimes works but gives javascript errors on line 99999ish. I have the following setup:
My index (currently calling startExample via onclick):
var exampleTest = 1;
function startExample()
{
example = exampleTest;
[Code].....
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May 24, 2010
I want a page with a hyperlink that passes a variable to another 'pop-up' page (in this case a name, its just an example) and new pop-up page prints a message followed by the variable thats passed.
Here is the code as it is right now
<html>
<head>
<script language="javascript" type="text/javascript">
function popitup(a)
[Code]....
In short, I just want the pop-up page to print 'Hello there Toby' or whatever name I choose to pass across. The 'testpopup.html' url is just the initial webpage.
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Jan 3, 2011
I have a vague idea of what might be going wrong but I have no idea what I should be doing instead. Here is what I'm trying to do: User inputs X and Y coordinates into form validate that they are numbers do a little bit of maths redirect to a php script with a single variable tacked onto the end of the url Here is the form code:
//part of a larger php script to make the form
echo "<form name='gotoForm' onsubmit='return coordCalc()'>
<fieldset>
<legend>Go to Square</legend>
X <input type='text' id='X' size='1' maxlength='3'/>
Y <input type='text' id='Y' size='1' maxlength='3'/>
<input type='submit'
[Code]...
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Jun 17, 2011
I have been asked to make some changes to a form that uses Javascript for the form validation. There is a 'function' that contains the variables of the various form fields and then further code to raise 'alerts' if one of the fields on the form hasn't been filled in. My problem is that for some reason I am unable to add an extra variable to this code after the field of 'County' (this will hopefully make sense when you see the code / link...) and I am stumped as to why. I am able to add variables for all of the other required fields except for 'Postcode' after 'County'. This is the case for both forms. The link is here: [URL] and the code I am trying edit is below. The issues seems to be when I add && isPostcode() to this chunk of code:-
Code JavaScript:
function checkAvailibility()
{
// re-calculate...
calculate ();
[Code]....
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Jul 5, 2010
I'm inexperienced with JS and I'm hoping that someone will knowCallback2)What I'm trying to achieve is for variables which come from PHP to be added to the map automatically. So far I have determined that variations on the theme of.Can someone tell me where I am going wrong? Hopefully someone looking at this is chuckling at the triviality of it!
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Sep 19, 2010
I've attached a cut-down version of a script I am working on. It's a pretty simple button with a function attached, which creates a random number and compares it with a preset value.I can't seem to get the function to read the variables
Code:
#<html header>
<script language="javascript" type="text/javascript">
[code]....
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