Local (var) Variables At The Top Of Function?

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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JQuery :: Iterate Through All Local Variables Like Window?

Feb 1, 2011

Is it possible to access local variables like I access global ones, ie. window["hey"] retrieves the global variable "hey".

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Avoid Temporary (local) Variables To Reassign This?

Nov 14, 2010

how to avoid temporary (local) variables to reassign this.Example as follow:

function Test(id){
this.id=id;
this.init=function(){
// some initialization go here

[code]....

This is terrible because it breaks the structure, and so many local temporary variables will be instantiated (possibly they will eat up the memmory).However, this type of reference is just so popular in jQuery, and they got a beautiful solution. Example:

$('li').each(function(){
// Do with $(this). This is beautiful, but I don't understand how could they make this scheme.
})

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JQuery :: Passing Local Variables To Callback Functions?

Jun 2, 2011

for some time I always found a workaround for this kind of problem. But somwhow, it feels wrong. So I'd like to know, if there's a common way to solve something like this[code]...

I'm defining the function and if the value of 'obj' hasn't until the function really gets called, this can work. But it just feels so wrong do have always global variables just to access them inside of a callback.[code]...

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JQuery :: Encode And Submit Local Variables Via Ajax POST?

Jun 12, 2010

I have acollection of local variables populated via Flash movies and scripts, and now I need to submit an ajax post (can also be get, but prefer post). I have tried:

$.ajax({
type: "POST",
url: "/myurl",
data: "p1=" + localParam1 + "&p2=" + localParam2,
success: function(msg){
alert( Bingo: " + msg );
}
});

The problem with this is the encoding of the localParam1 and localParam2 sometimes breaks the normal & delimeters. An even more problem is I sometimes haveupwards of 25+ local variables that I need to submit. These inline +s makes it feel, and look, like one huge hack - not to mention the encoding. One last restriction: I cannot use any jquery plugins due to the company's policy. So, I'm looking for something small and light as a solution - not a plug-in. Isn't there an easy way to do this? ONe thought I had was to create a new <form> on the page, and insert the variables as new <input /> fields - and then finally submit the entire form. Again, a big hack + css

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Injecting Local Variable To A Function

Nov 17, 2006

I'm looking for a way to define a function that's only effective inside
specified function.

Featurewise, here's what I want to do:

bar_plugin_func = function() { ...; setTimeout(...); ... };
wrap_func(bar_plugin_func);
bar_plugin_func(); // calls custom "setTimeout"

So while plugin developer thinks s/he's calling top-level function,
I want to hook it by somehow injecting local variable with the same
name.

Simply doing something like

;(function() { setTimeout = function() { ...my custom implementation
})();

is not ideal, as that'll taint global scope. Actually, I can live with
that for now,
but it's my technical interest to find a way to define it locally.

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Function Works Fine On Local, But Not Online?

Aug 19, 2010

I've a Javascript function that has to verify if a form field is empty or not. My function works fine on my local server (Vertrigo), but when I upload it on server (online), the function doesn't verify if form fields are empty or not.I'm not good in Javascript

<head>
<script type="text/javascript" language="JavaScript">
function empty()

[code]....

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JQuery :: How To Modify Local Variable Of Ready Function

Dec 11, 2011

I want to modify a local variable of the ready function set like so:
$(function () {
var modifyme = 0;
...
});
I cant change the code setting the ready function, as I am writing only a greasemonkey userscript. I already tried using the .data("events") method, but it never listed the "ready" event. Any function so I can modify the variable!

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Pass Local Variable From <head> JS Function To <body> Textarea?

Feb 25, 2011

How to: pass local variable from <head> JS function to <body> textarea

I have a JS function in the head that calculates a variable. the function is triggered by the vevent of a button click. when calculation is done, how is it sent back to the page and placed in a textarea or textbox?

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Javascript Function To Save The Modified Page Into Local Hard Disk...

Nov 13, 2002

I use NETSCAPE established a catalog page in XML, which uses Javascript-DOM to add, remove and sort the products by their prices. But which Javascript function should I use in order to save the modified page into local hard disk? to sort products as well.

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Get Variables Out Of A Function?

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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JQuery :: Using Variables Within Function

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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Pass Variables From One Function To Another?

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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Cant Use Passed Variables In Function

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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Variables - Function FormValidator(){

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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Getting Values From PHP Variables To Use In Function?

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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JQuery :: Bind Variables To A Function Call (like In Prototype.js Function#bind)

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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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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JQuery :: Accessing Variables Outside Of Function?

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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JQuery :: Use A Lambda Function With Variables From Outside?

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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JQuery :: Using A Function With Ajax And Variables?

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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Passing Variables To A Pop-up Page Function?

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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Passing Variables Into A Function From A Form

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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Adding Variables To A Function In A Form?

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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Php Variables Form Dual Use Function

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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Accessing Variables Inside A Function?

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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