Global Variable Not Valid In Callback Function?

Aug 4, 2010

I am using jQuery 1.4.2 and I am trying to carry over the global variable totaltabs into my JSON callback function. The code seems to work properly, however, in my loadJSON function after the callback function loads the data, my totaltabs variable will not increment.

Here is a peak at my code.

totalItems is loaded from another function, not relevant to my example.

Code JavaScript:
var totaltabs = 0;
$(document).ready(function(){
resize();

[Code].....

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JQuery :: Related To Setting Global Variables From Anonymous Function (valid = False;)?

Oct 22, 2010

//<input type="text" id="s_field" value=""/>
var valid = true;
var div = $("#s_field");
$.post("index.php",{id: 6}, function (data){

[Code]..

When posting data, and getting response need to set valid to false - email is not valid.

1. in function it alerts valid is false
2. outside function it says valid is still true!

even i didn't wrote var valid = false;, but valid = false;I need to set Global "valid" variable to false.

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I have a .js file that receives a value from an html page. I'd like this
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value comes into the function and gets assigned to that variable, it is not
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Oct 29, 2009

I would like to store a variable then call it back later. I have a variable on line 198
www = ''+this._ad.clickUrl+'';
And on line 321 I try
document.write(www);
I've tried so many different options, just won't work. I have even tried to call document.write(window.www);

The code is below.. might be easier to read on [URL]
Code:
<html><head>
<title>Integrated Ad Sample</title>

<script type="text/javascript" src="[URL]">
</script>
<script type="text/javascript"> .....

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Oct 5, 2011

how to assign a value to a global variable within a function and can't seem to figure it out. Here's my thought,

<script type="text/javascript">
var global1=""; var global2="";
function assign(vari,strng){

[Code]....

The purpose behind this is creating a form that will work with an existing database that would normally have a text area with lots of information. I am trying to turn it into a checklist that I can run from a mobile device. The global variables woudl be used to fill in a hidden text area that would then be passed on to the database upon submission. I am trying to keep the code as compact as possible.

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Jul 19, 2009

How do I make a variable global so that all other functions can use it.But it is declared inside the function test()

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Nov 26, 2010

im trying to change a variable set outside of a function and calling the function with an onchange... i'm having problems getting the variable to change

<script type="text/javascript">
var price = '<?php echo $price; ?>';
function addtwo()
{
if(document.add.size.value == "2xl")
{
price = price + 2;
}
}
</script>

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Jun 1, 2011

How can I make my alert work? Right now it is undefined and I need to make my function in the variable global. Can this be done?

Code JavaScript:

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Mar 6, 2010

Is it possible to make a variable inside a function global (or at least usable in other functions)?

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Oct 8, 2011

I am trying to create a new global variable in a function with a custom name. I need something like this:

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Undefined Global Variable Yet It Is Recognized By Another Function

Oct 1, 2010

[code] Hide from browsers that do not understand Javascript.The addLoadEvent function adds functions to the window.onload command to load multiple functions at startup function addLoadEvent(func)[code]When the page loads I get the nice alert box that says loading and then one that says count equals 0.When i click my edit list drop down and choose modify I get a message box that reads count equals in edit function 0.If I type text in the textbox and leave the text box I get an alert box that reads count equals in subcheck function Undefined and then another one that says NaN.

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Nov 10, 2011

What I did wrong to make this code not work. Can you put a variable in a function callback?
<script type="text/javascript">
var aaa = prompt('number?')
var obja = new Const(aaa);
functin Const(numb){
this.x=numb;
alert(obja.x);
}
</script>

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Jan 20, 2010

I want to assign value to global variable in javascript from jquery ajax function.

Here i need the value of trueFalse from success function.

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I have a function which has a nested function in it. I need some variables in the first function to be available in the nested function. How am I supposed to declare a global variable in jquery?

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Sep 8, 2011

This is the code. I tried exploring the options of SQL for solving this, but they are limited. I want to pass newSync[i].id to the onsuccess callback function, but I fail

Code:

I fail even if I add newSync[i].id as a third argument to function(tx,results)

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May 15, 2011

I tried creating a global function to calculate the distance between 2 points.

jQuery.distance(p1, p2){
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var dy = p2.y - p1.y;
return Math.sqrt(dx^2 + dy^2);
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Somewhere else within my code, I declare a new variable in order to store the value returned by the distance function.

var distance = $.distance(particle1, particle2);

However this is not working.

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Mar 4, 2009

I have been trying to figure this out for a few days now and have finally come to the point where I think I got it but may just need a little push to get what I want.

Heres the situation:

I have this function that uses ajax to access a database and returns the results in the responseText. That part is working fine, I have confirmed that the responseText contains the information that I need

**************code*****************************************
//new ajax already created and assigned to the variable xmlhttp//
var response_recieved = "some data";
function get_answer(Table_Name, Field_Name, Data_Type) {

[Code]....

As evidence by my posting, this is not working correctly. The variable response_recieved is coming up undefined outside of the callback function assigned to the onreadystatechangeproperty.

Based on the information that I have gathered online from various forums, I believe this issue has to deal with a problem with closure in the callback function assigned to onreadystatechange property. I don't think it has any. Based on the fact that there is no anonymous function in that function. But my problem is that the call back function is anonymous itself... I think???

get the variable response_recieved to survive outside of this function.

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Oct 23, 2010

I can't seem to get a variable declared from within a post callback, so that I could manipulate my script accordingly. I have delete.php, that deletes an id from a mysql db. If it fails, I want the script to stop and display the error. The .php script echos an "ok" if everything went fine, if not - it echos the error.var abort_error; // set the error variable

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if(data != 'ok') {

[code]...

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May 4, 2010

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I am simply trying to use a global variable in javascript, but can only access the variable on the second call. I can't find anything that relates to this through my searches. My application is supposed to query the server for XML that tells me which years and months are available to put into combo boxes. I want to store this xml in a global variable to access it later.

[Code]....

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I was wondering if the following would be a valid JavaScript
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lower?

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function getVar(){
alert('getVar() called');
return(true);
}

alert(someVar);
alert(someVar);

It seems to be working in FF 2 an Safari 3.

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I am creating a survey. I want to set a variable, which is sent to google analytics, as the current time. this is the code and works fine:

HTML Code:
<script type="text/javascript">
<!--
var d1 = new Date();
var curr_date = d1.getDate();
var curr_month = d1.getMonth();

[Code]...

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If I have a global variable in one <SCRIPT>...</script>, is it available in the 2nd <SCRIPT>...</script>. I do not know if "global" means the whole document or the whole <SCRIPT>...</script> only.

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I've created a site where the pages generally contain a table of
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I try to avoid using global variables, but I am stumped how to
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Here's the function that the pages call initially and the 2nd function
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I have a global variable which does not want to change :
<header>
....
<script type="text/javascript" language="JavaScript">
var i=1;
function swap()
{
var window.i = 1 - window.i ;
}
.....
</script>
....
<body>

<A href="" ... onclick="swap()"<img src="pix/star.gif" </A>

when clicking on 'star.gif', i does not change from 1 to 0 ...

Any clue ?

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