AJAX Without Global Variables?

Aug 16, 2005

Is there a way to "pass" an XMLHttpRequest object to the callback
function for onreadystatechange? Or a way to access it from
onreadystatechange? I would like to avoid the use of a global
variable...

Example:

/* How do I get rid of this global variable? */
xmlHttp = new XMLHttpRequest();

function myFunc()
{
...
xmlHttp.onreadystatechange = myCallBack;
...
}

function myCallBack()
{
if (xmlHttp.readyState != 4)
{
return;
}

...
}

Any ideas?

View 2 Replies


ADVERTISEMENT

Global Variables And Global Arrays Whose Value?

Mar 2, 2010

How can I have global variables and global arrays whose value(s) can be modified and accessed by all the Javascript functions in my HTML document as well as by the HTML code?

View 1 Replies View Related

Global Variables

Dec 12, 2005

I have some code that does this:

function openWindow(windowName){
timeStamp = new Date();
var timeStamp = timeStamp.getTime();
document.getElementById(window).style.display = 'block'
}

blahblahblah . . .
openWindow('order'); // calls openWindow function and sets timeStamp variable.
alert(timeStamp);

then I get error: timeStamp is undefined. Why? I defined it as a global variable within openWindow. Am I just doing this wrong?

View 3 Replies View Related

URL`s As Global Variables

Feb 12, 2006

I`m building a site with html and GIF files on one server and audio files on another. That means I have to use absolute references to the audio files.

Problem is, the site will probably dwell some day in other server(s), and may also use a different audio format. I like to be able to globally change url strings and suffixes of the referenced files.

I think I can`t use "base href" because relative references (to files that are on the local server) would be affected.

The code looks something like this:

<a onclick=document.all.music.filename="URL/FILENAME.ZZZ" ...

I like to set "URL" and "ZZZ" on a separate file.

View 5 Replies View Related

Where Can I Declare Global Variables

Jul 23, 2005

I prefer to keep all my scripts in an external '.js' file. I am currently loading the external '.js' file from the header. Problem is I would like to declare a global variable in the external file, but I keep getting an error about the object does not exist.

Can someone tell me where or how to declare a global variable in an external file that is available after the page is loaded.

View 6 Replies View Related

Existence Of Several Global Variables

Jul 20, 2005

Suppose I have global variables: x1, x2, x3
and I have a function that needs to assign a value to a new global variable
x4

something like
function foo ()
{
count = 0;
do {
count ++
varname = 'x'+ count
} while (globalExists (varname)

eval ( varname + ' = "I am new in the x-series" ' )
}

how would the function globalExists () be implemented ?

View 5 Replies View Related

Global Variables Not Working, But *seem* Right?

Dec 29, 2009

Here's my code:

//document.write("Test");
//Declare arrays
stats = new Array(6);
statMods = new Array(6);
/*
//Populate stat and statMod arrays

[Code]...

without first calling the other function that actually assigns values, it still works. As I said, though, if I assign values outside that function, then it all falls apart.

View 8 Replies View Related

JQuery :: Working With $.get And Global Variables?

Jun 29, 2011

I've googled this and found a few different explanations that (as a PHP developer) are making absolutely no sense to me. I'm a total beginner with Javascript (not just jQuery) so a little help would go a long

[Code]...

View 2 Replies View Related

How Can We Call Global Variables In The Objects?

May 1, 2006

i am having two global variables and i m setting their values on calling some function. After setting the values, i call a function in an object ...

if MyHint is an object and i am calling the function in it, but i am getting the values of global variables as undefined in the function of object MyHint. Is there any way to access the value of the global variables.

View 4 Replies View Related

Global Variables - How To Interact With User

May 15, 2009

I'm new to javascript, but I need help and really hoping for a reply. I was trying to find an answer in Google but no result. So I have two table containing images, at the beginning only first table is displayed. Then when one of the images in the first table is clicked, a second table should appear, and user should click one of the images on that table. And that image should replace the one that was clicked originally in the first table.

So the question is, when the user clicks an image in the second table, how do I know what was originally clicked in the first one? I tried to use global variable but that doesn't work.

View 6 Replies View Related

Unable To Change Global Variables?

Feb 11, 2011

I am totally new to javascript..

1. I am taking data by opening text file from the server using javascript XMLHttpRequest
2. Using that, i am planning to plot data....

In the following code , i am setting global variable inside for loop .

[Code]...

View 1 Replies View Related

JQuery :: How To Write Global Variables In Functions

Nov 26, 2010

I cannot findout how I can write to global variables in a a JQUERY function.
<script type="text/javascript">
function checkusername (username ) {
$.post("[URL]", {
action: 5, username: username },
function(xml) {
result = $("apot", xml).text();
//<-- this variable is not global... why ??
message = $("message", xml).text();
//<-- this variable is not global... why ??
alert(message); //<--here variables are shown ok
alert(result);
});
alert(message);
//<--here variable is NULL !!
alert(result);
//<--here variable is NULL !!
}
</sctipt>

View 1 Replies View Related

JQuery :: Pass Global Variables To The Scope?

Jul 19, 2010

I'm having trouble letting functions I defined in jquery read javascript global variables I defined elsewhere.. for example I have a function defined within my jquery

$(document).ready(function(){
function performTabSlide() {
// do something with currentPosition;

[code].....

View 3 Replies View Related

JQuery :: Passing Global Variables To Function?

Feb 8, 2010

i have this problem in passing values to a variable in a jquery function.

i have a js variable that accepts a certain value and then i want to pass this variable in the jquery function.

For example, this is my script:
var autoScrollBool = "true"
var autoScroolInt = "10" (seconds)
stepcarousel.setup({

[Code].....

i want to replace the value of autostep: {enable:true to enable: utoScrollBool(the variable i created) , when i tried to assign it as is, its not working.

View 1 Replies View Related

Sharing Global Variables Accross Pages

May 23, 2004

I have an HTML page which loads another page inside an IFrame. Each of the two pages has its own javascript code.

I would like to be able to define one global variable which will be accessed from functions in both scripts. The variable must be single. That means that if a script in one of the pages changes it, the change will be seen by the scripts in the other page.

View 4 Replies View Related

Using Global Variables Defined In HTML Page?

Oct 14, 2011

I have an external js file used by an html page but I want to use global variables defined in the html page in the js file. for example...

<html>
<head>
<SCRIPT type="text/javascript"
var test = "1";
</SCRIPT>
<SCRIPT type="text/javascript" src="jscript.js">
</SCRIPT>
</head>

So I have var test which is defined in my .html but my jscript.js also uses the variable. I am doing it this way because I have a lot of pages that are simular using the jscript.js functions but each page has different quantities and values of variables used.

View 4 Replies View Related

Move Global Variables To Prototype Scope?

Jul 14, 2010

I'd like to move the global variables vertexBlaBuffer to the scope of the Geometry prototype [code]...

View 1 Replies View Related

Accessing Global Variables - Function DisplayResults - ImageArray

May 5, 2009

I've got a function displayResults(imageArray); that first calls removeElements(); to get rid of the currently displayed list items. Both functions are part of class function eventBox(array, string, date). both displayResults(imagearray); and removeElements(); have been bound to eventBox(); by e.g. this.removeElements = removeElements;

However, from within displayResults(imageArray); this.removeElements(this.identifier + "eventsul"); evaluates to "undefined". Also, this.identifier called from within the function also evaluates to undefined (it doesn't in other functions). For some reason I can't access global functions and variables from displayResults(imageArray);. Any ideas?

Here is the code for displayResults(imageArray); :

View 1 Replies View Related

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.

View 1 Replies View Related

JQuery :: Global AJAX Events, Not Working?

Aug 5, 2009

I've tried like this:

$("#loading").ajaxStart(function() {
$(this).show();
}).
ajaxComplete(function() {
$(this).hide();
})

I've triple checked the id of loading image and everything, but still doesn't work.

View 2 Replies View Related

JQuery :: Assign Value To Global Variable - From Ajax Function

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.

View 1 Replies View Related

JQuery :: Global Object Created In All IE Browsers When Aborting AJAX Requests

Oct 3, 2011

When a pending ajax request is aborted in IE browsers there is a new global object called "jQuery" + timestamp, for example "jQuery16405272192696596443".

This happens in every IE from 6 to 9 but not in Chrome, Safari, FireFox in their current stable versions. I am a bit lost and found nothing similar. I created a little test page to determine whether it started due to some own code or just in this little piece.

Example HTML:
<!DOCTYPE html>
<html>
<head>

[Code].....

View 1 Replies View Related

Ajax :: Variables In An App Do Not Match?

Jun 28, 2009

I'm working on an AJAX calendar. Visitors can select a date, fill out a form to request a meeting, and click submit. Here's what's crazy. My calendar has two parts: the top part displays the meetings for each day as well as the form and the bottom part displays the actual calendar. When you click submit, the top part update correctly, but using the same variable, the bottom part is incorrect. After doing some debugging I found that the variable for some reason changes between the php and javascript.

The rest of the code is unimportant because it does not pertain to my question. I have a callback function (show_cal) that uses eval() to parse the javascript built on the server. The getEvents function works without a hitch. The getCalendatMonth does not and here's why: in the php, the echo "alert(\"" . $date . "\");"; shows the correct response (2009-28-09) however the alert(date); in my Javascript only returns a random year (1975, 1976, 2000). Does anyone have any suggestions about why the two alerts would be different?

Here's the code.

java script:

function getCalendarMonth(date)
{
if(http.readyState ==4)
{

[Code].....

View 2 Replies View Related

JQuery :: $.ajax Ahref Variables

Apr 2, 2011

So i have eg:

So this is nog working and i know that normal but i don't know how to do it. I just want those variables that are added to the link into the data: in de js-script. I think i might need to create an onclick function? but then how to "split" them?

View 1 Replies View Related

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].....

View 3 Replies View Related

AJAX :: Pass Multiple Variables From PHP ?

Jul 8, 2010

I'm using AJAX to, on the click of a button, run a PHP script that dynamically generates a new line of text, and passes that to the script.The PHP script, new_sentence.php, just echos out the sentence.This works fine.But what I would like to do is for the PHP script to dynamically change JavaScript variables.how to pass multiple variables from PHP to JS.I can, of course, pass one by having the PHP script echo anything, and then use JS to set the variable to the PHP output. But what if I wanted to set two or three JavaScript variables at once?Here's my code in the HTML page that contacts new_sentence.php:

Code:
function ajaxRefresh(){
var ajaxRefresh;
ajaxRequest = new XMLHttpRequest();[code].....

When I press the "Refresh" button on the HTML page, it runs the ajaxRefresh function, which calls new_sentence.php. Then, once it gets the response, it changes the text of the element named "div" to whatever text the new_sentence.php echos.I'd like to figure out how to get a couple of variables.I would imagine this is simple. how to set the variables in PHP and then how to retrieve them in JS.

View 4 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved