An XMLHttpRequest event handler. Called whenever the readyState attribute changes.
https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/onreadystatechange
Questions tagged [onreadystatechange]
106 questions
3
votes
3 answers
XMLHttpRequest onreadystatechange never fired for readyState 0
I set up the usual XMLHttpRequest and everything works fine so far, I can retrieve data and readyState changes and does all sorts of things.
One thing that doesn't happen though is that readyState ever triggers the onreadystatechange() function when…
Rob
- 81
- 1
- 9
3
votes
1 answer
javascript class calling XMLHttpRequest internally, then handling onreadystatechange
this thing almost works:
function myClass(url) {
this.source = url;
this.rq = null;
this.someOtherProperty = "hello";
// open connection to the ajax server
this.start = function() {
if (window.XMLHttpRequest) {
this.rq = new…
Radu M
- 33
- 1
- 4
3
votes
1 answer
return Json object from event onreadystatechange of ajax
i make a ajax request to a json string and then i parse it, i want to return this Json object called "encuesta" from event onreadystatechange to the "jacu" variable to access globally
heres my code:
window.onload= function(){
enter code…
LuisDavis
- 145
- 1
- 6
3
votes
1 answer
Ajax > onreadystatechange - open/send > order totally arbitrary?
I have a little 'incidental' question:
When sending a request with Ajax... open has to antecede send, for sure... but what about the onreadystatechange allocation?
Logically set before open-ing the Request object, after send-ing or in between?
To…
sasha
- 779
- 10
- 21
3
votes
3 answers
Call order of jQuery ready callback
If have two javaScript functions in a page which are required to be called when document load is complete. Is is possible that any function can executed first or it will be the first function which is executed first always?
So if using jQuery if you…
Toseef Zafar
- 1,601
- 4
- 28
- 46
2
votes
3 answers
How to imitate cross-browser $(document).ready() behavior without JQuery
Possible Duplicate:
$(document).ready equivalent without jQuery
I have a script I need to write that needs to execute on DOM ready, but I can't have dependency on JQuery as part of the script.
I want to imitate $(document).ready(), How can I…
David MZ
- 3,648
- 6
- 33
- 50
2
votes
1 answer
JS Ajax onreadystatechange is not defined although object exists
I am struggling with this for a day now, and going in circles and help would be greatly appreciated :-)
Abstract
Asynchronous ajax calling cgi with resolver and fqdn variables in order to return a dns resolution agains this pair. (returns the…
osse
- 43
- 1
- 8
2
votes
1 answer
AJAX onreadystatechange function not always called
I have a AJAX call to retrieve some XML using the below method. Often when I run the code it does not enter the onreadystatechange function until the last iterations of my foreach loop. I'm assuming this is because the calls to "www.webpage.com/" +…
Nick
- 179
- 4
- 13
2
votes
0 answers
Reading a text file through javascript on Mac OS
I want to read a local text file through javascript. I copied the code from How to read a local text file?
but its not working.
Here's the code snippet,
function readTextFile(file)
{
var rawFile = new XMLHttpRequest();
rawFile.open("GET",…
Frosted Cupcake
- 1,909
- 2
- 20
- 42
2
votes
1 answer
onreadystatechange is not called in firefox
Here are my codes.
my function to send ajax request and return a value:
function myAjaxCall(){
var myValue=0
var async= false //I have to use synchronized request(otherwise my return value is 0)
xmlhttp.open("GET",URL,async);
…
Mellon
- 37,586
- 78
- 186
- 264
2
votes
2 answers
Javascript window write callback
Is there a way to for a parent to know when a child window has loaded it's content? Without any script in the child.
Here is my current code:
var printWindow = window.open('',…
user59388
- 159
- 1
- 10
2
votes
1 answer
Onreadystatechange callback behaviour for XMLHttpRequest
If XMLHttpRequest is used with asynchronous mode, then are the onreadystatechange callbacks for 0,1,2 states called in UI thread only or in the background thread?
And is it possible that this behaviour could be different in different browsers?
Best…
keshav84
- 2,291
- 5
- 25
- 34
2
votes
2 answers
ajax ready state reachs 4 but status always is 200
my ajax code is:
xhr.onreadystatechange = function() {
if (xhr.readyState == 4) {
alert(xhr.status);
if (xhr.status == 200) {
alert("200");
}
else if (xhr.status == 8001) {
…
behnam27
- 241
- 2
- 4
- 11
2
votes
1 answer
How can I access the result of the response of HttpRequest in Dart?
After many attempts to get the content of the response in HttpRequest, I failed completely to know or understand why I can't have what I want, and I must mention that I can log and manipulate the response only inside an onReadyStateChange (onLoad…
Saïd Tahali
- 189
- 10
2
votes
0 answers
Ajax ready state not stuck on 1
after searching the internet I was unable to find an answer as to why my AJAX code is not working. My assignment is to retrieve a text file and display it to the browser using AJAX but the ready state stops at 1. an example file is canada.txt and is…
Brandon Burr
- 21
- 1