XMLHttpRequest: loadend event
The loadend
event is fired when a request has completed, whether successfully (after load
) or unsuccessfully (after abort
or error
).
Bubbles | No |
---|---|
Cancelable | No |
Interface | ProgressEvent |
Event handler property | onloadend |
Examples
Live example
HTML
<div class="controls">
<input class="xhr success" type="button" name="xhr" value="Click to start XHR (success)" />
<input class="xhr error" type="button" name="xhr" value="Click to start XHR (error)" />
<input class="xhr abort" type="button" name="xhr" value="Click to start XHR (abort)" />
</div>
<textarea readonly class="event-log"></textarea>
JS
const xhrButtonSuccess = document.querySelector('.xhr.success');
const xhrButtonError = document.querySelector('.xhr.error');
const xhrButtonAbort = document.querySelector('.xhr.abort');
const log = document.querySelector('.event-log');
function handleEvent(e) {
log.textContent = log.textContent + `${e.type}: ${e.loaded} bytes transferred\n`;
}
function addListeners(xhr) {
xhr.addEventListener('loadstart', handleEvent);
xhr.addEventListener('load', handleEvent);
xhr.addEventListener('loadend', handleEvent);
xhr.addEventListener('progress', handleEvent);
xhr.addEventListener('error', handleEvent);
xhr.addEventListener('abort', handleEvent);
}
function runXHR(url) {
log.textContent = '';
const xhr = new XMLHttpRequest();
addListeners(xhr);
xhr.open("GET", url);
xhr.send();
return xhr;
}
xhrButtonSuccess.addEventListener('click', () => {
runXHR('https://raw.githubusercontent.com/mdn/content/main/files/en-us/_wikihistory.json');
});
xhrButtonError.addEventListener('click', () => {
runXHR('http://i-dont-exist');
});
xhrButtonAbort.addEventListener('click', () => {
runXHR('https://raw.githubusercontent.com/mdn/content/main/files/en-us/_wikihistory.json').abort();
});
Result
Specifications
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
loadend_event |
18 |
12 |
5 |
10 |
≤12.1 |
Yes |
≤37 |
18 |
5 |
≤12.1 |
Yes |
1.0 |
See also
© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/loadend_event