The XMLHttpRequestEventTarget.onload
is the function called when an XMLHttpRequest
transaction completes successfully.
Syntax
XMLHttpRequest.onload = callback;
Values
callback
is the function to be executed when the request completes successfully. It receives aProgressEvent
object as its first argument. The value of this (i.e. the context) is the sameXMLHttpRequest
this callback is related to.
Example
var xmlhttp = new XMLHttpRequest(), method = 'GET', url = 'https://developer.mozilla.org/'; xmlhttp.open(method, url, true); xmlhttp.onload = function () { // Do something with the retrieved data ( found in xmlhttp.response ) }; xmlhttp.send();
Specifications
Specification | Status | Comment |
---|---|---|
XMLHttpRequest | Living Standard | WHATWG living standard |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
onload | Chrome Full support Yes | Edge Full support ≤18 | Firefox Full support Yes | IE Full support 9 | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support Yes | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support