XMLHttpRequestEventTarget.onprogress

The XMLHttpRequestEventTarget.onprogress is the function called periodically with information when an XMLHttpRequest before success completely .

Syntax

XMLHttpRequest.onprogress = callback;

Values

  • callback is the function to be called periodically before the request is completed.

Event

  • event.loaded  the amount of data currently transfered.
  • event.total  the total amount of data to be transferred.
XMLHttpRequest.onprogress = function (event) {
  event.loaded;
  event.total;
};

Example

var xmlhttp = new XMLHttpRequest(),
  method = 'GET',
  url = 'https://developer.mozilla.org/';

xmlhttp.open(method, url, true);
xmlhttp.onprogress = function () {
  //do something 
};
xmlhttp.send();

Specifications

Specification Status Comment
XMLHttpRequest Living Standard WHATWG living standard

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic supportChrome ? Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android ? Chrome Android ? Edge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?

Legend

Compatibility unknown  
Compatibility unknown

Document Tags and Contributors

Contributors to this page: ExE-Boss, sheeldotme, yan, erikadoyle, nekjine, donnapep, teoli, Taoja
Last updated by: ExE-Boss,