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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

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support ? ? ? ? ? ?
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support ? ? ? ? ? ? ?

Document Tags and Contributors

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