interface ProgressEvent

ProgressEvent provides information about the progress of a network request.

ProgressEvent objects are passed to progress-related event handlers such as XMLHttpRequest.onprogress and XMLHttpRequest.onerror. They contain information about the amount of data that has been loaded and the total amount expected.

Example

var req = new XMLHttpRequest();
req.onprogress = function (event) {
  post("loaded: " + event.loaded + " of " + event.total + "\n");
};

Index

Properties

• lengthComputable
• loaded
• total

lengthComputable boolean read-only

Whether the total size of the transfer is known

loaded number read-only

The number of bytes that have been loaded

total number read-only

The total number of bytes expected to be loaded