DeviceStorage.freeSpace()

Summary

The freeSpace method is used to get the amount of free space usable by the storage area.

The request's result is a number representing the amount of free space expressed in Bytes.

Syntax

var instanceOfDOMRequest = instanceOfDeviceStorage.freeSpace();

Returns

It returns a DOMRequest object to handle the success or error of the operation.

Example

var sdcard = navigator.getDeviceStorage("sdcard");
var request = sdcard.freeSpace();
request.onsuccess = function () {
  // The result is expressed in bytes, let's turn it into Gigabytes
  var size = this.result / Math.pow(10,9);
  console.log("You have " + size.toFixed(2) + "GB of free space on your SDCard.");
}
request.onerror = function () {
  console.warn("Unable to get the free space available for the SDCard: " + this.error);
}

Specification

Not part of any specification.

See also

• DeviceStorage
• DOMRequest
• Device Storage API