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B2G OS
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  2. Archive of obsolete content
  3. B2G OS
  4. B2G OS APIs
  5. DeviceStorage
  6. DeviceStorage.enumerate()

DeviceStorage.enumerate()

In This Article
  1. Summary
  2. Syntax
    1. Parameters
    2. Returns
  3. Example
  4. Specification
  5. See also

This API is available on Firefox OS for privileged or certified applications only.

Summary

The enumerate method is used to iterate through the files of a given storage area.

If the request is successful, the request's result is a File object containing the data of the current files stored on the device.

Syntax

var instanceOfDOMCursor = instanceOfDeviceStorage.enumerate([path][, options]);

Parameters

path Optional
A string representing a path directory within the storage area to search for files within. Note that you should not include a leading slash on the path you specify.
options Optional
An object with the property since which is a Date object. Files older than that date will be ignored during the iteration process.

Returns

It returns a DOMCursor object to handle the success or error of the iteration.

Example

var sdcard = navigator.getDeviceStorage('sdcard');
// Let's retrieve files from last week.
var param = {
  since: new Date((+new Date()) - 7*24*60*60*1000)
}
var cursor = sdcard.enumerate(param);
cursor.onsuccess = function () {
  if (this.result) {
    var file = this.result;
    console.log("File updated on: " + file.lastModifiedDate);
    // Once we found a file we check if there are other results
    // Then we move to the next result, which calls the cursor
    // success possibly with the next file as result.
    this.continue();
  }
}

Specification

Not part of any specification.

See also

  • DeviceStorage
  • FileHandle
  • DOMCursor
  • Device Storage API
  • FileHandle API

Document Tags and Contributors

Tags: 
  • API
  • Device Storage
  • Firefox OS
  • Method
  • Non Standard
  • Reference
  • Référence
  • WebAPI
 Contributors to this page: chrisdavidmills, fscholz, ladybenko, kscarfone, NickDesaulniers, crh, Jeremie
 Last updated by: chrisdavidmills, Feb 27, 2017, 2:08:10 AM
See also
  1. Device Storage API
  2. Archive
  3. Events
    1. change
  4. Related pages for Device Storage API
    1. DeviceStorage
    2. DeviceStorageChangeEvent
    3. Navigator.getDeviceStorage()