Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
In the File System API, a FileSystemSync
object represents a file system. It has two properties.
About this document
This document was last updated on March 2, 2012 and follows the W3C Specifications (Working Draft) drafted on April 19, 2011.
The specification is abandonned for the moment, failing to get significant traction.
Basic concepts
The FileSystemSync
object is your gateway to the entire API and you will use it a lot. So once you have a reference, cache the object in a global variable or class property.
Attributes
Attribute | Type | Description |
---|---|---|
name |
readonly DOMString |
Name of the file system. The name must be unique across the list of exposed file systems. |
root |
readonly DirectoryEntry |
The root directory of the file system. |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
FileSystemSync | Chrome
Full support
13
| Edge
Full support
≤79
| Firefox No support No | IE No support No | Opera
Full support
15
| Safari
Full support
6
| WebView Android
Full support
≤37
| Chrome Android
Full support
18
| Firefox Android No support No | Opera Android
Full support
14
| Safari iOS
Full support
6
| Samsung Internet Android
Full support
1.0
|
name | Chrome Full support 13 | Edge Full support ≤79 | Firefox No support No | IE No support No | Opera Full support 15 | Safari Full support 6 | WebView Android Full support ≤37 | Chrome Android Full support 18 | Firefox Android No support No | Opera Android Full support 14 | Safari iOS Full support 6 | Samsung Internet Android Full support 1.0 |
root | Chrome Full support 13 | Edge Full support ≤79 | Firefox No support No | IE No support No | Opera Full support 15 | Safari Full support 6 | WebView Android Full support ≤37 | Chrome Android Full support 18 | Firefox Android No support No | Opera Android Full support 14 | Safari iOS Full support 6 | Samsung Internet Android Full support 1.0 |
Legend
- Full support
- Full support
- No support
- No support
- Non-standard. Expect poor cross-browser support.
- Non-standard. Expect poor cross-browser support.
- Requires a vendor prefix or different name for use.
- Requires a vendor prefix or different name for use.
See also
Specification:File API: Directories and System SpecificationWD
Reference: File System API
Introduction: Introduction to the File and Directory Entries API