FileSystem
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.
The File and Directory Entries API interface FileSystem is used to represent a file system. Each object is passed to the success callback when requestFileSystem() is called.
Because this is a non-standard API, whose specification is not currently on a standards track, it's important to keep in mind that not all browsers implement it, and those that do may implement only small portions of it. Check the Browser compatibility section for details.
Basic concepts
There are two ways to get access to a FileSystem object: you can directly ask for one representing a sandboxed file system created just for your web app directly by calling window.requestFileSystem(). If that call is successful, it executes a callback handler, which receives as a parameter a FileSystem object describing the file system.
The FileSystem object is your gateway to the entire API and you will use it a lot. So once you have a reference, it handy in a variable (either global or in an appropriate object property).
Properties
FileSystem.nameRead only- A
DOMStringrepresenting the file system's name. This name is unique among the entire list of exposed file systems. FileSystem.rootRead only- A
FileSystemDirectoryEntryobject which represents the file system's root directory. Through this object, you can gain access to all files and directories in the file system.
Specifications
| Specification | Status | Comment |
|---|---|---|
| File and Directory Entries API | Editor's Draft | Draft of proposed API |
This API has no official W3C or WHATWG specification.
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 13webkit | 50 (50) | No support | No support | No support |
| Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | No support | 0.16webkit | 50.0 (50) | No support | No support | No support |
See also
- File and Directory Entries API
- Introduction to the File System API
FileSystemEntry,FileSystemFileEntry, andFileSystemDirectoryEntry
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/filesystem