FileEntrySync
Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.
Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
The FileEntrySync interface represents a file in a file system. It lets you write content to a file.
Warning: This interface is deprecated and is no more on the standard track. Do not use it anymore. Use the File and Directory Entries API instead.
Basic concepts
To write content to file, create a FileWriter object by calling createWriter().
Method overview
FileWriterSync createWriter ();
|
File file ();
|
Instance methods
createWriter()
Creates a new FileWriter associated with the file that the FileEntry represents.
createWriter()
Parameters
None.
Return value
A FileWriterSync object.
Exceptions
This method can raise a DOMException with the following codes:
| Exception | Description |
|---|---|
NOT_FOUND_ERR |
The file does not exist. |
INVALID_STATE_ERR |
The file is no longer valid for some reason other than it having been deleted. |
file()
Returns a File that represents the current state of the file that this FileEntry represents.
file()
Parameters
None.
Return value
A File object.
Exceptions
This method can raise a DOMException with the following codes:
| Exception | Description |
|---|---|
NOT_FOUND_ERR |
The file does not exist. |
INVALID_STATE_ERR |
The file is no longer valid for some reason other than it having been deleted. |
Specifications
This feature is not part of any specification anymore. It is no longer on track to become a standard.
Browser compatibility
| desktop | mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FileEntrySync
|
|
|
|
|
|
|
|
|
|
|
|
|
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- No support
- No support
- Non-standard. Check cross-browser support before using.
- Deprecated. Not for use in new websites.
- Requires a vendor prefix or different name for use.