The FileEntrySync
interface of the File System API represents a file in a file system. It lets you write content to a file.
Inherits from: EntrySync
About this document
This document was last updated on March 2, 2012 and follows the W3C Specifications (Working Draft) drafted on April 19, 2011.
Basic concepts
To write content to file, create a FileWriter object by calling createWriter()
.
Method overview
FileWriterSync createWriter () raises (FileException); |
File file () raises (FileException); |
Methods
createWriter()
Creates a new FileWriter
associated with the file that the FileEntry
represents.
void createWriter ( ) raises (FileException);
Parameter
None.
Returns
FileWriterSync
Exceptions
This method can raise a FileException 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INVALID_STATE_ERR | The file is no longer valid for some reason other than it having been deleted.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.
void file ( ) raises (FileException);
Parameter
None.
Returns
File
Exceptions
This method can raise a FileException 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INVALID_STATE_ERR | The file is no longer valid for some reason other than it having been deleted. |
Browser compatibility
{{ CompatibilityTable() }}
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support | 13{{ property_prefix("webkit") }} | {{ CompatNo() }} | {{ CompatNo() }} | {{ CompatNo() }} | {{ CompatNo() }} |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | {{ CompatNo() }} | 0.16 {{ property_prefix("webkit") }} | {{ CompatNo() }} | {{ CompatNo() }} | {{ CompatNo() }} | {{ CompatNo() }} |
See also
Specification:{{ spec("https://dev.w3.org/2009/dap/file-system/pub/FileSystem/", "File API: Directories and System Specification", "WD") }}
Reference: File System API
Introduction: Basic Concepts About the File System API