FileSystemDirectoryEntry
The FileSystemDirectoryEntry interface of the File and Directory Entries API represents a directory in a file system. It provides methods which make it possible to access and manipulate the files in a directory, as well as to access the entries within the directory.
Basic concepts
You can create a new directory by calling getDirectory(). If you want to create subdirectories, create each child directory in sequence. If you try creating a directory using a full path that includes parent directories that do not exist yet, an error is returned. So create the hierarchy by recursively adding a new path after creating the parent directory.
Example
In the following code snippet, we create a directory called "Documents."
// Taking care of the browser-specific prefixes. window.requestFileSystem = window.requestFileSystem || window.webkitRequestFileSystem; window.directoryEntry = window.directoryEntry || window.webkitDirectoryEntry; ... function onFs(fs){ fs.root.getDirectory('Documents', {create:true}, function(directoryEntry){ //directoryEntry.isFile === false //directoryEntry.isDirectory === true //directoryEntry.name === 'Documents' //directoryEntry.fullPath === '/Documents' }, onError); } // Opening a file system with temporary storage window.requestFileSystem(TEMPORARY, 1024*1024 /*1MB*/, onFs, onError);
Properties
This interface has no properties of its own, but inherits properties from its parent interface, FileSystemEntry.
Methods
This interface inherits methods from its parent interface, FileSystemEntry.
- createReader()
-  Creates a FileSystemDirectoryReaderobject which can be used to read the entries in this directory.
- getDirectory()
-  Returns a FileSystemDirectoryEntryobject representing a directory located at a given path, relative to the directory on which the method is called.
- getFile()
-  Returns a FileSystemFileEntryobject representing a file located within the directory's hierarchy, given a path relative to the directory on which the method is called.
Specifications
| Specification | 
|---|
| File and Directory Entries API # api-directoryentry | 
Browser compatibility
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
| FileSystemDirectoryEntry | 8 | 79 | 50 | No | Yes | 11.1 | ≤37 | 18 | 50 | No | 11.3 | 1.0 | 
| createReader | 13 | 79 | 50 | No | No | 11.1 | ≤37 | 18 | 50 | No | 11.3 | 1.0 | 
| getDirectory | 8 | 79 | 50 | No | No | 11.1 | ≤37 | 18 | 50 | No | 11.3 | 1.0 | 
| getFile | 8 | 79 | 50 | No | No | 11.1 | ≤37 | 18 | 50 | No | 11.3 | 1.0 | 
| removeRecursively | 8 | 79 | 50-52 While the  removeRecursively()method existed, it immediately called the error callback withNS_ERROR_DOM_SECURITY_ERR. | No | No | No | ≤37 | 18 | 50-52 While the  removeRecursively()method existed, it immediately called the error callback withNS_ERROR_DOM_SECURITY_ERR. | No | No | 1.0 | 
See also
- File and Directory Entries API
- Introduction to the File System API
- FileSystemDirectoryReader
- FileSystemEntry
- FileSystemFileEntry
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    https://developer.mozilla.org/en-US/docs/Web/API/FileSystemDirectoryEntry