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."
js
// 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 },
(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);
Instance properties
This interface has no properties of its own, but inherits properties from its parent interface, FileSystemEntry
.
Instance methods
This interface inherits methods from its parent interface, FileSystemEntry
.
createReader()
-
Creates a
FileSystemDirectoryReader
object which can be used to read the entries in this directory. getDirectory()
-
Returns a
FileSystemDirectoryEntry
object representing a directory located at a given path, relative to the directory on which the method is called. getFile()
-
Returns a
FileSystemFileEntry
object 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
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