FileExceptionobject represents error conditions that you might encounter while accessing the file system using the synchronous API. It extends the FileException interface described in File Writer and adds several new error codes.
FileSystemSyncobject represents a file system. It has two properties.
LocalFileSysteminterface of the File System API gives you access to a sandboxed file system. The methods are implemented by window and worker objects.
LocalFileSystemSyncinterface of the File System API gives you access to a sandboxed file system. It is intended to be used with WebWorkers. The methods are implemented by worker objects.
FileSystemEntryinterface of the File and Directory Entries API represents a single in a file system. The entry can be a file or a directory (directories are represented by the
DirectoryEntryinterface. It includes methods for working with files—including copying, moving, removing, and reading files—as well as information about a file it points to—including the file name and its path from the root to the entry.