See the documentation of the delete() method in the parent class for the definition of how this method must behave. This implements the requirements specified there for a file system representing the user's Dropbox, as defined at the documentation for this class.

See the documentation of the has() method in the parent class for the definition of how this method must behave. This implements the requirements specified there for a file system representing the user's Dropbox, as defined at the documentation for this class.

Because this is a flat file system, any file object with a nonempty path member will not exist, regardless of its filename, and will therefore result in a false value being resolved from the promise.

See the documentation of the list() method in the parent class for the definition of how this method must behave. It implements the requirements specified there for a file system based on the user's Dropbox, as defined at the documentation for this class.

See the documentation of the read() method in the parent class for the definition of how this method must behave. It implements the requirements specified there for a file system based on the user's Dropbox, as defined at the documentation for this class.

Any file object that does not have a .filename member (including the case where the parameter is omitted) will be interpreted as a folder (and if the .path member is omitted, it counts as the root).

See the documentation of the write() method in the parent class for the definition of how this method must behave. This implements the requirements specified there for a file system representing the user's Dropbox, as defined at the documentation for this class.