isDirectory method
- String path
Checks if type(path) returns io.FileSystemEntityType.DIRECTORY.
Implementation
Future<bool> isDirectory(String path) async =>
    await type(path) == io.FileSystemEntityType.directory;Checks if type(path) returns io.FileSystemEntityType.DIRECTORY.
Future<bool> isDirectory(String path) async =>
    await type(path) == io.FileSystemEntityType.directory;