createSync abstract method
Synchronously creates the file.
If recursive is false, the default, the file is created only if all directories in its path already exist. If recursive is true, all non-existing parent paths are created first.
If exclusive is true and to-be-created file already exists, this operation completes the future with a FileSystemException.
If exclusive is false, existing files are left untouched by createSync. Calling createSync on an existing file still might fail if there are restrictive permissions on the file.
Throws a FileSystemException if the operation fails.
Implementation
void createSync({bool recursive = false, bool exclusive = false});
© 2012 the Dart project authors
Licensed under the BSD 3-Clause "New" or "Revised" License.
https://api.dart.dev/stable/2.19.6/dart-io/File/createSync.html