The number of code units comprising the current rune.
Returns zero if there is no current rune (current is null).
int get currentSize => _nextPosition - _position;
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-core/RuneIterator/currentSize.html