stringbuffer in flutter properties code example

Example: stringbuffer in dart

void main() {    StringBuffer sb = new StringBuffer('Website: ');      sb.write('woolha');    sb.writeCharCode(46);    sb.writeln('com');    sb.write('Tags: ');    sb.writeAll({'Dart', 'Flutter'}, ',');      print('length: ${sb.length}');    print('isEmpty: ${sb.isEmpty}');    print('isNotEmpty: ${sb.isNotEmpty}');    print('----------\n${sb.toString()}\n----------');      print('CLEAR THE BUFFER');    sb.clear();      print('length: ${sb.length}');    print('isEmpty: ${sb.isEmpty}');    print('isNotEmpty: ${sb.isNotEmpty}');    print('----------\n${sb.toString()}\n----------');  }