DateFormat for Dart

DateFormat.dart

void main() {  
  var date = new DateTime.now();
  print(formatDate(date));
}
String formatDate(DateTime date){
  return '${date.year}-'
    '${fixInt2Str(date.month)}-'
    '${fixInt2Str(date.day)} '
    '${fixInt2Str(date.hour)}:'
    '${fixInt2Str(date.minute)}:'
    '${fixInt2Str(date.second)}.'
    '${fixInt2Str(date.millisecond,fix: 3)}';
}

String fixInt2Str(int n,{fix = 2}){
  String res = n.toString();
  fix = fix - res.length;
  for (;fix >0;fix--){
    res = '0$res';
  }
  return res;
}