init method

void init(
  1. Map<String, String> _placardM
)

Usage not used NOTE: it is MM This is called: placardMM'FirstActor'

Implementation

void init(Map<String, String> _placardM) {
  print(' ***************  affair class-init  *********');
  _placardM.forEach((k, v) => print('$k, $v'));
  //  howTo NULL  Map  OK  .toString();
  actor = _placardM['actor'].toString();
  sender = _placardM['sender'].toString();
  receiver = _placardM['receiver'].toString();
  cmd = _placardM['command'].toString();
  msg = _placardM['msg'].toString();
}