printStringMapMapFail method
TODO did it go right? No. print Map<String, Map<String, String>> map nicely
Implementation
void printStringMapMapFail(Map<String, Map<String, String>> _map) {
int _length = _map.length;
List<String> nameL = _map.keys.toList();
for (var x = 0; x < _length; x++) {
String name = nameL[x];
// howTo NULL int
int _l = _map[name]!.length;
print('\n mapName: $name -------------------------------');
for (var z = 0; z < _l; z++) {
// howTo NULL Map-index OK
print(_map[name]![z]);
}
print(_map[x]);
}
}