FieldPath constructor Null safety

FieldPath(
  1. {Iterable<String>? fieldName}
)

Implementation

factory FieldPath({
  $core.Iterable<$core.String>? fieldName,
}) {
  final _result = create();
  if (fieldName != null) {
    _result.fieldName.addAll(fieldName);
  }
  return _result;
}