getLength method Null safety

int getLength(
  1. dynamic productList
)

Returns the number of barcodes quickly but without product check.

Implementation

int getLength(final ProductList productList) {
  final _BarcodeList? list = _get(productList);
  if (list == null || list.barcodes.isEmpty) {
    return 0;
  }
  return list.barcodes.length;
}