Barcode.ean8 constructor

Barcode.ean8(
  1. List barcodeData
)

JAN8 (EAN8)

k = 7, 8 d = '0' – '9'

Implementation

Barcode.ean8(List<dynamic> barcodeData) {
  final k = barcodeData.length;
  if (![7, 8].contains(k)) {
    throw Exception('Barcode: Wrong data range');
  }

  final numeric = RegExp(r'^[0-9]$');
  final bool isDataValid =
      barcodeData.every((dynamic d) => numeric.hasMatch(d.toString()));
  if (!isDataValid) {
    throw Exception('Barcode: Data is not valid');
  }

  _type = BarcodeType.ean8;
  _data = _convertData(barcodeData);
}