extractTrackingNumber method

String? extractTrackingNumber(
  1. String text
)

Implementation

String? extractTrackingNumber(String text) {
  RegExp numberRegExp = RegExp(r'\b(\d{11})\b');

  RegExpMatch? match = numberRegExp.firstMatch(text);
  if (match != null) {
    String number = match.group(0)!;
    print(number); // Output: 12802812842
    return number;
  }
  return null;
}