addCommas function

String addCommas(
  1. Object number
)

Takes an integer or string and add commas as separator NOTE: it converts Fa digits to En digits

Implementation

String addCommas(Object number) {
  if (number is! int && number is! String && number is! double) {
    throw Exception(exception);
  }
  final numberStr = number.runtimeType is String
      ? number as String //
      : number.toString();
  final enNumberStr =
      isPersian(numberStr) ? convertFaToEn(numberStr) : numberStr;
  final decimalNumber = enNumberStr.split('.');
  final integerPart = decimalNumber[0].replaceAllMapped(
    RegExp(addCommasRegExp),
    (matched) => '${matched[1]},',
  );
  String decimalPart;
  try {
    decimalPart = '.${decimalNumber[1]}';
  } on RangeError catch (_) {
    decimalPart = '';
  }
  return integerPart + decimalPart;
}