String Convert([int digits, ReadType read_type = ReadType.Default, String delimiter = ',', SpacingType spacing_type = SpacingType.Right ])

Returns the string representation of the integer passed i.e passing the digits, read_type, delimiter and or spacing_type as arguments.

Note: When delimiter is an empty string i.e ' ', then spacing type is not used. And read_type of ReadType.Default does not make use of delimiter and spacing_type arguments.

print(NumberToWord.Convert(1994, ReadType.Double, ',', SpacingType.Right); // nineteen, ninety four

Source

static String Convert([int digits, ReadType read_type = ReadType.Default, String delimiter = ',', SpacingType spacing_type = SpacingType.Right]) {

  var digitsString = digits.toString();
  var wordings = '';

  delimiter = _ResolveDelimiter(delimiter, spacing_type);

  if (read_type == ReadType.Default) {
    return NumberToWord._GetAmountInStr(digits);
  } // end if
  else if (read_type == ReadType.Single) {
    for (var i = 0; i < digitsString.length; i++) {
      wordings += ((i == 0 ? '':delimiter) + NumberToWord._GetAmountInStr(int.parse(digitsString[i])));
    } // end for

    return wordings;
  } // end else if
  else if (read_type == ReadType.Double) {
    var stopIndex = 0;

    for (var i = 0; i < digitsString.length - 2; i+=2) {
      wordings += ((i == 0 ? '':delimiter) + NumberToWord._GetAmountInStr(int.parse(digitsString.substring(i, i+2))));
      stopIndex = i + 2;
    } // end for

    wordings += ((wordings.isEmpty ? '':delimiter) + NumberToWord._GetAmountInStr(int.parse(digitsString.substring(stopIndex))));

    return wordings;
  } // end else if

  throw FormatException('ReadType is unknown');
}