toOrdinal method
Converts the number to its ordinal representation as either a number with a suffix (e.g., "1st") or as a word (e.g., "first").
Implementation
String toOrdinal({bool asWord = false, bool includeAnd = false}) {
final number = toInt();
// Return 'zeroth' or '0th' based on asWord
if (number == 0) return asWord ? 'zeroth' : '0th';
// Handling negative numbers
if (number < 0) throw ArgumentError('Negative numbers are not supported');
return asWord
? _dynamicOrdinalWord(number, includeAnd: includeAnd)
: _asOrdinalSuffixWithNumber();
}