flutter NumberFormat dev code example
Example: flutter intl currency
import 'package:intl/intl.dart';
void currency() {
Locale locale = Localizations.localeOf(context);
var format = NumberFormat.simpleCurrency(locale: locale.toString());
print("CURRENCY SYMBOL ${format.currencySymbol}"); // $
print("CURRENCY NAME ${format.currencyName}"); // USD
}