import 'package:intl/intl.dart'; extension FikoDouble on double { String toParaBirimi({String locale = 'tr_TR', String symbol = '₺', String pattern = "#,##0.00"}) { // final NumberFormat currencyFormat = NumberFormat.currency(locale: locale, symbol: symbol); final NumberFormat customFormat = NumberFormat(pattern, 'tr_TR'); final formattedAmount = customFormat.format(this); return '$formattedAmount $symbol'; } }