Delimiter Added in case of Number format

example/main.dart

@@ -32,13 +32,22 @@ void main(List<String> arguments) {
   print(date5.format(gorkhaEarthQuake));
 
   heading('Nepali Number Format');
-  var currencyFormat = NepaliNumberFormat(
+  final numberFormat = NepaliNumberFormat(
     symbol: 'Rs.',
   );
-  var commaSeparated = NepaliNumberFormat(
+  final commaSeparated = NepaliNumberFormat(
     decimalDigits: 2,
   );
 
+  final numberFormatWithDefaultDelimiter = NepaliNumberFormat(
+    symbol: 'Rs.',
+    delimiter: ',',
+  );
+  final numberFormatWithEmptyDelimiter = NepaliNumberFormat(
+    symbol: 'Rs.',
+    delimiter: '',
+  );
+
   // Sets default language for nepali utilities to be Nepali.
   NepaliUtils(Language.nepali);
 
@@ -51,11 +60,15 @@ void main(List<String> arguments) {
     language: Language.nepali,
     isMonetory: true,
   );
-  print('123456 -> ${currencyFormat.format(123456)}');
+  print('123456 -> ${numberFormat.format(123456)}');
   print('123456789.6548 -> ${commaSeparated.format(123456789.6548)}');
   print('123456 -> ${inWords.format(123456)}');
   print('123456789.6548 -> ${currencyInWords.format(123456789.6548)}');
 
+  heading('Number Format With Delimiter');
+  print('12345 -> ${numberFormatWithDefaultDelimiter.format(12345)}');
+  print('12345 -> ${numberFormatWithEmptyDelimiter.format(12345)}');
+
   heading('Nepali Unicode');
   print(NepaliUnicode.convert(
       "sayau' thu''gaa fUlakaa haamii, euTai maalaa nepaalii"));

lib/src/nepali_number_format.dart

@@ -30,6 +30,15 @@ class NepaliNumberFormat {
   /// [isMonetory] is required to be set as true.
   final String? symbol;
 
+  /// The character used to separate place value in number.
+  ///
+  /// i.e. 2000(delimiter = ',') -> 2,000
+  ///      2000(delimiter = '') -> 2000
+  ///      2000(delimiter = '.') -> 2.000
+  ///
+  /// Default value is ','.
+  final String delimiter;
+
   /// If true, place the symbol on left side of the formatted number.
   ///
   /// Default is true.
@@ -57,6 +66,7 @@ class NepaliNumberFormat {
     this.decimalDigits,
     this.symbol,
     this.symbolOnLeft = true,
+    this.delimiter = ',',
     this.spaceBetweenAmountAndSymbol = true,
     this.includeDecimalIfZero = true,
     Language? language,
@@ -227,17 +237,17 @@ class NepaliNumberFormat {
     } else if (_number.length < 5) {
       var localizedNum = _isEnglish ? _number : NepaliUnicode.convert(_number);
       if (hideDecimal) {
-        return '${localizedNum[0]},${localizedNum.substring(1)}';
+        return '${localizedNum[0]}$delimiter${localizedNum.substring(1)}';
       }
-      return '${localizedNum[0]},${localizedNum.substring(1)}$_fractionalPart';
+      return '${localizedNum[0]}$delimiter${localizedNum.substring(1)}$_fractionalPart';
     } else {
       var paddedNumber = _number.length.isOdd ? _number : '0$_number';
       var formattedString = '';
       var digitMatcher = RegExp(r'\d{1,2}');
       var matches = digitMatcher.allMatches(paddedNumber);
       for (var i = 0; i < matches.length; i++) {
         if (i < matches.length - 2) {
-          formattedString += '${matches.elementAt(i).group(0)},';
+          formattedString += '${matches.elementAt(i).group(0)}$delimiter';
         } else {
           formattedString +=
               _number.substring(_number.length - 3, _number.length);

test/nepali_number_format_test.dart

@@ -124,6 +124,47 @@ void main() {
       ),
     );
   });
+
+  group('delimiter default tests:', () {
+    test(
+      'in english',
+      () => expect(NepaliNumberFormat().format(1234), '1,234'),
+    );
+    test(
+      'in nepali',
+      () => expect(
+        NepaliNumberFormat(language: Language.nepali).format(1234),
+        '१,२३४',
+      ),
+    );
+  });
+
+  group('delimiter tests:', () {
+    test(
+      'using empty delimiter in English',
+      () => expect(NepaliNumberFormat(delimiter: '').format(1234), '1234'),
+    );
+    test(
+      'using empty delimiter in English',
+      () => expect(
+        NepaliNumberFormat(language: Language.nepali, delimiter: '')
+            .format(1234),
+        '१२३४',
+      ),
+    );
+    test(
+      'using . delimiter in English',
+      () => expect(NepaliNumberFormat(delimiter: '.').format(1234), '1.234'),
+    );
+    test(
+      'using . delimiter in Nepali',
+      () => expect(
+        NepaliNumberFormat(language: Language.nepali, delimiter: '.')
+            .format(1234),
+        '१.२३४',
+      ),
+    );
+  });
 }
 
 String _format(number) => NepaliNumberFormat().format(number);