feat: support numeric separators

.changeset/rotten-falcons-camp.md

@@ -0,0 +1,5 @@
+---
+'natural-orderby': minor
+---
+
+feat: support numeric separators

src/utils/__tests__/baseCompare.test.ts

@@ -252,6 +252,15 @@ describe('baseCompare()', () => {
         );
       });
     });
+    describe('numbers with separators', () => {
+      const origArray = ['100', '20', '10_000', '5_000', '2_000_000'];
+      const sortArray = ['20', '100', '5_000', '10_000', '2_000_000'];
+      it(`${origArray.toString()} should be returned as ${sortArray.toString()}`, () => {
+        expect(origArray.sort(baseCompare({ order: 'asc' }))).toEqual(
+          sortArray,
+        );
+      });
+    });
     describe('alphanumerics containing very large numbers', () => {
       const origArray = [
         'MySnmp 1234567891234567891234567891234567891234567891234567891234567891234567891234567891234567891234567891234567891234567891234567891234567',

src/utils/__tests__/parseNumber.test.ts

@@ -31,4 +31,9 @@ describe('parseNumber()', () => {
     const expected = undefined;
     expect(parseNumber(value)).toEqual(expected);
   });
+  it('should return 1000000 for number with numeric separators', () => {
+    const value = '1_000_000';
+    const expected = 1000000;
+    expect(parseNumber(value)).toEqual(expected);
+  });
 });

src/utils/parseNumber.ts

@@ -2,7 +2,7 @@ import type { ParsedNumber } from '../types';
 
 export const parseNumber = (value: string): ParsedNumber | void => {
   if (value.length !== 0) {
-    const parsedNumber = Number(value);
+    const parsedNumber = Number(value.replace(/_/g, ''));
     if (!Number.isNaN(parsedNumber)) {
       return parsedNumber;
     }