feat: add reverseText() utility function

src/tests/transformations/reverseText.test.ts

@@ -0,0 +1,18 @@
+import test from 'node:test';
+import { reverseText } from '../../transformations/reverseText';
+
+test('reverseText() should reverse the string correctly', () => {
+  expect(reverseText('Hello World')).toBe('dlroW olleH');
+  expect(reverseText('Stringzy')).toBe('yzgnirtS');
+  expect(reverseText('')).toBe('');
+});
+
+function expect(actual: string) {
+  return {
+    toBe(expected: string) {
+      if (actual !== expected) {
+        throw new Error(`Expected '${expected}' but got '${actual}'`);
+      }
+    },
+  };
+}

src/transformations/reverseText.ts

@@ -0,0 +1,9 @@
+/**
+ * Reverses the given string character by character
+ * @param str Input string
+ * @returns Reversed string
+ */
+export function reverseText(str: string): string {
+  if (!str) return '';
+  return str.split('').reverse().join('');
+}