Added temporary placeholder test

palindrome.test.ts

@@ -0,0 +1,13 @@
+import { isPalindrome } from './palindrome';
+
+describe('isPalindrome', () => {
+    it('should return true for palindromic strings', () => {
+        expect(isPalindrome('radar')).toBe(true);
+        expect(isPalindrome('A man, a plan, a canal, Panama!')).toBe(true);
+    });
+
+    it('should return false for non-palindromic strings', () => {
+        expect(isPalindrome('hello')).toBe(false);
+        expect(isPalindrome('OpenAI')).toBe(false);
+    });
+});

palindrome.ts

@@ -0,0 +1,5 @@
+export const isPalindrome = (s: string): boolean => {
+    const cleanedString = s.replace(/[^A-Za-z0-9]/g, '').toLowerCase();
+    const reversedString = cleanedString.split('').reverse().join('');
+    return cleanedString === reversedString;
+};