Added check_if_palindrome function

src/utils/check_if_palindrome.js

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+/**
+ * Author: Nicholas Skelton
+ * Date: 3 June 2026
+ * File: check_if_palindrome.js
+ * Description: This script checks to see if a string is a palindrome
+ */
+'use strict';
+
+function isPalindrome(str) {
+    // Convert string to lowercase and remove all non-alphanumeric characters
+  const cleaned = str.toLowerCase().replace(/[^a-z0-9]/g, '');
+    // Splits string into an array of individual characters, reverses it, and rejoins the string
+  const reversed = cleaned.split('').reverse().join('');
+    // Compares the cleaned string to the reversed 
+  return cleaned === reversed;
+}
+
+module.exports = { isPalindrome }; // Export the factorial function for use in other scripts

test/utils/check_if_palindrome.spec.js

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+/**
+ * Author: Nicholas Skelton
+ * Date: 3 June 2026
+ * File: check_if_palindrome.spec.js
+ * Description: This script tests the isPalindrome function.
+ */
+'use strict';
+
+const { isPalindrome } = require('../../src/utils/check_if_palindrome'); // Import the isPalindrome function from the palindrome.js file
+
+// The describe() function is a test suite that contains one or more tests
+describe('palindrome.js', () => {
+
+  // The it() function is a test spec that contains one or more expectations
+  it('should return true for a valid palindrome', () => {
+    const result = isPalindrome('racecar'); // Call the isPalindrome function with the value of racecar
+    expect(result).toBe(true); // The expected result is true
+  });
+
+  // The it() function is a test spec that contains one or more expectations
+  it('should return false for a non-palindrome string', () => {
+    const result = isPalindrome('hello'); // Call the isPalindrome function with the value of hello
+    expect(result).toBe(false); // The expected result is false
+  });
+
+  // The it() function is a test spec that contains one or more expectations
+  it('should ignore spaces, punctuation, and capitalization', () => {
+    const result = isPalindrome('A man, a plan, a canal: Panama'); // Call the isPalindrome function with a formatted palindrome
+    expect(result).toBe(true); // The expected result is true
+  });
+
+});