isPalindrome.js

const isPalindrome = (string) => {
    
  const reverse = string.split('').reverse().join('');
  const isPalindrome = (string === reverse);
    
  const result = isPalindrome ? `${string} is a Palindrome` : `${string} is not a Palindrome`;
    
  return result;
  
};

Perhaps .toLowerCase() would be useful here as well.

const isPalindrome = (string) => {

const reverse = string.toLowerCase().split('').reverse().join('');
const isPalindrome = (string === reverse);

const result = isPalindrome ? ${string} is a Palindrome : ${string} is not a Palindrome;

return result;

};

isPalindrome("aAbcc")