export const combineStrings = (str1, str2) => str1 + str2;
export const reverseString = (str) => str.split('').reverse().join('');
export const capitalizeString = (str) => str.charAt(0).toUpperCase() + str.slice(1);
export const isPalindrome = (str) => {
  const reversed = str.split('').reverse().join('');
  return str === reversed;
}