Given a string, find the longest palindrome (JavaScript)

longest_palindrome.md

Find the longest palindrome (JavaScript)

This is my solution to the longest palindrome kata on Code Wars.

Solution

  function reverseString(st) {
    return st.split('').reverse().join('')
  }

function longestPalindrome(s) {
  const str = s.toLowerCase()

  let palindrome = ''

  for (let i = 0; i < str.length; i++) {
    for (let j = i + 1; j <= str.length; j++) {
      const currentWord = str.substring(i, j)
      const reversedWord = reverseString(currentWord)
      if (currentWord === reversedWord && currentWord.length > palindrome.length) {
        palindrome = currentWord
      }
    }
  }
  return palindrome.length
}