30-seconds-of-code/snippets/palindrome.md

palindrome

Returns true if the given string is a palindrome, false otherwise.

Convert string toLowerCase() and use replace() to remove non-alphanumeric characters from it. Then, split('') into individual characters, reverse(), join('') and compare to the original, unreversed string, after converting it tolowerCase().

const palindrome = str => {
  const s = str.toLowerCase().replace(/[\W_]/g, '');
  return s === s.split('').reverse().join('');
};

palindrome('taco cat') // true