poitinha

.js

function removeSpecialChars(str) {
  return str.replace(/ /gi,"").replace(/[_\W]/gi,"").toLowerCase();
}
function reverseString(str) {
  return str.split('').reverse().join('');
}

function palindrome(str) {
  var cleanedString = removeSpecialChars(str); 
  var reverseCleanedString = reverseString(cleanedString);

  return cleanedString === reverseCleanedString;
}
palindrome("_eye");