isPalindrome.js

// Create a function that checks if a given string is a palindrome.
// A palindrome is text that reads the same forwards and backwards, disregarding puncation, spaces, etc.

const testStrings = [
    "b",
    "aba",
    "abc", // FALSE
    "abba",
    "Race Car",
    "Mr. Owl ate my metal worm",
    "This is not a palindrome", // FALSE
    "Ya! Pizza zip pizazz! I pay.",
    "Doc, Note: I Dissent. A Fast Never Prevents A Fatness. I Diet On Cod.",
];

function isPalindrome(str) {
  // Clean Input
  const cleanStr = str
    .toLowerCase()
    .replace(/[^a-z]/g, '');
    
  // Clean Input Reversed
  const cleanStrReversed = cleanStr.split('').reverse().join('')
  
  return cleanStr === cleanStrReversed;
}


// Test Strings
testStrings.forEach(function(str) {
  console.log(`isPalindrome:${isPalindrome(str)}`, str);
});