JS: Palindrome Function

palindrome.js

// Takes a single string and returns a boolean whether it is the same forwards or backwards
// EXAMPLE:
//     "oscar"           -> false
//     "aaaa"            -> true
//     "Racecar"         -> true
//     "Madam, I'm Adam" -> true

// Args: string
// Return: boolean
const palindrome = str => {
    const clean = str.toLowerCase().replace(/( )|[.,'\/#!$%\^&\*;:{}=\-_`~\(\)]/g, "");
    const final = clean.split('').reverse().join('');    
    return clean === final; 
};