Recursive implementation to verify if a string is a palindrome

palindrome.js

let input1 = 'kayak';
let input2 = 'vay ak';
let input3 = 'kay ak';

function isPalindrome(data) {
    var charsToIgnore = /[.,'!?\- \"]/g;
    var cleanData = data.replace(charsToIgnore, '').toLowerCase();;
    
    if (cleanData.length === 1) return true;
    if (cleanData.length === 2) return false;

    if (cleanData.charAt(0) === cleanData.charAt(cleanData.length - 1)) {
        return isPalindrome(cleanData.slice(1, -1));
    }

    return false;
}


console.log(isPalindrome(input1));
console.log(isPalindrome(input2));
console.log(isPalindrome(input3));