125. Valid Palindrome

validPalindrome.ts

function isPalindrome(s: string): boolean {
    const string = s.replace(/[^A-Za-z0-9]/g, '').toLowerCase()
    let left = 0
    let right = string.length - 1

    while (right > left) {
        if (string[left] !== string[right]) return false
        right--
        left++
    }
    return true
};