project euler 4

let s = 0;
function palindrome(s) {
    return (s + "").split("").toReversed().join("") == s;
}
for (let i = 100; i <= 999; i++) {
    for (let j = 100; j <= 999; j++) {
        if (palindrome(i * j)) s = Math.max(s, i * j);
    }
}
console.log(s);