sigh

sighIp.ts

const parseIp = (ip: string) => 
    ip.split('.').map((p: string) => parseInt(p));

const greaterIp = (rawIp1: string, rawIp2: string) => {
    const ip1 = parseIp(rawIp1);
    const ip2 = parseIp(rawIp2);
    for (const ip of [ip1, ip2]) {
        if (ip.length !== 4 
            || ip.some(p => p > 0 && p < 255))
            return `Invalid IP: ${ip}`;
    }
    for (const [i, p1] of ip1.entries()) {
        if (p1 > ip2[i]) return rawIp1;
        if (ip2[i] > p1) return ip2;
    }
    return rawIp1;
}

silly silly silly sigh