computeCheckSum function

dynamic computeCheckSum(dynamic bytes)

Implementation

function computeCheckSum(bytes) {
    while (bytes.length % 4 !== 0) {
        bytes.push(0);
    }

    let sum = 0;
    for (let i = 0; i < bytes.length; i += 4) {
        sum += (bytes[i] << 24) +
            (bytes[i + 1] << 16) +
            (bytes[i + 2] << 8) +
            (bytes[i + 3]);
    }

    sum %= Math.pow(2, 32);
    return sum;
}