Chuyển chuỗi sang mã nhị phân

String to Binary

// http://www.midnight-coding.com/2014/05/convert-string-to-binary-to-string.html
function stringToBinary(stringValue) {
    return stringValue.replace(/.{1}/g, function (matchedString) {
        var binString = matchedString.charCodeAt(0).toString(2);
        return '00000000'.substring(0, 8 - binString.length) + binString;
    });
}