buffer from base64
const b64string = /* whatever */;
const buf = Buffer.from(b64string, 'base64');buffer from base64
const b64string = /* whatever */;
const buf = Buffer.from(b64string, 'base64');write a program to decrypt the following base64 encoded text
import base64
decoded_data = base64.b64decode("RW5jb2RlIHRoaXMgdGV4dA==")
print("decoded text is ")
print(decoded_data)Int64
ulong ulNumber = 163245617943825;
try {
long number1 = (long) ulNumber;
Console.WriteLine(number1);
}
catch (OverflowException) {
Console.WriteLine("{0} is out of range of an Int64.", ulNumber);
}
double dbl2 = 35901.997;
try {
long number2 = (long) dbl2;
Console.WriteLine(number2);
}
catch (OverflowException) {
Console.WriteLine("{0} is out of range of an Int64.", dbl2);
}
BigInteger bigNumber = (BigInteger) 1.63201978555e30;
try {
long number3 = (long) bigNumber;
Console.WriteLine(number3);
}
catch (OverflowException) {
Console.WriteLine("{0} is out of range of an Int64.", bigNumber);
}
// The example displays the following output:
// 163245617943825
// 35902
// 1,632,019,785,549,999,969,612,091,883,520 is out of range of an Int64.JavaScriptSerializer() and convert to base64
class Program
{
static void Main(string[] args)
{
var account = new ExternalAccount() { Name = "Someone" };
string json = JsonConvert.SerializeObject(account);
string base64EncodedExternalAccount = Convert.ToBase64String(Encoding.UTF8.GetBytes(json));
byte[] byteArray = Convert.FromBase64String(base64EncodedExternalAccount);
string jsonBack = Encoding.UTF8.GetString(byteArray);
var accountBack = JsonConvert.DeserializeObject<ExternalAccount>(jsonBack);
Console.WriteLine(accountBack.Name);
Console.ReadLine();
}
}
[Serializable]
public class ExternalAccount
{
public string Name { get; set; }
}base64
function getBase64(file:any) {
return new Promise((resolve, reject) => {
const reader = new FileReader();
reader.readAsDataURL(file);
reader.onload = () => resolve(reader.result);
reader.onerror = error => reject(error);
});
}decode base64
import base64, sys; base64.decode(open(sys.argv[1], "rb"), open(sys.argv[2], "wb"))Copyright © 2021 Codeinu
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