//! [0]
    var ba = new ByteArray();    // constructs an empty ByteArray
    var ba2 = new ByteArray(10); // constructs a ByteArray of length 10 (all bytes initialized to 0)
//! [0]


//! [1]
    for (var i = 0; i < ba.length; ++i)
        ba[i] = 123;
//! [1]


//! [2]
    ba[0] = 257;
    print(ba[0]);  // 1
//! [2]


//! [3]
    var ba3 = new ByteArray();
    print(ba3.length); // 0
    ba[0] = 64;
    print(ba3.length); // 1
//! [3]


//! [4]
    ba["foo"] = "Hello";
//! [4]


//! [5]
    var ba64 = ba.toBase64();
    print(ba64.toLatin1String());
//! [5]


