Node.js

Append Big-Endian or Little-Endian Integers

Demonstrates how to append integers in big-endian or little-endian byte order to a BinData.

Note: This example requires Chilkat v9.5.0.77 or greater.

Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    var bd = new chilkat.BinData();

    //  The hex value of decimal 123456789 is 0x075BCD15
    var x = 123456789;

    //  Appending little-endian causes bytes to be
    //  appended in the order 0x15, 0xCD, 0x5B, 0x07
    var littleEndian = true;
    success = bd.AppendInt4(x,littleEndian);

    console.log(bd.GetEncoded("hex"));
    //  Output is: 15CD5B07

    //  Now append the same integer in big-endian byte order.
    //  Appending bit-endian causes bytes to be
    //  appended in the order 0x07, 0x5B, 0xCD, 0x15
    littleEndian = false;
    bd.AppendInt4(x,littleEndian);

    console.log(bd.GetEncoded("hex"));
    //  bd now contains: 15CD5B07075BCD15

    //  -------------------------------------------
    //  Now do the same thing with 16-bit integers
    bd.Clear();

    //  1234 decimal = 0x04D2 hex.
    x = 1234;

    littleEndian = true;
    bd.AppendInt2(x,littleEndian);

    console.log(bd.GetEncoded("hex"));
    //  Output is: D204

    littleEndian = false;
    bd.AppendInt2(x,littleEndian);

    console.log(bd.GetEncoded("hex"));
    //  Output is now: D20404D2

}

chilkatExample();