Meta Buffer Pack: example


    // pack() simple merge Buffers.

    // If you want pure Buffer without meta info.
    // please insert '#' charactor into name filed. or use null string "".
    
    prn('\n#','Pure Buffer')

    let pureBuffer = MBP.pack(
      MBP.MB('#v1','16',15),  // Uint16 
      MBP.MB('#v2','i16',-15),  //Int16
      MBP.MB('','32', 0x11223344),  // Uint32 BigEndian
      MBP.MB('','32L', 0x11223344)  // Uint32 LittleEndian
    )
    
    prn(' pureBuffer', MBP.hex( pureBuffer ) )  // No meta info.
    prn(' pureBuffer.byteLength ', pureBuffer.byteLength )  // 12bytes : 2 + 2 + 4 + 4

  
prn('\n#','Buffer with Meta Info')
prn(' -','added addtional data.')

// pack() : multiple meta buffers => one buffer
  let mbPack = MBP.pack(
    MBP.MB('v1','16',15),  // Uint16 
    MBP.MB('v2','i16',-15),  //Int16
    MBP.MB('v3','32', 0x11223344),  // Uint32 BigEndian
    MBP.MB('v4','32L', 0x11223344),   // Uint32 LittleEndian
    MBP.MB('vStr','abcde'),  // buffer string
  )

  // hex view
    let hex = MBP.hex( mbPack )
    prn('mbpHex', hex)


// unpack():  buffer -> object
    let mbpObj = MBP.unpack( mbPack )
    prnObj('mbpObj', mbpObj)

    prn( 'mbpObj.v1', mbpObj.v1 )
    prn( 'mbpObj.v2', mbpObj.v2 )

// MBA
  function packFunctionParams( ...args){
    return MBP.pack(  MBP.MBA(...args) )
  }

  let mbaPack = packFunctionParams( 'hi', 2332, 22.2, [1, 2, 3], { 'hi': 'yeh' }, true )

  prn( 'mbaPack.byteLength', mbaPack.byteLength )
  let mbaObj = MBP.unpack( mbaPack )

  prnObj('mbaObj', mbaObj.args )  // or mbaObj.$ 

  // Node Buffer in the browser. 
  const Buffer = MBP.Buffer;

  let buf = Buffer.from([1,2,3] )
  prn( 'hex', buf.toString('hex') )
  prn( 'base64', buf.toString('base64') )
  prn( 'hex', Buffer.from('abcdefg').toString('hex') )

  result: