var typed_array = new Uint8Array(6);
for(var i = 0; i < typed_array.length; i++){
  typed_array[i] = i;
}

var array_buffer = typed_array.buffer;
console.log("byteLength of ArrayBuffer : " + array_buffer.byteLength);

var node_buffer = new Buffer(array_buffer);
console.log("Node Buffer : ");
console.log(node_buffer);

console.log("byteLength of ArrayBuffer in Node Buffer : ", node_buffer.buffer.byteLength);

var another_node_buffer = new Buffer(node_buffer);
console.log("Another Node Buffer : ");
console.log(another_node_buffer);

console.log("byteLength of ArrayBuffer in Another Node Buffer : ", another_node_buffer.buffer.byteLength);