1:  const buffer = new ArrayBuffer(4);

   2:  const view = new DataView(buffer);

   3:  view.setUint32(0, 12345, false); // false for big-endian

   4:  

   5:  // Get the byte array

   6:  const byteArray = new Uint8Array(buffer);

   7:  console.log(byteArray); // Output: Uint8Array [ 0, 0, 48, 57 ] (big-endian)

   8:  

   9:  // Convert to little-endian by reversing the byte array

  10:  const littleEndianArray = Array.from(byteArray).reverse();

  11:  console.log(littleEndianArray); // Output: [57, 48, 0, 0] (little-endian)