DataView.prototype.setUint16()

// Create an ArrayBuffer with a size in bytes
const buffer = new ArrayBuffer(16);
const view = new DataView(buffer);
view.setUint16(1, 65535); // Max unsigned 16-bit integer
console.log(view.getUint16(1));
// Expected output: 65535

dataview.setUint16(positionOctet, valeur [, littleEndian])

var buffer = new ArrayBuffer(8);
var dataview = new DataView(buffer);
dataview.setUint16(1, 3);
dataview.getUint16(1); // 3