DataView.prototype.getUint16()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The getUint16() method of DataView instances reads 2 bytes starting at the specified byte offset of this DataView and interprets them as a 16-bit unsigned integer. There is no alignment constraint; multi-byte values may be fetched from any offset within bounds.

Try it

// 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

Syntax

js
getUint16(byteOffset)
getUint16(byteOffset, littleEndian)

Parameters

byteOffset

The offset, in bytes, from the start of the view to read the data from.

littleEndian Optional

Indicates whether the data is stored in little- or big-endian format. If false or undefined, a big-endian value is read.

js
const { buffer } = new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
const dataview = new DataView(buffer);
console.log(dataview.getUint16(1)); // 258