DataView.prototype.getUint16()
BaselineWidely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
ThegetUint16() method ofDataView instances reads 2 bytes starting at the specified byte offset of thisDataView 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 bytesconst buffer = new ArrayBuffer(16);const view = new DataView(buffer);view.setUint16(1, 65535); // Max unsigned 16-bit integerconsole.log(view.getUint16(1));// Expected output: 65535Syntax
js
getUint16(byteOffset)getUint16(byteOffset, littleEndian)Parameters
byteOffsetThe offset, in bytes, from the start of the view to read the data from.
littleEndianOptionalIndicates whether the data is stored inlittle- or big-endian format. If
falseorundefined, a big-endian value is read.
Return value
An integer from 0 to 65535, inclusive.
Exceptions
RangeErrorThrown if the
byteOffsetis set such that it would read beyond the end of the view.
Examples
Using getUint16()
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)); // 258Specifications
| Specification |
|---|
| ECMAScript® 2026 Language Specification # sec-dataview.prototype.getuint16 |