W3cubDocs

ArrayBuffer.isView()

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 ArrayBuffer.isView() static method determines whether the passed value is one of the ArrayBuffer views, such as typed array objects or a DataView.

Try it

// Create an ArrayBuffer with a size in bytes
const buffer = new ArrayBuffer(16);

console.log(ArrayBuffer.isView(new Int32Array()));
// Expected output: true

Syntax

ArrayBuffer.isView(value)

Parameters

value: The value to be checked.

Return value

true if the given argument is one of the ArrayBuffer views; otherwise, false.

Examples

Using isView

ArrayBuffer.isView(); // false
ArrayBuffer.isView([]); // false
ArrayBuffer.isView({}); // false
ArrayBuffer.isView(null); // false
ArrayBuffer.isView(undefined); // false
ArrayBuffer.isView(new ArrayBuffer(10)); // false

ArrayBuffer.isView(new Uint8Array()); // true
ArrayBuffer.isView(new Float32Array()); // true
ArrayBuffer.isView(new Int8Array(10).subarray(0, 3)); // true

const buffer = new ArrayBuffer(2);
const dv = new DataView(buffer);
ArrayBuffer.isView(dv); // true

Specifications

Specification
ECMAScript® 2026 Language Specification> # sec-arraybuffer.isview>

Browser compatibility

	Desktop					Mobile							Server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	WebView on iOS	Bun	Deno	Node.js
`isView`	32	12	29	19	7	32	29	19	7	2.0	4.4.3	7	1.0.0	1.0	4.0.0