ArrayBuffer.prototype.byteLength

The byteLength accessor property represents the length of an ArrayBuffer in bytes.

Syntax

arraybuffer.byteLength

Description

The byteLength property is an accessor property whose set accessor function is undefined, meaning that you can only read this property. The value is established when the array is constructed and cannot be changed. This property returns 0 if this ArrayBuffer has been detached.

Examples

var buffer = new ArrayBuffer(8);
buffer.byteLength; // 8

Specifications

Specification Status Comment
Typed Array Specification Obsolete Superseded by ECMAScript 2015.
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'ArrayBuffer.prototype.byteLength' in that specification.
Standard Initial definition in an ECMA standard.
ECMAScript Latest Draft (ECMA-262)
The definition of 'ArrayBuffer.prototype.byteLength' in that specification.
Living Standard  

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support7 Yes41011.65.1
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidIE mobileOpera AndroidiOS Safari
Basic support4 Yes Yes41011.64.2

See also

Document Tags and Contributors

 Contributors to this page: fscholz, jameshkramer, kdex
 Last updated by: fscholz,