ArrayBuffer.prototype.byteLength
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 byteLength
accessor property of ArrayBuffer
instances returns the length (in bytes) of this array buffer.
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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
Using byteLength
js
const buffer = new ArrayBuffer(8);
buffer.byteLength; // 8
Specifications
Specification |
---|
ECMAScript Language Specification # sec-get-arraybuffer.prototype.bytelength |
Browser compatibility
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