The byteLength
accessor property represents the length (in bytes) of the typed array.
TypedArray.prototype.byteLength
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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 a TypedArray is constructed and cannot be changed. If the TypedArray is not specifying a byteOffset
or a length
, the length
of the referenced ArrayBuffer
will be returned. TypedArray is one of the TypedArray objects.
Examples
Using the byteLength property
var buffer = new ArrayBuffer(8); var uint8 = new Uint8Array(buffer); uint8.byteLength; // 8 (matches the byteLength of the buffer) var uint8 = new Uint8Array(buffer, 1, 5); uint8.byteLength; // 5 (as specified when constructing the Uint8Array) var uint8 = new Uint8Array(buffer, 2); uint8.byteLength; // 6 (due to the offset of the constructed Uint8Array)
Specifications
Browser compatibility
Desktop | Mobile | Server | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | Deno | Node.js | |
byteLength |
7
|
14
|
4
|
10
|
11.6
|
5.1
|
4
|
18
|
4
|
12
|
4.2
|
1.0
|
1.0
|
0.10.0
|
See also
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/byteLength