The byteOffset
accessor property represents the offset (in bytes) of a typed array from the start of its ArrayBuffer
.
Syntax
typedarray.byteOffset
Description
The byteOffset
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. TypedArray is one of the TypedArray objects.
Examples
Using the byteOffset
property
var buffer = new ArrayBuffer(8); var uint8 = new Uint8Array(buffer); uint8.byteOffset; // 0 (no offset specified) var uint8 = new Uint8Array(buffer, 3); uint8.byteOffset; // 3 (as specified when constructing Uint8Array)
Specifications
Specification | Status | Comment |
---|---|---|
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'TypedArray.prototype.byteOffset' in that specification. |
Standard | Initial definition. |
ECMAScript Latest Draft (ECMA-262) The definition of 'TypedArray.prototype.byteOffset' in that specification. |
Draft |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | 7.0 | 4.0 (2) | 10 | 11.6 | 5.1 |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | 4.0 | (Yes) | 4.0 (2) | 10 | 11.6 | 4.2 |