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 |