The ArrayBuffer[@@species]
accessor property returns the ArrayBuffer
constructor.
Description
The species accessor property returns the default constructor for ArrayBuffer
objects. Subclass constructors may over-ride it to change the constructor assignment.
Examples
Species in ordinary objects
The species property returns the default constructor function, which is the ArrayBuffer
constructor for ArrayBuffer
objects:
ArrayBuffer[Symbol.species]; // function ArrayBuffer()
Species in derived objects
In a derived collection object (e.g. your custom array buffer MyArrayBuffer
), the MyArrayBuffer
species is the MyArrayBuffer
constructor. However, you might want to overwrite this, in order to return parent ArrayBuffer
objects in your derived class methods:
class MyArrayBuffer extends ArrayBuffer { // Overwrite MyArrayBuffer species to the parent ArrayBuffer constructor static get [Symbol.species]() { return ArrayBuffer; } }
Specifications
Specification |
---|
ECMAScript (ECMA-262) The definition of 'get ArrayBuffer [ @@species ]' in that specification. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | Server | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
@@species | Chrome Full support 51 | Edge Full support 13 | Firefox Full support 48 | IE No support No | Opera Full support 38 | Safari Full support 10 | WebView Android Full support 51 | Chrome Android Full support 51 | Firefox Android Full support 48 | Opera Android Full support 41 | Safari iOS Full support 10 | Samsung Internet Android Full support 5.0 | nodejs
Full support
6.5.0
|
Legend
- Full support
- Full support
- No support
- No support
- User must explicitly enable this feature.
- User must explicitly enable this feature.