get ArrayBuffer[@@species]

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

DesktopMobileServer
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung InternetNode.js
@@speciesChrome Full support 51Edge Full support 13Firefox Full support 48IE No support NoOpera Full support 38Safari Full support 10WebView Android Full support 51Chrome Android Full support 51Firefox Android Full support 48Opera Android Full support 41Safari iOS Full support 10Samsung Internet Android Full support 5.0nodejs Full support 6.5.0
Full support 6.5.0
Full support 6.0.0
Disabled
Disabled From version 6.0.0: this feature is behind the --harmony runtime flag.

Legend

Full support
Full support
No support
No support
User must explicitly enable this feature.
User must explicitly enable this feature.

See also