get ArrayBuffer[@@species]
The ArrayBuffer[@@species]
accessor property returns the ArrayBuffer
constructor.
Syntax
ArrayBuffer[Symbol.species]
Description
The species accessor property returns the default constructor for ArrayBuffer
objects. Subclass constructors may over-ride it to change the constructor assignment.
Examples
The species property returns the default constructor function, which is the ArrayBuffer
constructor for ArrayBuffer
objects:
ArrayBuffer[Symbol.species]; // function ArrayBuffer()
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 | Status | Comment |
---|---|---|
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'get ArrayBuffer [ @@species ]' in that specification. |
Standard | Initial definition. |
ECMAScript 2017 Draft (ECMA-262) The definition of 'get ArrayBuffer [ @@species ]' in that specification. |
Draft |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | ? | 48 (48) | ? | ? | ? |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | ? | ? | 48.0 (48) | ? | ? | ? |
See also
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/javascript/reference/global_objects/arraybuffer/@@species