该 `ArrayBuffer[@@species]` 访问器属性会返回 `ArrayBuffer` 构造器。

## 语法

    ArrayBuffer[Symbol.species]

## 描述

这个 species 访问器属性会返回默认的 `ArrayBuffer` 构造器。子类构造器可能会覆盖它以改变构造器赋值。

## 示例

返回默认的 `ArrayBuffer` 构造器：

    ArrayBuffer[Symbol.species]; // function ArrayBuffer()

在派生集合对象中（比如你定制的 array buffer `MyArrayBuffer`），`MyArrayBuffer` species 就是 `MyArrayBuffer` 构造器。但是，你可能想要在派生类里重写它，以期返回的是父类的 `ArrayBuffer` 对象：

    class MyArrayBuffer extends ArrayBuffer {
      // Overwrite MyArrayBuffer species to the parent ArrayBuffer constructor
      static get [Symbol.species]() { return ArrayBuffer; }
    }

## 规范

Specification | Status | Comment
--- | --- | ---
ECMAScript 2015 (6th Edition, ECMA-262) get ArrayBuffer [ @@species ] | Standard | Initial definition.
ECMAScript Latest Draft (ECMA-262) get ArrayBuffer [ @@species ] | Draft |

## 浏览器支持

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.

Update compatibility data on GitHub

| Desktop | Mobile | Server
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | Safari on iOS | Samsung Internet | Node.js
`@@species` | Chrome ? | Edge Full support 13 | Firefox Full support 48 | IE ? | Opera ? | Safari ? | WebView Android ? | Chrome Android ? | Edge Mobile ? | Firefox Android Full support 48 | Opera Android ? | Safari iOS ? | Samsung Internet Android ? | nodejs 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
Compatibility unknown
  Compatibility unknown
User must explicitly enable this feature.
  User must explicitly enable this feature.

## 相关

- `ArrayBuffer`
- `Symbol.species`