The `ArrayBuffer.isView()` 方法当arg是一个ArrayBuffer的视图就返回true, 例如类型化数组对象(typed array objects )或者 一个数据视图(a `DataView`); 否则返回false.

判断是否为`ArrayBuffer的视`图类实例，包括 typed array objects（类型化数组对象） 和 a `DataView`

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## 语法

    ArrayBuffer.isView(arg)

### Parameters（参数）

`arg`
被检测的语句。

## 示例

    ArrayBuffer.isView();                    // false
    ArrayBuffer.isView([]);                  // false
    ArrayBuffer.isView({});                  // false
    ArrayBuffer.isView(null);                // false
    ArrayBuffer.isView(undefined);           // false
    ArrayBuffer.isView(new ArrayBuffer(10)); // false

    ArrayBuffer.isView(new Uint8Array());    // true
    ArrayBuffer.isView(new Float32Array());  // true
    ArrayBuffer.isView(new Int8Array(10).subarray(0, 3)); // true

    var buffer = new ArrayBuffer(2);
    var dv = new DataView(buffer);
    ArrayBuffer.isView(dv); // true

## 说明文档

Specification（说明书） | Status（状态） | Comment（备注）
--- | --- | ---
Typed Array Specification | Obsolete | Superseded by ECMAScript 6.
ECMAScript 2015 (6th Edition, ECMA-262) ArrayBuffer.isView | Standard | Initial definition in an ECMA standard.

## 浏览器兼容性

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
`isView` | Chrome Full support Yes | Edge Full support 12 | Firefox Full support 29 | IE Full support 11 | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Edge Mobile Full support Yes | Firefox Android Full support 29 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes | nodejs Full support Yes

### Legend

Full support
  Full support

## 另见参考文档

- JavaScript typed arrays