`slice()`方法返回一个新的 `ArrayBuffer` ，它的内容是这个`ArrayBuffer的`字节副本，从begin（包括），到end（不包括）。

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## 语法

    arraybuffer.slice(begin[, end])

### 参数

`begin`
  从零开始的字节索引，切片从这开始。

`end`
  结束切片的字节索引。如果没指定end，新的 `ArrayBuffer` 将包含这个 `ArrayBuffer` 从头到尾的所有字节。由begin和end指定的这个范围夹在当前数组的有效索引范围内。如果新`ArrayBuffer`的长度在计算后为负，它将强制为0 。

### 返回值

一个新的 `ArrayBuffer` 对象。

## 描述

`slice` 方法复制到但不包括由end参数指示的字节。如果begin或end是负数，则指的是从数组末尾开始的索引，而不是从头开始。

## 示例

### 复制一个 `ArrayBuffer`

    var buf1 = new ArrayBuffer(8);
    var buf2 = buf1.slice(0);

## 规范

Specification | Status | Comment
--- | --- | ---
Typed Array Specification | Obsolete | Superseded by EMCAScript 6.
ECMAScript 2015 (6th Edition, ECMA-262) ArrayBuffer.prototype.slice | Standard | Initial definition in an ECMA standard.
ECMAScript Latest Draft (ECMA-262) ArrayBuffer.prototype.slice | Draft |

## 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
`slice` | Chrome Full support Yes | Edge Full support 12 | Firefox Full support 12 Notes Full support 12 Notes Notes The non-standard `ArrayBuffer.slice()` method has been removed in Firefox 53 (but the standardized version `ArrayBuffer.prototype.slice()` is kept. | IE Full support 11 | Opera Full support Yes | Safari Full support 6 | WebView Android Full support Yes | Chrome Android Full support Yes | Edge Mobile Full support Yes | Firefox Android Full support 14 Notes Full support 14 Notes Notes The non-standard `ArrayBuffer.slice()` method has been removed in Firefox 53 (but the standardized version `ArrayBuffer.prototype.slice()` is kept. | Opera Android Full support Yes | Safari iOS Full support 6 | Samsung Internet Android Full support Yes | nodejs Full support Yes

### Legend

Full support
  Full support
See implementation notes.
  See implementation notes.

## 相关链接

- `ArrayBuffer`