JavaScript ArrayBuffer slice() 方法的总结
**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| Typed Array Specification | Obsolete | Superseded by EMCAScript 6.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](https://www.ecma-international.org/ecma-262/6.0/#sec-arraybuffer.prototype.slice) | Standard | Initial definition in an ECMA standard. |
| [ECMAScript Latest Draft (ECMA-262) | ||
| ArrayBuffer.prototype.slice](https://tc39.es/ecma262/#sec-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 | |
| — | — | — | — |
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 | 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.
