JavaScript ArrayBuffer slice() 方法的总结

🌙
手机阅读
本文目录结构

**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)。

The source for this interactive example is stored in a GitHub repository. If you’d like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

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Typed Array Specification Obsolete Superseded by EMCAScript 6.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.

相关链接


AXIHE / 精选资源

浏览全部教程

面试题

学习网站

前端培训
自己甄别

前端书籍

关于朱安邦

我叫 朱安邦,阿西河的站长,在杭州。

以前是一名平面设计师,后来开始接接触前端开发,主要研究前端技术中的JS方向。

业余时间我喜欢分享和交流自己的技术,欢迎大家关注我的 Bilibili

关注我: Github / 知乎

目前重心已经放在研究区块链上面了

我叫朱安邦,阿西河的站长

目前在杭州从事区块链周边的开发工作,机械专业,以前从事平面设计工作。

2014年底脱产在老家自学6个月的前端技术,自学期间几乎从未出过家门,最终找到了满意的前端工作。更多>