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      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)。

      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

      SpecificationStatusComment
      Typed Array SpecificationObsoleteSuperseded 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)StandardInitial 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

      DesktopMobileServer
      ChromeEdgeFirefox
      sliceChrome Full support YesEdge Full support 12Firefox 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.

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