buffer 属性描述了在构造时被 DataView 引用的 ArrayBuffer

语法

dataview.buffer

描述

buffer 属性是一个访问器(accessor)属性,它的 set 属性为 undefined,这意味着它是只读的。值在 DataView 被创建时就确定了,且不能改变。

示例

使用buffer属性

var buffer = new ArrayBuffer(8);
var dataview = new DataView(buffer);
dataview.buffer; // ArrayBuffer { byteLength: 8 }

规范

Specification Status Comment
ECMAScript 2015 (6th Edition, ECMA-262)
DataView.prototype.buffer
Standard Initial definition.
ECMAScript Latest Draft (ECMA-262)
DataView.prototype.buffer
Draft  

浏览器兼容性

Update compatibility data on GitHub
DesktopMobileServer
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung InternetNode.js
Basic supportChrome Full support 9Edge Full support 12Firefox Full support 15IE Full support 10Opera Full support 12.1Safari Full support 5.1WebView Android Full support 4Chrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 15Opera Android Full support 12Safari iOS Full support 4.2Samsung Internet Android Full support Yesnodejs Full support Yes
SharedArrayBuffer accepted as bufferChrome Full support 60Edge ? Firefox Full support 55IE ? Opera ? Safari ? WebView Android ? Chrome Android ? Edge Mobile ? Firefox Android Full support 55Opera Android ? Safari iOS ? Samsung Internet Android ? nodejs ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown

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