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buffer访问器属性表示由TypedArray在构造期间引用的ArrayBuffer

语法

typedArray.buffer

描述

buffer 属性是一个访问器属性,它的 set 访问器函数是undefined,意思是你只能够读取这个属性。它的值在TypedArray构造时建立,不能被修改。TypedArray是这里的类型化数组之一。

示例

使用 buffer 属性

var buffer = new ArrayBuffer(8);
var uint16 = new Uint16Array(buffer);
uint16.buffer; // ArrayBuffer { byteLength: 8 }

规范

Specification Status Comment
ECMAScript 2015 (6th Edition, ECMA-262)
TypedArray.prototype.buffer
Standard 初始定义。
ECMAScript Latest Draft (ECMA-262)
TypedArray.prototype.buffer
Draft  

浏览器兼容性

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 7.0 4.0 (2) 10 11.6 5.1
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support 4.0 (Yes) 4.0 (2) 10 11.6 4.2

另见

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