byteOffset 属性描述了从 ArrayBuffer 开始的字节偏移量。

语法

dataview.byteOffset

描述

 byteOffset 属性是一个获取(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 byteOffset 属性

var buffer = new ArrayBuffer(8);
var dataview = new DataView(buffer);
dataview.byteOffset; // 0 (没有指定偏移量)

var dataview2 = new DataView(buffer, 3);
dataview2.byteOffset; // 3 (在构造DataView时指定)

规范

Specification Status Comment
ECMAScript 2015 (6th Edition, ECMA-262)
DataView.prototype.byteOffset
Standard Initial definition.
ECMAScript Latest Draft (ECMA-262)
DataView.prototype.byteOffset
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 9.0 15.0 (15.0) 10 12.1 5.1
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support 4.0 (Yes) 15.0 (15) ? 12.0 4.2

相关链接

文档标签和贡献者

 此页面的贡献者: wizardforcel, holynewbie
 最后编辑者: wizardforcel,