byteOffset
属性描述了从 ArrayBuffer
开始的字节偏移量。
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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
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 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
byteOffset |
Chrome Full support 9 | Edge Full support 12 | Firefox Full support 15 | IE Full support 10 | Opera Full support 12.1 | Safari Full support 5.1 | WebView Android Full support 4 | Chrome Android Full support 18 | Firefox Android Full support 15 | Opera Android Full support 12.1 | Safari iOS Full support 4.2 | Samsung Internet Android Full support Yes | nodejs Full support Yes |
Legend
- Full support
- Full support