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 (ECMA-262) DataView.prototype.byteOffset |
Living Standard |
浏览器兼容性
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