JS dataview getUint8()
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本文目录结构
getUint8()``方法``从DataView相对于起始位置偏移 n 个字节处开始，获取一个无符号的8-bit整数(一个字节).
The source for this interactive example is stored in a GitHub repository. If you’d like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.
语法
dataview.getUint8(byteOffset)
参数
byteOffset
偏移量, 单位为字节, 从头开始计算.
抛出错误
如果byteOffset超出了视图能储存的值，就会抛出错误.
描述
没有对齐约束; 多字节值可以从任何偏移量获取.
例子
var buffer = new ArrayBuffer(8);
var dataview = new DataView(buffer);
dataview.getUint8(1); // 0
规范
| 规范 | 状态 | 说明 |
|---|---|---|
| Typed Array Specification | Obsolete | Superseded by ECMAScript 6. |
| ECMAScript 2015 (6th Edition, ECMA-262)DataView.prototype.getUint8 | Standard | Initial definition in an ECMA standard. |
| ECMAScript Latest Draft (ECMA-262)DataView.prototype.getUint8 | Draft |
