DataView.prototype.setUint8()

setUint8()DataView起始位置以byte为计数的指定偏移量(byteOffset)处储存一个8-bit数(无符号字节).

语法

dataview.setUint8(byteOffset, value)

参数

byteOffset
偏移量,从头开始计算,单位为字节
value
设置的数值

返回

undefined.

抛出错误

RangeError
如果byteOffset超出了视图能储存的值,就会抛出错误.

例子

var buffer = new ArrayBuffer(8);
var dataview = new DataView(buffer);
dataview.setUint8(1, 3);
dataview.getUint8(1); // 3

规范

Specification Status Comment
Typed Array Specification Obsolete Superseded by ECMAScript 6.
ECMAScript 2015 (6th Edition, ECMA-262)
DataView.prototype.setUint8
Standard Initial definition in an ECMA standard.
ECMAScript 2017 Draft (ECMA-262)
DataView.prototype.setUint8
Draft  

浏览器支持

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

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