DataView.prototype.setUint8()

setUint8()从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).

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.

dataview.setUint8(byteOffset, value)

byteOffset

偏移量，从头开始计算，单位为字节

value

设置的数值

undefined.

RangeError

如果byteOffset超出了视图能储存的值，就会抛出错误.

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

• DataView
• ArrayBuffer