DataView.prototype.setInt8()

setInt8()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(一个字节).

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dataview.setInt8(byteOffset, value)

byteOffset

偏移量，从头开始计算，单位为字节

value

设置的整数值

返回

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.setInt8(1, 3);
dataview.getInt8(1); // 3

• DataView
• ArrayBuffer