DataView.prototype.setUint8()

The setUint8() method stores an unsigned 8-bit integer (byte) value at the specified byte offset from the start of the DataView.

setUint8(byteOffset, value)

byteOffset

The offset, in byte, from the start of the view where to store the data.

value

The value to set.

undefined.

RangeError

Thrown if the byteOffset is set such as it would store beyond the end of the view.

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

• DataView
• ArrayBuffer