DataView.prototype.getInt8()

// Create an ArrayBuffer with a size in bytes
const buffer = new ArrayBuffer(16);

const view = new DataView(buffer);
view.setInt8(1, 127); // Max signed 8-bit integer

console.log(view.getInt8(1));
// Expected output: 127

var buffer = new ArrayBuffer(8);
var dataview = new DataView(buffer);
dataview.getInt8(1); // 0