import { Buffer } from "https://deno.land/std@0.116.0/node/buffer.ts";
Writes value to buf at the specified offset. value must be a valid
signed 8-bit integer. Behavior is undefined when value is anything other than
a signed 8-bit integer.
value is interpreted and written as a two's complement signed integer.
import { Buffer } from 'buffer';
const buf = Buffer.allocUnsafe(2);
buf.writeInt8(2, 0);
buf.writeInt8(-2, 1);
console.log(buf);
// Prints: <Buffer 02 fe>