Module

std/node/buffer.ts>Buffer#writeUInt8

Deno standard library
denoland/deno_std
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method Buffer.prototype.writeUInt8
import { Buffer } from "https://dotland.deno.dev/std@0.177.0/node/buffer.ts";

Writes value to buf at the specified offset. value must be a valid unsigned 8-bit integer. Behavior is undefined when value is anything other than an unsigned 8-bit integer.

This function is also available under the writeUint8 alias.

import { Buffer } from 'buffer';

const buf = Buffer.allocUnsafe(4);

buf.writeUInt8(0x3, 0);
buf.writeUInt8(0x4, 1);
buf.writeUInt8(0x23, 2);
buf.writeUInt8(0x42, 3);

console.log(buf);
// Prints: <Buffer 03 04 23 42>

Parameters

value: number

Number to be written to buf.

optional
offset: number

Number of bytes to skip before starting to write. Must satisfy 0 <= offset <= buf.length - 1.

Returns

number

offset plus the number of bytes written.