method Buffer.writeUInt8
Jump to headingBuffer.writeUInt8(value: number,offset?: number,): numberWrites 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 'node: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 Jump to heading
Jump to headingvalue: numberNumber to be written to buf.
optional
Jump to headingoffset: number = 0Number of bytes to skip before starting to write. Must satisfy 0 <= offset <= buf.length - 1.
Return Type Jump to heading
numberoffset plus the number of bytes written.