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writeUInt16BE

method Buffer.writeUInt16BE
Jump to headingBuffer.writeUInt16BE(
value: number,
offset?: number,
): number

Writes value to buf at the specified offset as big-endian. The value must be a valid unsigned 16-bit integer. Behavior is undefined when valueis anything other than an unsigned 16-bit integer.

This function is also available under the writeUint16BE alias.

import { Buffer } from 'node:buffer';

const buf = Buffer.allocUnsafe(4);

buf.writeUInt16BE(0xdead, 0);
buf.writeUInt16BE(0xbeef, 2);

console.log(buf);
// Prints: <Buffer de ad be ef>

Parameters Jump to heading

Jump to headingvalue: number

Number to be written to buf.

optional
Jump to headingoffset: number = 0

Number of bytes to skip before starting to write. Must satisfy 0 <= offset <= buf.length - 2.

Return Type Jump to heading

number

offset plus the number of bytes written.

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