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method Buffer.writeUInt16LE

#Buffer.writeUInt16LE(
value: number,
offset?: number,
): number

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

This function is also available under the writeUint16LE alias.

import { Buffer } from 'node:buffer';

const buf = Buffer.allocUnsafe(4);

buf.writeUInt16LE(0xdead, 0);
buf.writeUInt16LE(0xbeef, 2);

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

Parameters #

#value: number

Number to be written to buf.

#offset: number = 0
optional

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

Return Type #

number

offset plus the number of bytes written.

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