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writeUInt32BE

method Buffer.writeUInt32BE
Jump to headingBuffer.writeUInt32BE(
value: number,
offset?: number,
): number

Writes value to buf at the specified offset as big-endian. The value must be a valid unsigned 32-bit integer. Behavior is undefined when valueis anything other than an unsigned 32-bit integer.

This function is also available under the writeUint32BE alias.

import { Buffer } from 'node:buffer';

const buf = Buffer.allocUnsafe(4);

buf.writeUInt32BE(0xfeedface, 0);

console.log(buf);
// Prints: <Buffer fe ed fa ce>

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 - 4.

Return Type Jump to heading

number

offset plus the number of bytes written.

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