writeSync - fs - Node

writeSync - fs - Node documentation

function writeSync

import { writeSync } from "node:fs";



writeSync(fd: number,
buffer: ArrayBufferView,
offset?: number | null,
length?: number | null,
position?: number | null,
): number

For detailed information, see the documentation of the asynchronous version of this API: write.

Parameters



fd: number



buffer: ArrayBufferView

optional



offset: number | null = 0

optional



length: number | null = buffer.byteLength - offset

optional



position: number | null = 'null'

number

The number of bytes written.



writeSync(fd: number,
string: string,
position?: number | null,
encoding?: BufferEncoding | null,
): number

Synchronously writes string to the file referenced by the supplied file descriptor, returning the number of bytes written.



fd: number

A file descriptor.



string: string

A string to write.

optional



position: number | null

The offset from the beginning of the file where this data should be written. If not supplied, defaults to the current position.

optional



encoding: BufferEncoding | null

The expected string encoding.

number