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fsync - fs - Node documentation
function fsync

Usage in Deno

import { fsync } from "node:fs";
fsync(
fd: number,
callback: NoParamCallback,
): void

Request that all data for the open file descriptor is flushed to the storage device. The specific implementation is operating system and device specific. Refer to the POSIX fsync(2) documentation for more detail. No arguments other than a possible exception are given to the completion callback.

Parameters

fd: number
callback: NoParamCallback

Return Type

void