Skip to main content
Using Deno in production at your company? Earn free Deno merch.
Give us feedback
function Deno.fsync

Flushes any pending data and metadata operations of the given file stream to disk.

const file = await"my_file.txt", { read: true, write: true, create: true });
await Deno.write(file.rid, new TextEncoder().encode("Hello World"));
await Deno.ftruncate(file.rid, 1);
await Deno.fsync(file.rid);
console.log(new TextDecoder().decode(await Deno.readFile("my_file.txt"))); // H


rid: number