Deno.futime
UNSTABLE: needs investigation into high precision time.
Changes the access (atime) and modification (mtime) times of a file
stream resource referenced by rid. Given times are either in seconds
(UNIX epoch time) or as Date objects.
const file = await Deno.open("file.txt", { create: true, write: true });
await Deno.futime(file.rid, 1556495550, new Date());
function futime(
rid: number,
atime: number | Date,
mtime: number | Date,
): Promise<void>;