import { Deno } from "https://deno.land/x/ayonli_jsext@v0.9.72/lib.deno.d.ts";
const { FsFile } = Deno;
Synchronously write the contents of the array buffer (p) to the file.
Returns the number of bytes written.
It is not guaranteed that the full buffer will be written in a single call.
const encoder = new TextEncoder();
const data = encoder.encode("Hello world");
using file = Deno.openSync("/foo/bar.txt", { write: true });
const bytesWritten = file.writeSync(data); // 11