method Deno.FsFile.prototype.writeSync
FsFile.prototype.writeSync(p: Uint8Array): number
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
number