Write the contents of the array buffer (p) to the connection.

Resolves to the number of bytes written.

It is not guaranteed that the full buffer will be written in a single call.

const conn = await Deno.connect({ hostname: "example.com", port: 80 });
const encoder = new TextEncoder();
const data = encoder.encode("Hello world");
const bytesWritten = await conn.write(data); // 11