Deno vs Node: File server

deno_file_server.ts

import {readableStreamFromReader as toStream} from "https://deno.land/std/io/mod.ts";

const baseServePath='/Users/mayankc/Work/source/deno-vs-nodejs/testdata';
const listener = Deno.listen({ port: 3000 });
for await(const conn of listener)
    handleNewConnection(conn);

async function handleNewConnection(conn: Deno.Conn) {
    for await(const {request:req, respondWith:res} of Deno.serveHttp(conn)) {
        const filePath=baseServePath+(new URL(req.url)).pathname;
        const fileSize=(await Deno.stat(filePath)).size.toString();
	    res(new Response(toStream(await Deno.open(filePath)), {
		    headers: { 
                'content-type': 'text/javascript',
                'content-length': fileSize
            }
	    }));
    }
}

node_file_server.ts

const http = require("http");
const {stat}=require("fs").promises;
const fs = require("fs");

const baseServePath='/Users/mayankc/Work/source/deno-vs-nodejs/testdata';
const server = http.createServer(async (req, res) => {
    const filePath=baseServePath+req.url;
    const fileSize=(await stat(filePath)).size;
    res.writeHead(200, { 
        'content-type': 'text/javascript',
        'content-length': fileSize
    });
    fs.createReadStream(filePath).pipe(res);
});
  
server.listen(3000);