how to write file from rendered HTML nodejs code example

Example 1: show html file on nodejs code

let http = require('http');
let fs = require('fs');
 
let handleRequest = (request, response) => {
    response.writeHead(200, {
        'Content-Type': 'text/html'
    });
    fs.readFile('./index.html', null, function (error, data) {
        if (error) {
            response.writeHead(404);
            respone.write('Whoops! File not found!');
        } else {
            response.write(data);
        }
        response.end();
    });
};
 
http.createServer(handleRequest).listen(8000);

Example 2: render html in node js

render html in node js
-----------------------------
//server.js & index.html keep in same dir
app.use(express.static('./'));

app.get('/', function(req, res) { 
    res.render('index.html');
});