Step by Step solution about How to resolve the algorithm Hello world/Web server step by step in the JavaScript programming language

The given code snippet is written in JavaScript and it creates a simple HTTP server that listens on port 8080 and responds to requests with a "Goodbye, World!" message.

• The first line imports the 'http' module.

• The second line creates a new HTTP server using the createServer() method. The server is passed a callback function that will be executed when a request is received.

• The callback function takes two parameters: req (the incoming request object) and res (the outgoing response object).

• The callback function first sets the HTTP status code to 200 (OK) and sets the Content-Type header to 'text/plain'.

• The callback function then ends the response by sending the 'Goodbye, World!\n' message.

• The last line starts the server and tells it to listen on port 8080 on the local machine (127.0.0.1).

This code can be used to create a simple web server that can be used to serve static files or to provide a simple REST API.

var http = require('http');

http.createServer(function (req, res) {
    res.writeHead(200, {'Content-Type': 'text/plain'});
    res.end('Goodbye, World!\n');
}).listen(8080, '127.0.0.1');