text: const express = require("express");
  
  const app = express();
  
  app.use(express.static("public"));
  
  // eslint-disable-next-line no-unused-vars
  app.get("/index", (req, res) => {
      res.sendFile(`${__dirname}/public/index.html`);
  });
  
  app.get("/node", (req, res) => {
      res.sendFile(`${__dirname}/public/node.html`);
  });
  
  app.get("/express", (req, res) => {
      res.sendFile(`${__dirname}/public/express.html`);
  });
  
  app.get("/environment", (req, res) => {
      res.sendFile(`${__dirname}/public/environment.html`);
  });
  
  app.get("/basic", (req, res) => {
      res.sendFile(`${__dirname}/public/basic.html`);
  });
  
  const port = process.env.PORT || 8080;
  
  app.listen(port, (error) => {
      if (error) {
          console.log(error);
      }
      console.log("Server is running on port:", Number(port));
  });