how to run nodejs code example

Example 1: run node js

node name_app.js

Example 2: SERVER PORT NODE.JS

const http = require('http');

const hostname = '127.0.0.1';
const port = 3000;

const server = http.createServer((req, res) => {
  res.statusCode = 200;
  res.setHeader('Content-Type', 'text/plain');
  res.end('Hello World');
});

server.listen(port, hostname, () => {
  console.log(`Server running at http://${hostname}:${port}/`);
});

Example 3: javascript running at node

const inNode = new Function('try{return this===global;}catch(err){return false;}')();

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