Setup Node Server in Local Dev (MacOS)

# create directory for the node project
# init a new npm project
npm init

# install express server
npm i express

Open editor and add some basic code

var app = require('express')();
var http = require('http').Server(app);
app.get('/', function(req, res) {
 res.send(`
 <h1>Hello World</h1>
 `);
});

http.listen(3000, function() {
 console.log("listening on 3000");
});

run the app

node appname.js

open a web browser and open the page

http://localhost:3000