nodejs express
npm init
npm install express --save
npm install body-parser --save
npm install nodemon --save / --g
npm install bcryptjs --savecreate app.js
var express = require('express');
var bodyParser = require('body-parser');
var app = express();
app.get('/', function (req, res) {
res.send('Hello World!')
})
app.listen(3000, function () {
console.log('listening on port 3000')
})