My first web app Simple-Calculator
1-download node
sudo apt install nodejs
2-then download source code
node server.js
4-open browser ###localhost:3000/
var express = require('express'),
app = express();
# body-parser
var bodyParser = require('body-parser');
# end html file to a req
res.sendFile(__dirname + "/index.html");
Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.