calculator.js

const express = require("express");
const bodyParser = require("body-parser");
const app = express();
app.use(bodyParser.urlencoded({extended: true}));

app.get("/calculator", function(req,res) {
  res.sendFile(__dirname+"/index.html");
});

app.get("/bmiCalculator", function(req,res) {
  res.sendFile(__dirname+"/bmiCalculator.html");
});

app.post("/calculator", function(req, res) {
  var num1 = Number(req.body.num1);
  var num2 = Number(req.body.num2);
//  var result = Math.floor(num1/(num2*num2));
 var result = num1+num2;
  res.send("The result is " + result);
});

app.post("/bmiCalculator", function(req, res) {
  var num1 = Number(req.body.num1);
  var num2 = Number(req.body.num2);
 var result = Math.floor(num1/(num2*num2));
// var result = num1+num2;
  res.send("The result is " + result);
});

app.listen(3000, function() {
  console.log("Server is running on port 3000");
});