ExpressJs

15th November 2022

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ExpressJS is free-open source ,light-weight node js based web application framework and current version is 4.17

It is designed for building single ,multipage and hybrid web application . It is perfect framework for ultra fast input/output.

It is cross platform . it support mvc(model view control) and middleware. It supports multiple template like EJS ,Handlebars,pug.It supports both Nosql & RDBMS database

It has high Performance . It prepare a thin layer therefore, the performance is high .It supports Routing table in order to perform diiferent HTPP operation.

Hello world program in express js

     
     
    
  const express = require("express");
  const app = express();
  const port = 3000;

  app.get("/",function (req, res) {
  res.send("Hello World!");
  });

  app.listen(port, function() {
  console.log(`app listening on port ${port}!`);
  });