JAVASCRIPT

express js

// We can use express as shown as below
const express = require('express')
const app = express()
const port = 3000

app.get('/', (req, res) => {
  res.send('Hello World!')
})

app.listen(port, () => {
  console.log(`Example app listening at http://localhost:${port}`)
})

what is express.js

Express is a minimal and flexible Node.js web application framework
that provides a robust set of features for building web and mobile applications.

express js

const express = require('express')
const app = express()
const port = 3000

app.get('/', (req, res) => {
  res.send('Hello World!')
})

app.listen(port, () => {
  console.log(`Example app listening on port ${port}`)
})

express js

A Node.js web framework. Good choice!

expressJS

 
async function sendMe()
{

let r =await fetch('/test', {method: 'POST', body: JSON.stringify({a:"aaaaa"}), headers: {'Content-type': 'application/json; charset=UTF-8'}})
let res = await r.json();
console.log(res["a"]);
}
 

express and node

// Load HTTP module
const http = require("http");

const hostname = "127.0.0.1";
const port = 8000;

// Create HTTP server 
const server = http.createServer((req, res) => {

   // Set the response HTTP header with HTTP status and Content type
   res.writeHead(200, {'Content-Type': 'text/plain'});
   
   // Send the response body "Hello World"
   res.end('Hello World
');
});

// Prints a log once the server starts listening
server.listen(port, hostname, () => {
   console.log(`Server running at http://${hostname}:${port}/`);
})

expressjs

Express is a minimal and flexible Node.js web 
application framework that provides a robust set 
of features for web and mobile applications.

what is express.js

Express is a minimal and flexible Node.js web application framework
that provides a robust set of features for web and mobile
applications.

express js

If you are looking for simplier NodeJS express is on the go choice for you.
expressJS is:
 > NodeJS framework
 > Free to use
USES = ['twitter', 'paypal', 'yandex', 'bbc', 'sohu', 'and so on.']

express js

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

app.get('/', (req, res) => {
  res.send('Hello World!')
});

app.listen(port, () => {
  console.log(`App listening at http://localhost:${port}`)
});

express js

Express is a minimal and flexible Node.js web application framework
that provides a robust set of features for web and mobile
applications.

node express

npm i -D express

express js

Express.js, or simply Express, is a web application framework for Node.js,
released as free and open-source software under the MIT License.

It is designed for building web applications and APIs.
It has been called the de facto standard server framework for Node.js.

express js

$ npm install express --save

express nodejs

Fast, unopinionated, minimalist web framework for Node.js

express js

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


// GET method route
app.get('/', function (req, res) {
    res.send('GET request to the homepage');
  });
  
  // POST method route
  app.post('/', function (req, res) {
    res.send('POST request to the homepage');
  });
  

app.listen(3000,()=>{
    console.log("this App is running on port 3000")
})

Express.js

$ npm install express --no-save

express js

.
├── app.js
├── bin
│   └── www
├── package.json
├── public
│   ├── images
│   ├── javascripts
│   └── stylesheets
│       └── style.css
├── routes
│   ├── index.js
│   └── users.js
└── views
    ├── error.pug
    ├── index.pug
    └── layout.pug

7 directories, 9 files

Express.js

app.use(
 session({
   secret: "qEas5ns3gxl41G",
   cookie: { maxAge: 86400000, secure: true },
   resave: false,
   saveUninitialized: false,
   store
 })
);

express js

var express = require('express');
var app = express(); 
var PORT = 3000;
  
app.get('/profile', function (req, res) {
  console.log(req.query.name);
  res.send();
});
  
app.listen(PORT, function(err){
    if (err) console.log(err);
    console.log("Server listening on PORT", PORT);
});

express-js

Express.js, or simply Express, is a back end web application framework for Node.js, released as free and open-source software under the MIT License.
It is designed for building web applications and APIs.
It has been called the de facto standard server framework for Node.js.