express hello world
//to run : node filename.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 at http://localhost:${port}`))
//visit localhost:3000
// assuming you have done 1) npm init 2) npm install expresssample express app
const express = require('express')
const app = express()
const port = 3000
app.get('/', (req, res) => res.send('Hello World!'))
app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`))create node project
#1. server.js
var express = require('express');
var app = express();
app.get('/', function (req, res) {
res.status(200).send('Hello World!');
});
var port = process.env.PORT || 3000;
var server = app.listen(port, function() {
console.log('Express server listening on port ' + port);
});
open cmd run server.js
"node server.js"
log:Express server listening on port 3000
& then
open link "http://localhost:3000/" in your browser and show result.node app create
using command line >>>
npm init
open text editor create a js file. for example like index.js and paste following code.
>>>
const http = require('http');
const hostname = '127.0.0.1';
const port = 3000;
const server = http.createServer((req, res) => {
res.statusCode = 200;
res.setHeader('Content-Type', 'text/plain');
res.end('Hello World');
});
server.listen(port, hostname, () => {
console.log(`Server running at http://${hostname}:${port}/`);
});
----
run using
node app.jsCopyright © 2021 Codeinu
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