Install node and npm code example

Example 1: update npm for laptop

npm install -g npm@latest

Example 2: install npm globally

npm install npm@latest -g

Example 3: intall npm

npm install -g npm

Example 4: install node in nvm

// Ex:
nvm install v12.13.1

Example 5: nodejs install

var http = require('http');

http.createServer(function (req, res) {
    res.writeHead(200, {'Content-Type': 'text/html'});
    res.end('Hello World!');
}).listen(8080);