Install NPM packages

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In this tutorial we will learn how to install NPM(https://www.npmjs.com/) and use NPM packages. NPM is by far one of the largest package manager out there, NPM has over 240.000 packages available, free for everyone. • How to use packages from npm: • after you have installed them via `npm install package-name` you are able to use them with require('package-name') • you can use packages if you require them, lets assume we have a `index.js` in the same directory as the `package.json` and you have `express` installed as a dependency, your `index.js` could look something like this: • • // here is how we use an npm package with require • var express = require('express'); • // here we use this package, read the docs of this package • var app = express(); • // create a route, something express specific • app.get('/', function (req, res) { • res.send('Hello, World'); • }); • • // create the server listen to port 3000, something express specific • app.listen(3000); • • If you know execute this file, e.g. `node index.js` you can visit localhost:3000 in your browser and it will respond with 'Hello, World'... • You can use all packages with require('packagename'). If you want to know how to use a specific package, search for it on npm or github and read the docs. • --- • Make sure to check out their websites: • Node.js - https://www.nodejs.org/ • NPM - https://www.npmjs.com/ • Express - https://www.expressjs.com/ • Bootstrap - https://www.getbootstrap.com/ • --- • Follow me on github - https://www.github.com/aichbauer • Follow me on Twitter - / laichbauer

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