Setting Up NPM and package json | Web Development Tutorial

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Node.js makes it possible to write applications in JavaScript on the server. It’s built on the V8 JavaScript runtime and written in C++ — so it’s fast. Originally, it was intended as a server environment for applications, but developers started using it to create tools to aid them in local task automation. Since then, a whole new ecosystem of Node-based tools (such as Grunt, Gulp and Webpack) has evolved to transform the face of front-end development.
To make use of these tools (or packages) in Node.js we need to be able to install and manage them in a useful way. This is where npm, the Node package manager, comes in. It installs the packages you want to use and provides a useful interface to work with them.

In this article I’m going to look at the basics of working with npm. I will show you how to install packages in local and global mode, as well as delete, update and install a certain version of a package. I’ll also show you how to work with package.json to manage a project’s dependencies. If you’re more of a video person, why not sign up for SitePoint Premium and watch our free screencast: What is npm and How Can I Use It?.

But before we can start using npm, we first have to install Node.js on our system. Let’s do that now…
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