If you have Node.js installed, it should output Node’s version. To check whether you already have Node installed, open new terminal window and type: However, this tutorial will cover everything you need to know and hopefully will get you up to speed in no time! It doesn’t assume any background knowledge of JavaScript (although it doesn’t hurt to have some!). This post is intended for complete beginners to JavaScript or for folks switching from Ruby or Python to JavaScript for their backend production. How to switch between different Node.js versions using nvm This is by far the best method to set up Node.js on your system because it gives you control and flexibility when hopping between different projects and their requirements. How to install Node.js and NPM using Node Version Manager, or nvm for short. How to install Node.js and NPM using homebrew, arguably the most popular package manager for macOS How to install Node.js and NPM using the macOS installer available from the Node.js website In this post, we'll learn how to install Node.js and Node Package Manager (NPM) in a macOS environment.īy the end of this tutorial you will have a good grasp on the following: It provides a command line utility tool to install Node.js libraries and manage their versions and dependencies. If you’ve ever used other programming languages, such as Ruby or Python, then you’ll notice that npm is analogous to rubygems in Ruby or pip / poetry in Python. npm is a package management framework for Node.js. When using Node.js, you’ll also need to use Node Package Manager, or npm for short.

However, you can also use Node.js to build your private blockchain. Node.js therefore shines in building fast, data-intensive, and real-time network applications, such as Uber and PayPal.

You can see a great example of asynchronous programming in Node.js here.

Basically, this means that a Node-based server does not wait for an API to return data. The main thing to remember is that Node.js is asynchronous and event-driven, which means it can support hundreds of simultaneous calls in the event loop. Node.js is an open-source runtime environment, which allows developers to create networked applications and web-servers in JavaScript. A simple guide on how to set up Node.js development environment on macOS.

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