Install Node.js and NPM on a Mac
JavaScript is one of the most popular programming languages in the world. It is built into most web browsers and used to add interactivity to websites. With Node.js, a “JavaScript runtime,” we can now write JavaScript beyond the browser such as a web server or even on hardware like robots. And with NPM, the package manager used with Node, we can install external modules to help speed up our development.
Note: If you’re on a Windows computer, check out my tutorial for How to Install Node.js and NPM on Windows.
The Node.js site has its own installer, but if you’re working on a Mac, you’re far better off using a package manger like Homebrew to install and manage your software packages.
Install Xcode and Homebrew
The first step is to install Xcode, a free software development tool written by Apple. It is used to build Mac and iOS apps and also compile software. You can install XCode from the App Store. It’s a large program so this might take a while.
Once installation is complete, make sure to also install the Xcode Command Line Tools. On your command line, type the following command and hit Return:
xcode-select --install
Note: The command line is a text-only interface frequently used by developers. You can access it via the Terminal application on any Mac. Go to Finder -> Applications -> Utilities -> Terminal to open it.
To install Homebrew, type the following command on the command line and hit Return:
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
You’ll see messages in the Terminal explaining how to complete the installation setup.
Install Node.js and NPM
Now that we have Xcode and Homebrew, installing Node and NPM–and indeed any software in the future–is straightforward. The following steps should only take a few minutes.
Within your Terminal app, type brew install node
. Then sit back and wait: Homebrew will automatically download, unpack, and install the software for us. NPM comes automatically bundled with Node so we only need to install Node itself this way to get both!
- To confirm Node is installed, type
node -v
in Terminal. This will print the version number, which will be something like6.9.5
. - To confirm NPM is installed, type
npm -v
in Terminal. The version number should be something like3.10.10
.
How to Update Node and NPM
Node and NPM are updated constantly so it’s likely your version numbers will vary from mine. Fortunately we can use Homebrew to stay up-to-date with all the software it installs.
- Type
brew update
in Terminal to update Homebrew itself. - Type
brew upgrade node
to upgrade Node.
How to Uninstall Node and NPM
You can also use Homebrew to uninstall software packages it installed. In Terminal type brew uninstall node
to remove it.
Want to improve your JavaScript? I have a list of recommended JavaScript books.