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Node.js REPL

How to install Node.js and npm on a Mac using Homebrew

Anton Vasetenkov
Web, data, bio, language.
Node.js

Homebrew is a package manager for macOS. This guide will help you install Node.js and npm using a Homebrew formula.

You will need to have Homebrew installed. For the instructions on how to install Homebrew, head over here.

Step 1. Update Homebrew

Run

brew update

It is recommended that you always update Homebrew before installing new formulae. Homebrew will also try to update automatically every time you install new formulae, but you can disable that by setting HOMEBREW_NO_AUTO_UPDATE=1.

Step 2. Install Node.js

Run

brew install node

npm will be installed together with Node.js.

Step 3. Check your installation

Run

node

This will open the Node.js REPL. Execute a sample script, e.g.

function fib(n) {
    if (n < 3) {
        return 1
    }

    return fib(n - 1) + fib(n - 2)
}

fib(18)
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