Setting Up the Development Environment: Installing Node.js and npm for Angular

Published: 2024-08-15

Category: Angular

Read time: 3 min

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In the previous chapter, we explored an overview of Angular and its application scenarios. Today, many modern web applications are built using the Angular framework. To begin Angular development smoothly, the first step is to set up your development environment. This article focuses on installing Node.js and npm.

What Is Node.js?

Node.js is an open-source JavaScript runtime environment that enables you to execute JavaScript code on the server side. Built upon Chrome’s V8 JavaScript engine, Node.js makes server-side JavaScript applications highly efficient and performant. Angular relies on Node.js for compilation and build tasks, and its built-in package manager—npm (Node Package Manager)—is essential for managing JavaScript libraries and dependencies.

Why Install npm?

npm is the default package manager for Node.js. It provides developers with a convenient way to download, install, update, and manage project dependencies. With npm, you can easily install, upgrade, or remove libraries—greatly simplifying dependency management. Creating and developing Angular projects typically depends on npm to install required packages.

Installation Steps

Below, we detail how to install Node.js and npm on different operating systems.

Windows

Download Node.js
- Visit the official Node.js website and download the installer suitable for your system (we recommend the LTS version).
Install Node.js
- Double-click the downloaded installer and follow the setup wizard. Be sure to select the “Add to PATH” option so that the node and npm commands are available in your terminal.

Verify the Installation

Open Command Prompt or PowerShell, then run the following commands:
```
node -v
npm -v
```
If successful, both commands will return their respective version numbers.

macOS

Install Homebrew (Recommended)
- Homebrew is macOS’s popular package manager and offers a safe, convenient way to install Node.js. Run the following command in Terminal:
```
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
```
Install Node.js via Homebrew
- After Homebrew is installed, run:
```
brew install node
```
Verify the Installation
- As with Windows, run the following in Terminal:
```
node -v
npm -v
```

Linux

Install Using Your Distribution’s Package Manager
- Different Linux distributions use different package managers. For example, on Ubuntu, run:
```
sudo apt update
sudo apt install nodejs npm
```
Verify the Installation
- Run:
```
node -v
npm -v
```

Installing Common Tools

If you plan to use the Angular CLI (Command-Line Interface), you can install it globally via npm after Node.js and npm are successfully installed. We’ll cover Angular CLI installation and usage in detail in the next chapter.

To install the Angular CLI, run:

npm install -g @angular/cli

The -g flag indicates a global installation, enabling you to use the ng command from any directory.

Conclusion

You’ve now successfully installed Node.js and npm, and verified their functionality. This forms the foundational setup required for learning and working with the Angular framework. In the upcoming chapter, we’ll dive into installing the Angular CLI and creating your first Angular application—stay tuned!

We hope this section helps you establish a solid development environment for Angular. Should you encounter any issues during installation, consult the official documentation or search for community-supported solutions.

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