Node.js Environment Setup - Installing LTS via NVM, NPM & VS Code Configuration

Setting up a clean, professional Node.js development environment is the foundation of every backend developer's journey. In this tutorial, you will install Node.js Long Term Support (LTS) using Node Version Manager (NVM), verify your NPM installation, and configure Visual Studio Code with the best developer extensions.

Method 1: Installing via NVM (Recommended for Developers)

Directly downloading an installer from nodejs.org often causes permission errors when installing global tools and makes it difficult to test projects requiring different Node versions. NVM solves this cleanly.

On Windows (using nvm-windows):

1. Download the latest installer from the official repository: github.com/coreybutler/nvm-windows/releases.
2. Run nvm-setup.exe and follow the standard installation wizard.
3. Open PowerShell or Command Prompt and install the latest LTS release:

   nvm install lts
   nvm use lts

On macOS and Linux:

# Download and install nvm via curl
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.1/install.sh | bash

# Reload your shell profile (.bashrc or .zshrc)
source ~/.bashrc

# Install and activate the latest active LTS version
nvm install --lts
nvm use --lts

Verifying Your Node.js and NPM Installation

Run the following verification commands in your terminal:

node --version
# Output: v22.11.0 (or current LTS)

npm --version
# Output: 10.9.0 (or current version)

npx --version
# Output: 10.9.0

Configuring Visual Studio Code for Node.js

Visual Studio Code is the gold-standard editor for JavaScript and Node development. Install the following essential extensions from the VS Code Marketplace:

• ESLint: Automatically enforces clean code standards and catches syntax bugs in real-time.
• Prettier - Code Formatter: Keeps indentation, semicolons, and code aesthetics consistent across your team.
• REST Client: Allows testing HTTP endpoints directly inside .http files without needing third-party Postman software.
• DotENV: Syntax highlighting for .env environment variable files.

Creating a VS Code Debugging Profile (launch.json)

To debug Node.js code with breakpoints instead of relying solely on console.log, create a .vscode/launch.json file in your project root:

{
  "version": "0.2.0",
  "configurations": [
    {
      "type": "node",
      "request": "launch",
      "name": "Launch Program",
      "skipFiles": ["<node_internals>/**"],
      "program": "${workspaceFolder}/index.js",
      "restart": true,
      "console": "integratedTerminal"
    }
  ]
}