Learn how to use __dirname in Node.js to work with file paths, manage modules, and handle relative directories safely across environments.

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A comprehensive guide to using __dirname in Node.js for reliable file path handling. Covers the differences between __dirname, __filename, and process.cwd(), explains how to safely construct paths using the path module, and shows how to recreate __dirname functionality in ES modules using import.meta.url. Includes practical examples for loading configuration files, serving static assets, managing logs and uploads, plus best practices for cross-platform compatibility and common pitfalls to avoid.

How To Use __dirname in Node.js

Building Safe File Paths with path.join() and path.resolve()