02 — File System & Path

Core Concepts

• fs/promises — async file operations (recommended)
• fs (sync) — readFileSync, writeFileSync — blocks the event loop
• path — cross-platform path manipulation
• Reading — readFile, readdir, stat
• Writing — writeFile, appendFile, mkdir, rm
• Watching — fs.watch for file change detection
• Streams — efficient for large files (covered in topic 03)