FS Module Synchronous Methods — a practical guide to fs sync Node.js with clear examples you can reuse in real projects.
FS Module Synchronous Methods — 12/55 in the Node.js series. Full playlist companion: Node.js complete course on YouTube. Prefer one article? Read the complete Node.js tutorial.
Short description
Sync methods like `readFileSync` block the event loop until finished. Fine for small CLI scripts; avoid them in high-traffic servers.
Synchronous FS
const fs = require('fs');
fs.writeFileSync('notes.txt', 'Learn Node.js');
const data = fs.readFileSync('notes.txt', 'utf8');
console.log(data);