Node.js quiz

Test your Node.js knowledge with a free interactive quiz — 50 questions with answers and explanations. No signup needed to play.

What does `module.exports` do?

1. What does `module.exports` do?
2. What does `res.json()` do in Express?
3. What is `Buffer` in Node.js?
4. What is the Node.js REPL?
5. What is `async/await` in Node.js?
6. What is `npm ci` vs `npm install`?
7. What is the purpose of `package.json`?
8. What is `process.env`?
9. What is Node.js?
10. What is the difference between `require()` and ES modules `import`?
11. What does `require()` do in CommonJS?
12. What is `npm`?

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