Express.js 面接の質問と回答
質問 16. How can you handle CORS in Express.js?
You can handle CORS by using the 'cors' middleware or by manually setting the appropriate headers in the response.
質問 17. What is the purpose of the 'express.Router' class?
The 'express.Router' class is used to create modular, mountable route handlers. It can be thought of as a mini Express application.
質問 18. Explain the concept of 'cookie-parser' middleware in Express.js.
'cookie-parser' is a middleware used to parse cookie headers and populate 'req.cookies' with an object keyed by the cookie names.
質問 19. What is the purpose of the 'helmet' middleware in Express.js?
'helmet' is a middleware that helps secure Express.js applications by setting various HTTP headers to prevent common web vulnerabilities.
質問 20. How can you implement session management in Express.js?
Session management in Express.js can be implemented using middleware like 'express-session' along with a session store.
ユーザー評価で最も役立つ内容:
- How to handle errors in Express.js?
- What is Express.js?
- How to install Express.js?
- What is middleware in Express.js?
- What is the purpose of app.use() in Express.js?