Express.js Interviewfragen und Antworten
Test your skills through the online practice test: Express.js Quiz Online Practice Test
Frage 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.
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Frage 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.
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Frage 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.
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Frage 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.
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Frage 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.
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Am hilfreichsten laut Nutzern:
- 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?