Express.js вопросы и ответы для интервью
Вопрос 6. Explain the difference between res.send() and res.json() in Express.js.
res.send() sends a response of various types, while res.json() specifically sends a JSON response.
Вопрос 7. What is Express Router?
Express Router is a middleware that can be used to define modular routes for your application.
Вопрос 8. How to handle errors in Express.js?
You can handle errors in Express.js using middleware with four parameters (err, req, res, next) or using try-catch blocks.
Вопрос 9. What is the purpose of body-parser middleware?
body-parser is used to parse the incoming request bodies in a middleware before the handlers, making it easier to handle form data and JSON payloads.
Вопрос 10. Explain the concept of view engines in Express.js.
View engines are used to render dynamic content. Popular view engines for Express include EJS, Pug, and Handlebars.
Самое полезное по оценкам пользователей:
- How to handle errors in Express.js?
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- What is middleware in Express.js?
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