Express.js
/Beginner
Helmet.js
Definition
Helmet helps secure your Express apps by setting various HTTP headers. It mitigates common web vulnerabilities like Clickjacking, XSS attacks, and MIME-sniffing by wrapping 15 smaller middleware functions.
Explain Like I'm New
Helmet helps secure your Express apps by setting various HTTP headers.
Terminal Output
bash / terminal
$ npm install helmet
// Usage:
// const helmet = require('helmet');
// app.use(helmet());
Interview Questions
basic
- What is the primary purpose of Helmet.js in Express.js?
- How do you initialize Helmet.js?
intermediate
- How does Helmet.js integrate with other middleware components?
- Can you explain a common use case for Helmet.js?
advanced
- What are the performance implications of Helmet.js in a high-traffic production application?
- How would you debug issues related to Helmet.js?
trick
- Is it possible to achieve the same result as Helmet.js without using Express?