This repository contains a comprehensive collection of Full-Stack JavaScript Developer Interview Questions — covering everything from Core JavaScript to React.js, Node.js, Express.js, and database concepts.
Whether you're preparing for a frontend, backend, or full-stack interview, this repo will help you review key topics, concepts, and definitions that interviewers commonly ask.
- Core JavaScript
- Closures, Currying, Hoisting, Event Loop, Prototypes, and more.
- React.js
- Hooks, Lifecycle, Virtual DOM, Props vs State, Performance Optimization.
- Node.js / Express.js
- Event-driven architecture, Middleware, REST APIs, Async handling.
- Full-Stack Concepts
- Authentication, API integration, Databases (MySQL, PostgreSQL, MongoDB), and Deployment.
- Database & Query Optimization
- Indexing, Joins, Pagination, and Query Performance tips.
This repository is maintained by Minahil Hussain to help learners, students, and professionals prepare efficiently for JavaScript-based interviews.
If you find this helpful, please ⭐ star the repository and share it so others can benefit too!
Have a suggestion or found a missing question?
You can open an issue or create a pull request, or simply suggest an edit here:
👉 github.com/minahilhussain/interview-questions/issues
JavaScript Interview Questions, Full Stack JavaScript Interview Prep, React js Interview Questions, Node js Interview Questions, Express js Interview Questions, Frontend Interview Questions, Backend Interview Questions, MERN Stack Interview Questions, Full Stack Developer Questions
This repository is open-source under the MIT License.
⭐ Created and maintained by Minahil Hussain — for learners and developers around the world.