Ace Your Next Tech Interview

Real-world interview questions with detailed, opinionated answers and code — covering technical, system-design and behavioral rounds.

46+ Questions

5 Topics

FAANG-ready

The most-asked JavaScript questions from front-end and full-stack interviews — covering closures, async, prototypes and more.

Always start by clarifying the input/output before coding.
Explain trade-offs out loud — interviewers value reasoning.

Common React questions covering hooks, rendering, performance and architecture.

Explain re-renders precisely: state changes trigger renders, props don't unless parent re-renders.
Know which hook to reach for and why (useMemo vs useCallback vs useRef).

Core DSA questions every developer should be able to discuss — arrays, hashmaps, trees, recursion and complexity.

Always state your assumptions and the brute-force solution first, then optimize.
Discuss time and space complexity for every approach.

Frameworks and key concepts to handle open-ended system design questions for mid-level and senior interviews.

Always start by clarifying functional and non-functional requirements.
Estimate scale (QPS, storage, bandwidth) before drawing components.

Practice answering soft-skill questions with the STAR method — used at almost every company including FAANG.

Use the STAR framework: Situation, Task, Action, Result.
Pick 4-5 stories that you can adapt to many questions.

Brush up the fundamentals

Solid fundamentals make any interview easier. Revisit our language tutorials before deep-diving into questions.

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Stand out with a great README

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