React Fundamentals
JSX, component architecture, props/state data flow, and reconciliation basics.
React interview track: component model, hooks correctness, routing/data patterns, performance, and architecture. Every test has 6 questions: 3 theory + 3 practical coding tasks.
Progression is intentional: fundamentals first, then high-impact engineering decisions for real products.
JSX, component architecture, props/state data flow, and reconciliation basics.
Hook dependencies, stale closure prevention, memoization boundaries, and side-effect discipline.
Route-level loading, transition safety, query-driven UI state, and cache invalidation strategy.
Profiling, memoization tradeoffs, test pyramid strategy, and measurable frontend quality.
Feature boundaries, dependency control, architecture governance, and long-term maintainability.
Obten una experiencia real de entrevista con un mentor experimentado. Recibe retroalimentacion profesional sobre tus respuestas, tu estilo de comunicacion y tus areas de mejora.
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PRO/PREMIUM unlock test hints that help you move faster through difficult topics.
After 100% completion of a specific track, a dedicated PDF certificate becomes available in your profile.
Test duration depends on topic difficulty — from 12 to 26 minutes for Frontend topics, up to 24 minutes for QA and UI/UX topics.
No. Progression is strictly sequential: each topic unlocks only after passing the previous one.
5 topics: React Fundamentals, React State and Hooks, React Routing and Data Patterns, React Performance and Testing, React Architecture Patterns.
Yes. The track goes deep into useEffect dependencies, stale closures, useMemo/useCallback tradeoffs, and custom hook design.
Yes. A dedicated topic covers feature boundaries, dependency governance, and sustainable long-term codebase evolution.