Practice 526+ senior-level questions across 8 categories. Timed sessions, AI grading, and detailed feedback.
526
Total Questions
0
Sessions Completed
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Average Score
Questions Practiced
Fundamental React concepts, JSX, components, virtual DOM, and reconciliation
useState, useEffect, useRef, useMemo, useCallback, custom hooks, and rules
App Router, Server Components, SSR, SSG, ISR, routing, and middleware
Re-renders, memoization, code splitting, virtualization, and Web Vitals
XSS prevention, CSRF, authentication, authorization, and secure storage
DevTools, memory leaks, hydration errors, performance profiling
Redux, Zustand, Context API, TanStack Query, and async state
Folder structure, component patterns, TypeScript, error handling