React
Patterns, anti-patterns, interview drills and a 58-lesson code-review companion course.
Courses & tools
React CourseReact Patterns, Good Practices & InternalsReact 19 CourseMobX: Interview PrepReact InterviewsReact ChallengesReact Anti-Patterns
Practice & prepare for interviews
Complete challenge collections. Choose a topic to see every exercise.
🥊 Hook, Line & Syntax — JS & React recall34 challenges 🗒️ Sticky Notes — the take-home, step by step14 challenges React · Components Track23 challenges ⚛️ React Interview Drills — the three traps3 challenges Premium · Headline Picks5 challenges Real-world Pages5 challenges React — Architecture6 challenges React · Mid26 challenges React · Showcase7 challenges React · Find & Fix the Bug7 challenges React · useEffect Bugs18 challenges React · Hooks Bugs15 challenges React — Senior39 challenges TanStack Query · Server state (Senior)8 challenges React Code Review · Checklist course12 challenges