A structured, day-by-day React interview roadmap covering recursion-based UI, complex state modeling, portals, performance tuning, virtualization, and production-ready architecture patterns. Designed to simulate real frontend interviews at product companies.
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Foundation track to build momentum and core interview patterns.
Streak unlock checkpoint to maintain consistent daily practice.
Advanced track with higher complexity, edge cases, and interview depth.
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File explorer is the canonical React interview tree problem.
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Second version is where architecture shows.
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Third version is a great staff-level signal.
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Nested checkbox tests parent/child propagation and indeterminate state.
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Typeahead basics: input → suggestions → selection.
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Second version tests async state and UX edge cases.
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Progress bar series is perfect for time + scheduling + state modeling.
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Hard variants force clean state machines.
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Modals are a11y + focus management signal.
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Hard modal = real production complexity.
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Start with the base table, then layer features.
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Common real-world asks: row selection + CSV export + global search.
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Pick 1–2: virtualization + reordering/resizing = high-signal.
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Capstone set: choose 2 based on time.