React • Topic Section2 scenarios

Performance & Virtualization

TanStack Virtual v3, dynamic row heights, and URL state with Nuqs

Rendering lists and tables with 100,000+ items: virtual windowing, ResizeObserver height measurements, scroll restoration, and filter serialization to URL.

TanStack Virtual 3Nuqs URL StateWindowing100k+ RowsCore Web Vitals

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0%(0 of 2 completed)

+100 XP~75 min

AI Technical InterviewPractice Senior interview questions

Interactive Lab Outage SimulatorHands-on debugging and incident response

Engineering RoadmapTrack mastery milestones

Practical Section Scenarios

2 scenarios available

Difficulty level:

Senior35 min+50 XP

Virtualizing High-Load Lists and Tables: TanStack Virtual v3, Dynamic Heights, and URL State with Nuqs

Построение виртуализированного интерфейса на 100k+ записей: Windowing алгоритм, динамическая высота строк через ResizeObserver, удержание позиции скролла и сохранение фильтров в URL search params.

React 19TanStack Virtual 3.xTypeScript 5.8+Nuqs 2.x

Production ScenarioOpen workflow

Senior40 min+50 XP

React 19 Profiling and Performance Tuning: React DevTools, Eliminating Wasteful Renders, and INP Optimization

Глубокое руководство по профилированию и оптимизации производительности в React 19: чтение графиков Flamegraph в React DevTools, отладка холостых каскадных ререндеров, разбиение длинных задач (Long Tasks) для удержания метрики INP менее 50 мс и ментальная модель React Compiler.

React 19React DevTools ProfilerPerformance APIscheduler.yield()useTransition

Production ScenarioOpen workflow

Other sections in React

Explore adjacent topics for comprehensive specialization mastery.

All sections

2 scenarios

State Management & Caching

Zustand architecture, persistence, useShallow, and TanStack Query v5

Open section

3 scenarios

Component Architecture & Design Systems

Compound Components, Radix Primitives/Base UI & WAI-ARIA accessibility

Open section