Frontend Engineering
Modern, responsive interfaces with React and TypeScript. Component architecture, state management, and API integration.
Beginner
React Core Fundamentals: JSX, Components, State & Props
Master React's foundational concepts — JSX, Virtual DOM, class vs functional components, props, state, and lifecycle — with real-world examples from production apps.
React Development Environment Setup: Vite, VS Code & Tooling (2026)
Set up a professional React development environment from zero — Node.js, package managers, Vite vs Next.js, VS Code extensions, ESLint, Prettier, path aliases, and Git hooks.
React Interview Questions: Junior Level (0–2 Years)
50 React interview questions with detailed answers for junior developers — JSX, components, props, state, hooks basics, and lifecycle. Includes what interviewers really want to hear.
Intermediate
React Forms & Validation: React Hook Form + Zod in Production
Build bulletproof forms with React Hook Form and Zod — schema validation, nested fields, file uploads, multi-step forms, async validation, and accessibility best practices.
React Hooks Deep Dive: useState, useEffect, useCallback, useMemo & Custom Hooks
A complete guide to React hooks with real-world patterns — from basic useState to writing production-grade custom hooks for data fetching, forms, and UI state.
React Internationalization (i18n): react-i18next & Multi-Language Apps
Build production-ready multilingual React apps — setting up react-i18next, handling translations, pluralization, date/number formatting, RTL layouts, and lazy-loading locale files.
React Interview Questions: Mid-Level (2–4 Years)
40 React interview questions with answers for mid-level developers — hooks deep dive, performance, patterns, routing, Redux, testing, and TypeScript. What senior interviewers probe for.
Build a Full-Stack Task Manager App with React, TypeScript & React Query
Step-by-step project tutorial — build a production-quality task manager from scratch: authentication, CRUD operations, drag-and-drop, filtering, optimistic updates, and deployment.
React State Management: Redux Toolkit, Context & Zustand
When and how to use Redux — from vanilla Redux patterns to Redux Toolkit (RTK), RTK Query for data fetching, and when simpler alternatives like Zustand or Context are better.
React Router Complete Guide: Navigation, Nested Routes & Protected Routes
Master React Router v6+ — client-side routing, nested routes, dynamic segments, protected routes, data loading, and programmatic navigation with real app examples.
React Testing: Jest, React Testing Library & Best Practices
Write tests that actually catch bugs — unit, integration, and user interaction testing with Jest and React Testing Library, including async testing, mocking, and CI strategies.
TypeScript with React: Types, Generics & Production Patterns
Master TypeScript in React — prop typing, event handlers, generic components, discriminated unions, utility types, and patterns that eliminate runtime errors before they happen.
Advanced
React Advanced Patterns: HOCs, Context, Compound Components & Performance
Production-ready React patterns — Higher Order Components, Context architecture, compound components, React.memo, code splitting, and Suspense with real app examples.
React Interview Questions: Senior Level (4+ Years)
30 advanced React interview questions with in-depth answers for senior developers — Fiber architecture, concurrent rendering, RSC, design systems, performance profiling, and system design.
React Performance Optimization: Profiling, Memoization & Concurrent Features
Identify and fix real React performance bottlenecks — using the Profiler, fixing unnecessary re-renders, virtualization for large lists, Web Vitals, and React 18 concurrent features.