Скачать или смотреть React.js Interview Preparation | Full Syllabus + 7-Phase Roadmap (With AI Edge)

00:00 – Intro
00:43 – Syllabus
2:15 – Bucket List
2:50 – 7 Phases
6:36 – AI in Frontend
7:04 – Daily Routine
7:36 – Outro

Frontend Developer Interview Syllabus
1. Core Foundations
JavaScript (ES6+ & Beyond)
• Variables: let, const vs var
• Arrow functions & this binding
• Template literals
• Destructuring (arrays, objects)
• Spread/rest operators
• Modules (import/export)
• Promises & async/await
• Event loop, call stack, microtasks/macrotasks
• Closures & lexical scope
• Prototypes & inheritance
• Call, apply, bind
• Debounce, throttle, curry
• Array methods: map, filter, reduce, flat, forEach
• Big-O analysis of common patterns
TypeScript
• Basic types (string, number, boolean, union, intersection)
• Type inference & type assertions
• Interfaces vs Types
• Generics
• Enums
• Modules in TS
• React + TS → props, state, hooks with types
• Converting JS code → TS
CSS & Styling
• Box model
• Positioning (absolute, relative, fixed, sticky)
• Flexbox (all properties, common layouts)
• Grid (2D layouts, grid-template, grid-auto)
• Animations & transitions
• Media queries & responsiveness
• Tailwind CSS (utility-first, custom configs)
• Bootstrap basics
Git & Version Control
• Repos, branches, commits
• Merge vs rebase
• Resolving conflicts
• Pull requests & reviews
• Git workflows (feature branch, GitFlow, trunk-based)
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2. React + State Management
React Core
• Functional components & JSX
• React 18 features (automatic batching, Suspense, concurrent rendering)
• Hooks:
o useState, useEffect, useRef
o useReducer, useMemo, useCallback
• Context API
• Error boundaries
• Component lifecycle in function components
State Management
• Redux Toolkit: store, slices, dispatch, async thunks
• RTK Query → data fetching, caching
• Compare with React Query
Forms & Validation
• Controlled vs uncontrolled components
• Custom hooks for form state
• Formik basics (validationSchema, touched, dirty)
• React Hook Form (resolver, Zod/Yup)
• Async validation (e.g., username availability)
Next.js
• Pages vs App Router (Next 13+)
• Server Components vs Client Components
• Data fetching: SSR, SSG, ISR
• API routes
• Image optimization
• Deployment on Vercel
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3. APIs + Backend Awareness
REST APIs
• HTTP methods (GET, POST, PUT, PATCH, DELETE)
• Status codes (200, 400, 401, 403, 500)
• Headers & cookies
• Pagination, filtering, sorting
• JWT authentication (localStorage vs cookies)
• OAuth basics
GraphQL
• Queries, mutations, resolvers
• Apollo Client setup in React
• GraphQL vs REST — trade-offs
MongoDB Basics
• Documents & collections
• CRUD operations
• Indexes & aggregation basics
• Mongoose (schema, model, connection)
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4. Advanced Frontend
Testing
• Jest basics (describe, it, expect)
• React Testing Library (render, fireEvent, screen)
• Mocking APIs in tests
• Testing forms (input changes, validation, submission)
Performance
• Code splitting, lazy loading
• Memoization (useMemo, useCallback, React.memo)
• Virtualization (react-window, react-virtualized)
• Core Web Vitals: LCP, CLS, FID
Security
• XSS, CSRF, CORS
• Content Security Policy (CSP)
• JWT storage best practices (httpOnly cookies vs localStorage)
Charts & Visualization
• Chart.js basics
• Integrating with React
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5. CS & System Design
DSA for Frontend
• Arrays & strings (reverse, rotate, sliding window)
• Hashmaps & sets (frequency counting, uniqueness)
• Stack & queue
• Recursion basics
• BFS & DFS (trees, graphs basics)
• Sorting (merge sort, quicksort basics)
• Searching (binary search, variations)
Frontend System Design
• Component-driven architecture
• Scaling React apps (folder structure, modularity)
• State mgmt trade-offs (Redux vs Context vs Query)
• Micro-frontends (overview)
• Real-time apps (WebSockets intro)
• Storybook (UI documentation)
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6. Final Prep
Mock Interviews
• Live coding with JS + React
• Frontend design case studies
• Behavioral Qs (STAR method)
DevOps Basics
• CI/CD pipelines
• Deployment (Vercel, Netlify)
• Env variables & secrets management
Agile Basics
• Scrum ceremonies (daily standup, sprint planning, retro)
• Kanban basics
• Roles: PO, SM, Dev team
Soft Skills
• Explain trade-offs clearly
• STAR storytelling for resume projects
• Handling behavioral/managerial questions
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7. Bonus (Optional)
• React Query (TanStack Query)
• PWAs (service workers, offline mode, installability)
• Accessibility (ARIA roles, screen readers, semantic HTML)
• WebSockets (chat, notifications)
• GenAI tools in frontend workflow (Copilot, ChatGPT for test cases, boilerplate, mock data)

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