React Interview Prep for Senior Engineers

Intro to JSX and Components

30 min · JSX, React components

Props and State Management

30 min · props, state

Lifecycle Methods

30 min · lifecycle methods, componentDidMount

Handling Events in React

30 min · event handling, synthetic events

Higher Order Components (HOCs)

30 min · HOCs, code reuse

Render Props Pattern

30 min · render props, component logic

Context API for State Management

30 min · Context API, global state

React Hooks

30 min · useState, useEffect

React Memoization Techniques

30 min · memoization, React.memo

Lazy Loading Components

30 min · lazy loading, React.lazy

Code Splitting

30 min · code splitting, dynamic imports

Using Profiler API

30 min · Profiler API, performance analysis

Introduction to Testing in React

30 min · testing, Jest, React Testing Library

Testing with React Testing Library

30 min · React Testing Library, user interactions

Snapshot Testing

30 min · snapshot testing, UI changes

Mocking and Spying

30 min · mocking, spying, dependency isolation

Fetching Data Asynchronously

30 min · fetch API, asynchronous requests

Submitting Data to an API

30 min · HTTP POST, form submission

Handling API Responses and Errors

30 min · error handling, promise chaining

WebSockets for Real-time Updates

30 min · WebSockets, real-time applications

Custom Hooks

30 min · custom hooks, logic reuse

Portals for Modals and Overlays

30 min · portals, modals

Error Boundaries

30 min · error boundaries, error handling

Server-side Rendering (SSR)

30 min · SSR, Next.js