React

This document explains how to connect React applications to external services using APIs, including data fetching with Fetch API and Axios, error handling and best practices for integrating third-party platforms.

This document explains the use of useEffect and custom hooks in React including how to manage side effects, dependency arrays, and create reusable logic for function components.

This document explains the purpose, advantages, and best practices of using Hooks in React, including standard and custom hooks for managing state, side effects, and reusable logic in function components.

This document provides a concise summary of React concepts covered in Module 2, including arrays, virtual DOM, component styling, and key glossary terms for building dynamic and maintainable user interfaces.

This document explains different ways to apply styles in React, including inline styles, CSS modules, and styled-components, with examples and best practices for component styling.

This document explains the concept of the virtual DOM in React, its working mechanism, advantages, and how it differs from the normal DOM, with practical examples and performance insights.

This document explains how to declare, traverse, and manage arrays in React components, including state management, rendering lists, and common array methods.

This document explains the principles, approaches, and tools for testing React components, including unit and end-to-end testing, Arrange-Act-Assert, and libraries like Jest and React Testing Library.

This document explains the four phases of the React function component lifecycle—mounting, updating, unmounting, and error handling—using hooks and practical examples.

This document explains state management in React function components, focusing on the useState hook, syntax, and practical examples for dynamic UI updates.

This document explains the principles and practical use of component composition in React, including abstraction, reusability, hierarchy, props children, and higher-order components.

This document explains how props and event handling work in React function components, covering data flow, default props, customization, and conditional rendering.

This document provides a concise summary of React component types, state and props, event handling, and the component lifecycle, highlighting their roles in building modular and interactive user interfaces.