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Built-in React Hooks

5 Units25 Lessons
Unit 1

State Hooks

Real-World Project: Building a Counter Application
Introduction to useState Hook
Basic Usage of useState
Updating State with useState
Handling Complex State with useState
Unit 2

Effect Hooks

Introduction to useEffect Hook
Managing Dependencies in useEffect
Fetching Data with useEffect
Running Effects on Component Updates
Real-World Project: Creating a Timer Application
Unit 3

Ref Hooks

Basics of useRef Hook
Using useRef for DOM Access
Persisting Values with useRef
Forwarding Refs in React
Real-World Project: Implementing Focus Management
Unit 4

Context Hooks

Creating Context Providers
Consuming Context in Nested Components
Real-World Project: Building a Theme Switcher
Using useContext Hook
Understanding React Context
Unit 5

Performance Hooks

Using useCallback for Function Memoization
Preventing Unnecessary Re-renders
Introduction to useMemo Hook
Real-World Project: Optimizing a List Rendering Component
Memoizing Expensive Calculations
Unit 4•Chapter 1

Creating Context Providers

Summary

The React Context API is a method to store and access data across components without prop drilling. Prop drilling involves passing data through multiple nested components via props, leading to messy and hard-to-maintain code. For instance, a user object is passed from a parent component to Dashboard, which then forwards it to Sidebar and Profile. Context allows this data to be globally accessible, enabling components to retrieve it directly and avoid lengthy prop chains.

Concept Check

0/5

What is required to make context data available to nested components?

How does the Context Provider avoid prop drilling?

In React, what prop is essential for a Context Provider?

What happens if you forget to wrap components in a Provider?

Which function creates a context for a Provider?

NextConsuming Context in Nested Components