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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 2•Chapter 4

Running Effects on Component Updates

Summary

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Concept Check

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In React, what parameter allows useEffect to run conditionally?

How does componentDidUpdate differ from useEffect in execution?

What issue arises from running useEffect on every render?

In class components, how is conditional update achieved in componentDidUpdate?

What must be checked in componentDidUpdate to update title conditionally?

PreviousFetching Data with useEffect
NextReal-World Project: Creating a Timer Application