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Built-in React Hooks
5 Units
25 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 3
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Chapter 4
Forwarding Refs in React
Summary
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What is the main purpose of React.forwardRef in relation to useRef?
To pass refs to child components without breaking encapsulation
To handle asynchronous operations in components
To store mutable values that persist across renders
To pass refs to child components without breaking encapsulation
How does forwarding refs help avoid common useRef mistakes?
By managing side effects in functional components
By preventing infinite render loops from state updates
By allowing refs to access DOM elements in wrapped components
By allowing refs to access DOM elements in wrapped components
In a React component hierarchy, when should you use React.forwardRef?
When a parent needs to reference a child's DOM node directly
When a parent needs to reference a child's DOM node directly
To track how many times a component has rendered
To update state without causing re-renders
What potential issue can forwarding refs solve in nested components?
Exposing DOM refs from child to parent components
Exposing DOM refs from child to parent components
Avoiding unnecessary state updates in renders
Managing asynchronous data fetching
How does React.forwardRef integrate with useRef for better component design?
Triggers effects on component mount and unmount
Persists values across component re-renders
Enables passing refs through intermediary components
Enables passing refs through intermediary components
5 questions remaining
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Persisting Values with useRef
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Real-World Project: Implementing Focus Management