React for Node.js Backend Engineers
A comprehensive course designed for Node.js backend engineers to master React and transition to full-stack development.
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Introduction to React and its Ecosystem
Unit 1: React: Core Concepts
React: A brief history
What is React?
Why use React?
React's Key Principles
React's Virtual DOM
Unit 2: React Ecosystem Overview
JSX: Syntax Extension
Component Libraries
State Management
React Router
Testing Libraries
Unit 3: Setting Up Your Environment
Node.js & npm
Create React App
VS Code Extensions
Hello, React!
DevTools
React Fundamentals: JSX and Virtual DOM
Unit 1: JSX: The Basics
JSX: What & Why?
JSX Syntax: HTML in JS
JSX Expressions
JSX Gotchas
JSX in Practice
Unit 2: Virtual DOM: Under the Hood
The Real DOM
Virtual DOM: The Idea
How Virtual DOM Works
Benefits of Virtual DOM
Virtual DOM vs. Real DOM
Unit 3: Your First React Component
Setting Up Your Project
Hello, React!
Props in Your Component
Styling Your Component
Component Composition
Component-Based Architecture
Unit 1: Understanding Component-Based Architecture
What is a Component?
Why Components?
Component Composition
Thinking in Components
Components & Abstraction
Unit 2: Building Reusable Components
Small & Focused
Single Responsibility
Naming Conventions
Props as Configuration
Documenting Components
Unit 3: Component Composition Techniques
Children Prop
Higher-Order Components
Render Props
Composition vs. Inheritance
Context for Composition
Functional Components and Props
Unit 1: Introduction to Functional Components
Functional Components
Arrow Functions
Component Reusability
First Functional Component
JSX in Components
Unit 2: Props in Functional Components
Props: Intro
Passing Props
Rendering Props
Default Props
Props are Read-Only
Unit 3: Advanced Props and Immutability
Prop Types
Children Prop
Spreading Props
Immutability Explained
Immutability Techniques
Class Components and State
Unit 1: Introduction to Class Components
What are Class Components?
Creating a Class Component
Rendering Class Components
Props in Class Components
Default Props
Unit 2: Managing State in Class Components
Introduction to State
Initializing State
Updating State
State and Re-rendering
Props vs. State
Unit 3: Advanced State Management and Best Practices
Passing State as Props
Binding Event Handlers
State Immutability
setState() Gotchas
When to Use Classes
Event Handling in React
Unit 1: Introduction to Event Handling
What are React Events?
Synthetic Events Explained
Event Attributes in JSX
Unit 2: Basic Event Handling
Handling Click Events
Handling Input Changes
Controlled Components
Uncontrolled Components
Unit 3: Advanced Event Handling
Binding Event Handlers
Passing Arguments
Event Propagation
Event Delegation
Unit 4: Form Events and Handling
Handling Form Submission
Form Validation
preventDefault Explained
Conditional Rendering
Unit 1: Introduction to Conditional Rendering
What is Cond. Rendering?
Cond. Rendering Approaches
Rendering Based on State
Unit 2: If/Else Statements in React
If/Else: The Basics
If/Else Outside JSX
When to Use If/Else
Unit 3: Ternary Operator
Ternary Operator Basics
Nesting Ternary Operators
Ternary Operator Best Use
Unit 4: Logical AND Operator
Logical AND: The Basics
AND for Simple Conditions
AND Operator Pitfalls
Unit 5: Advanced Conditional Rendering
Preventing Rendering
Conditional CSS Classes
Best Practices
List Rendering
Unit 1: Basic List Rendering
Intro to List Rendering
Rendering a Simple List
Rendering List of Objects
Dynamic List Generation
Lists in Functional Components
Unit 2: Keys and Optimization
The Importance of Keys
Using Unique Keys
When Index is Okay
Keys and Component State
Keys and Performance
Unit 3: Advanced List Rendering Techniques
Conditional List Items
Lists of Components
Nested Lists
Empty State Handling
Optimizing Large Lists
Component Lifecycle with useEffect
Unit 1: Understanding the Component Lifecycle
React Component Lifecycle
Mounting Phase Deep Dive
Updating Phase Explained
Unmounting Phase Details
Lifecycle Methods Recap
Unit 2: Introducing the useEffect Hook
What is useEffect?
useEffect on Mount
useEffect on Update
useEffect Cleanup
useEffect Dependencies
Unit 3: Fetching Data with useEffect
Fetching Data Intro
Handling Loading States
Handling Errors
Displaying Fetched Data
useEffect Data Fetching
State Management with useState
Unit 1: Introduction to useState
Why State Management?
What is useState?
Importing useState
Declaring State Variables
Initial State Values
Unit 2: Updating State
The Setter Function
Updating with New Values
Functional Updates
Why Functional Updates?
Batching State Updates
Unit 3: Immutability and useState
What is Immutability?
Immutably Updating Objects
Immutably Updating Arrays
Pitfalls of Mutability
Deep Dive: Object.assign
Context API for Global State
Unit 1: Introduction to Context API
Global State Problems
Context API: The Solution
Context API vs. Redux
Unit 2: Creating and Providing Context
Creating a Context
The Context Provider
Provider Scope
Unit 3: Consuming Context Values
useContext Hook
When Context Changes
Unit 4: Advanced Context Patterns
Updating Context Values
Combining Contexts
Context for Theming
Unit 5: Context API with TypeScript
Typing Context Values
Typing Provider Values
Custom Context Hook
Custom Hooks
Unit 1: Introduction to Custom Hooks
What are Custom Hooks?
Why Use Custom Hooks?
Rules of Hooks
Unit 2: Creating Your First Custom Hook
Basic Custom Hook
Sharing State Logic
Sharing Side Effects
Unit 3: Advanced Custom Hook Techniques
Accepting Parameters
Returning Functions
Using Multiple Hooks
Unit 4: Real-World Custom Hook Examples
useFetch Hook
useLocalStorage Hook
useWindowSize Hook
Unit 5: Best Practices and Advanced Patterns
Naming Conventions
Testing Custom Hooks
When NOT to Use Hooks
Form Handling in React
Unit 1: Introduction to Forms in React
Forms: The React Way
Setting Up Your First Form
Initial Form State
Unit 2: Controlled Components in Depth
Linking State to Inputs
onChange Event Explained
Handling Multiple Inputs
Unit 3: Form Submission and Validation
Submitting the Form
Basic Validation
Real-time Validation
Regex Validation
Unit 4: Advanced Form Techniques
Handling Checkboxes
Radio Button Groups
Select Dropdowns
File Upload Basics
Resetting the Form
React Router Fundamentals
Unit 1: Introduction to React Router
SPA Navigation Intro
React Router: The Basics
Choosing a Router Type
Unit 2: Setting Up React Router
Install React Router
Wrap App with Router
Basic Route Definition
Creating the Home Page
Unit 3: Navigating Between Pages
Using the Link Component
Creating an About Page
Creating a Contact Page
Navigation Bar
Unit 4: Advanced Routing Techniques
The Switch Component
No Match Route
Route Exact Path
Advanced Routing Techniques
Unit 1: Deep Dive into Nested Routes
Intro to Nested Routes
Setting Up Nested Routes
Rendering Child Routes
Advanced Nesting
Relative Links
Unit 2: Mastering Dynamic Route Parameters
Intro to Route Params
Defining Route Params
Accessing Route Params
Type Safety with Params
Validating Route Params
Unit 3: Programmatic Navigation and Authentication
Intro to useHistory
Navigating with History
Authentication Flows
Protecting Routes
Auth Context Integration
Styling React Components with CSS Modules
Unit 1: Introduction to CSS Modules
CSS-in-JS Alternatives
What are CSS Modules?
CSS Modules: Under the Hood
Unit 2: Setting Up CSS Modules in React
Project Setup
CSS Module File Structure
Importing CSS Modules
Unit 3: Styling with CSS Modules
Basic Styling
Dynamic Class Names
Composition with CSS
Global Styles
Unit 4: Advanced CSS Modules
Theming with CSS Vars
Animations and Keyframes
Preprocessors
Gotchas and Best Practices
Styling React Components with Styled Components
Unit 1: Introduction to Styled Components
Styled Components: Intro
Installation & Setup
Your First Styled Comp
Styling with Props
Extending Styles
Unit 2: Advanced Styled Components Techniques
Global Styles
Theming: Setup
Theming: Usage
Animations
Media Queries
Unit 3: Best Practices and Integration
With TypeScript
SSR Considerations
Testing Styled Components
Performance Tips
Migration Strategies
Fetching Data from APIs
Unit 1: Introduction to API Fetching in React
Why Fetch in React?
Fetch vs. Axios
Setting Up a Dev API
Your First Fetch Request
Displaying Fetched Data
Unit 2: Advanced Fetching Techniques
Handling Loading States
Error Handling
POST Requests with Fetch
PUT/PATCH Requests
DELETE Requests
Unit 3: Using Axios for API Requests
Axios Setup
GET Requests with Axios
Axios Error Handling
Axios Request Config
Axios POST/PUT/DELETE
Displaying Data in React Components
Unit 1: Basic Data Display
Rendering Text Data
Rendering Numbers
Rendering Booleans
Rendering Dates
Rendering Images
Unit 2: Advanced Data Display
Rendering Arrays
Rendering Objects
Handling Missing Data
Data Transformation
Displaying HTML Content
Unit 3: Data Presentation Techniques
Tables
Lists
Cards
Tooltips
Progress Indicators
Debugging React Applications
Unit 1: Introduction to Debugging React
Why Debugging Matters
Debugging Tools Overview
Setting Up React DevTools
Unit 2: React Developer Tools Deep Dive
Components Tab
Inspecting Props
Examining State
Modifying Props and State
Profiling Components
Unit 3: Common React Errors and Debugging Techniques
Syntax Errors
Type Errors
Logic Errors
Infinite Loops
Network Errors
Unit 4: Advanced Debugging Strategies
Breakpoints
Conditional Breakpoints
Testing React Components
Unit 1: Introduction to Testing React
Why Test React Apps?
Testing Tools: Jest & RTL
Setting Up Your Test Env
Unit 2: Writing Your First Tests
Your First Test
Querying Elements
Testing Text Content
Unit 3: Testing Component Behavior
Simulating User Events
Testing Form Inputs
Testing Props
Testing State
Unit 4: Advanced Testing Techniques
Mocking Modules
Snapshot Testing
Testing Custom Hooks
Async Testing
Code Coverage
React Best Practices and Optimization
Unit 1: Code Structure and Maintainability
Project Structure
Component Composition
Code Style Guides
Comments and Docs
Unit 2: Performance Optimization Techniques
Profiling with DevTools
Memoization
Virtualization
Code Splitting
Image Optimization
Unit 3: Common Bottlenecks and Solutions
Unnecessary Re-renders
Large Component Trees
Inefficient Data Fetching
Memory Leaks
Bundle Size Optimization