Component Composition with children Prop

Render Prop Rendered as Element

Container Forgets to Pass Data

PropTypes and TypeScript for Type Safety

Immutability in State Updates

Separating Business Logic from UI

Small Single-Responsibility Components

Naming Conventions for Components and Files

Folder and File Organization Strategies

Three React Anti-Patterns to Avoid

Deriving State Instead of Duplicating

Colocating State Near Usage

React.memo for Component Memoization

Compound Component Pattern

Proper Use of Keys in Lists

Conditional Rendering Best Practices

Lifting State Up

Container vs Presentational Components

Fragments Avoid Wrapper Divs

Accessibility in Component Design

Inline Functions in Render

Error Boundaries

Immutable State Updates

Colocating State

Deriving State Instead of Duplicating

Single Responsibility Components

Component Folder Structure

Composition over Inheritance

Prop Drilling and Context

Lifting State Up

Controlled vs Uncontrolled Inputs

Compound Components Pattern

Render Props Pattern

Higher-Order Components Basics

Higher-Order Components (HOCs)

Container/Presentational Pattern

HOC Swallows the Props

Compound Component Loses Context

Controlled Input Without onChange

Lifting State That Stayed Local

Prop Drilling Passes Wrong Name

Composition Ignores Children

Barrel Export Missing the Component

State Lifted Too High

Component Doing Too Much

Modal Rendered Without a Portal

Wrong PropType for Callback

Fragment Loses the Key

List Key on the Wrong Element

Card Component Ignores Children

Lazy Component Without Suspense

Error Boundary as a Function

Derived Value Stored in State

Inline Object Defeats Memoization

React.memo That Never Memoizes

Zero Leaks Into the UI

Provider Pattern for Shared State

Default Props and Prop Validation

Fragments to Avoid Wrapper Nodes

Extracting Reusable UI Components

Prop Drilling and Avoiding It

Lifting State Up

Colocating State

React.memo Best Practices

Compound Components Pattern

Deriving State

Prop Naming & API Design

Render Props Pattern

Small, Focused Components

Container/Presentational Pattern

Component File Organization

Avoiding Inline Functions/Objects