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Clean React: Logic Meets UI
Created by Utsav Chokshi
Learn how to structure React apps so that UI and business logic live in harmony. By the end, you’ll design smart-dumb components, extract reusable hooks and services, and write isolated unit tests that keep your codebase robust and maintainable.
Requirements
- Fundamental JavaScript ES6 syntax
- Basic React functional components and hooks (useState, useEffect)
- Familiarity with npm and running tests
What you'll learn
- Design React components that strictly separate presentation and business logic.
- Create reusable custom hooks and service modules for data and rules.
- Implement Redux selectors and context injection to decouple UI from state and services.
- Mock hooks and services to write fast, isolated unit tests.
- Plan and execute comprehensive tests for stateful and asynchronous React logic.
Learning path
8 modules • Each builds on the previous one
1
Separation Principle Review in React
Recap why splitting presentation from business logic matters, relating it to testability and maintainability.
1 video6 min
2
Smart vs Dumb Components Pattern
Introduce container (smart) components handling logic and presentational (dumb) components focusing on UI.
1 video5 min
3
Custom Hooks for Reusable Logic
Show how to move business rules and side-effects into custom hooks, keeping UI lean.
2 videos11 min
4
Service Modules for API Data
Extract data fetching and transformation into standalone service files or classes.
2 videos9 min
5
Redux Selectors for Isolated State
Use Redux (or similar) selectors to keep UI ignorant of state shape and derivations.
1 video7 min
6
Context Providers for Dependency Injection
Leverage React Context to inject dependencies (services, config) without coupling UI layers.
1 video8 min
7
Mocking Hooks and Services Tests
Demonstrate jest and testing-library techniques to mock custom hooks and service modules.
1 video7 min
8
Unit Testing Extracted Business Logic
Write pure function tests for validation, computation, and selectors without React rendering.
2 videos16 min
Start Learning
Begin your learning journey
Modules8
Duration64 min
Science-backed learning
In-video quizzes and scaffolded content to maximize retention.
Key concepts
Separation Of Concerns In ReactSmart Vs. Dumb Component PatternReusable Custom HooksService Modules And React QueryRedux Selectors For Derived StateDependency Injection With ContextMocking Dependencies For Isolated TestsTesting Strategy: Unit, Integration, E2ETesting Stateful And Async Components