Feature Folders & UI vs Composite Components
Adopt feature folders and split components: tiny reusable UI primitives vs feature-specific composites that orchestrate state and data.
Feature Folders & UI vs Composite Components is a free React Academy lesson on CoddyKit. This is lesson 1 of 3. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the React Academy learning path, and your progress syncs across the web and the CoddyKit app. The React Academy course includes 3 lessons in total.
Why structure matters
Goal: Structure code that scales.
- Feature folders collect related code
- UI primitives are tiny visual building blocks
- Composite components wire them together
Feature-first folders
- features/checkout/ (routes, composites, hooks, tests)
- ui/ (primitives: Button, Input, Card)
- lib/ (helpers)
- assets/ (icons, styles)
UI Primitive: Button
Create a small Button primitive: visual, reusable, no data fetching.
<div id="root"></div>Composite: QuantityCard
A composite comp wires primitives and state for a feature task.
<div id="root"></div>Feature folder in action
In a features/checkout folder, a CheckoutPanel composes primitives and composites.
<div id="root"></div>Tips & checklist
- Keep primitives tiny and reusable
- Let composites hold feature state
- Prefer feature folders over giant global buckets
Primitive vs composite check
Recap
Recap: Structure by feature, build tiny UI primitives, and assemble them in composite components that own feature state.
Frequently Asked Questions
Is the “Feature Folders & UI vs Composite Components” lesson free?
Yes — the full text of “Feature Folders & UI vs Composite Components” is free to read here on the web. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the React Academy course, upgrade to CoddyKit PRO. The React Academy course includes 3 lessons in total.
What will I learn in “Feature Folders & UI vs Composite Components”?
Adopt feature folders and split components: tiny reusable UI primitives vs feature-specific composites that orchestrate state and data. You practise React Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start React Academy?
No prior experience is required. React Academy on CoddyKit is structured for beginners through advanced learners, so you can start here or from the beginning and move at your own pace. This is lesson 1 of 3.
How long does the “Feature Folders & UI vs Composite Components” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this React Academy lesson?
Yes. Every React Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- Feature Folders & UI vs Composite Components
- Hooks Folder Conventions & Test Co-location
- Refactoring Guidelines