React Course
React
/
Intermediate

Folder Structure

Definition

The architectural organization of files and directories in a React project to ensure maintainability.

Explain Like I'm New

If you throw all your clothes into one giant pile on the floor, it takes forever to find a pair of socks. Folder structure is like a dresser with specific drawers for shirts, pants, and socks. As your React app grows, having organized drawers prevents chaos.

Real World Example

Moving from a flat `src/components` folder to categorized folders: `src/layouts`, `src/pages`, `src/features`, `src/utils`.

Common Use Cases

  • •Scaling teams
  • •Onboarding new developers quickly

Terminal Output

bash / terminal
// Standard pattern // src/components // src/hooks // src/utils // src/services (API calls)

Interview Questions

basic

  • Is there a single 'official' folder structure for React?

intermediate

  • What is the difference between `components` and `pages`?

advanced

  • What is Colocation?

Flash Cards

Question

Is there an official structure?

Click to reveal answer
Answer

No. React is highly unopinionated. However, frameworks like Next.js DO enforce strict folder structures (like the `app/` router).

Question

What is Colocation?

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Answer

Colocation is the principle of keeping files that change together close together. Instead of putting a component's CSS in `src/styles`, you put it right next to the component in `src/components/Button/Button.css`.