Project: Folder Structure Guide

When working on a React Native project, maintaining a clean and organized folder structure is crucial for scalability and collaboration. Below is a best-practice folder structure to keep your project modular, maintainable, and easy to navigate.

Project Folder Structure Breakdown:

project-root/
│
├── src/                        # Source code
│   ├── assets/                 # Images, fonts, icons, etc.
│   │   ├── images/             # Application images
│   │   ├── fonts/              # Custom fonts
│   │   └── icons/              # Icon assets
│   │
│   ├── components/             # Reusable UI components
│   │   ├── Button/
│   │   │   ├── Button.tsx      # Button component
│   │   │   └── styles.ts       # Button styles
│   │   └── Header/
│   │       ├── Header.tsx      # Header component
│   │       └── styles.ts       # Header styles
│   │
│   ├── screens/                # Application screens
│   │   ├── Home/
│   │   │   ├── Home.tsx        # Home screen component
│   │   │   └── styles.ts       # Home screen styles
│   │   └── Profile/
│   │       ├── Profile.tsx     # Profile screen component
│   │       └── styles.ts       # Profile screen styles
│   │
│   ├── navigation/             # App navigation setup
│   │   ├── AppNavigator.tsx    # Main app navigation
│   │   └── NavigationService.ts# Navigation utility functions
│   │
│   ├── services/               # API services and business logic
│   │   ├── ApiService.ts       # Handles API calls
│   │   └── AuthService.ts      # Authentication-related services
│   │
│   ├── store/                  # State management (e.g., Redux)
│   │   ├── actions/            # Action creators
│   │   ├── reducers/           # Reducers
│   │   └── store.ts            # Store configuration
│   │
│   ├── utils/                  # Utility and helper functions
│   │   ├── helpers.ts          # Common helper functions
│   │   └── constants.ts        # Application-wide constants
│   │
│   ├── App.tsx                 # Main app component (entry point)
│   ├── index.tsx               # Application bootstrap file
│   └── styles.ts               # Global styles shared across the app
│
├── tests/                      # Test cases
│   ├── components/             # Component tests
│   ├── screens/                # Screen tests
│   └── setupTests.ts           # Test configuration and setup
│
├── .eslintrc.js                # ESLint configuration (code linting)
├── .prettierrc.js              # Prettier configuration (code formatting)
├── babel.config.js             # Babel configuration (JavaScript transpiling)
├── tsconfig.json               # TypeScript configuration
├── package.json                # Project dependencies and scripts
└── README.md                   # Project documentation

Key Best Practices:

1. Modularization: Each feature or component should be encapsulated in its own directory with relevant logic (e.g., Button.tsx and styles.ts together).
2. Assets Separation: Keep images, fonts, and icons organized in the assets folder to avoid clutter.
3. Component Reusability: Store reusable components in the components directory for better code reuse and maintainability.
4. Screens: Place each screen component in its own folder to separate logic, styles, and UI elements.
5. Navigation: Centralize all navigation logic in the navigation folder for easier updates and changes.
6. Services: Handle business logic, such as API calls or authentication, in the services folder to maintain a clear separation of concerns.
7. State Management: Centralize your state management setup (e.g., Redux) in the store directory for clarity.
8. Utility Functions: Store helper functions and constants in utils to promote code reusability.
9. Test Organization: Keep tests separate in the tests folder to maintain clean project structure.
10. Configuration Files: Keep all configuration files (e.g., ESLint, Prettier, Babel) at the root level to keep track of project-wide settings.

By following this structure, your React Native project will be organized, scalable, and easier to maintain as it grows.