Naming for variables and folders in a project is very important for maintaining readability and order in the code. Here are some general naming conventions and rules:
Naming variables
-
Use camelCase: for variables, functions, and names of props or state variables, such as:
- userName
- isLoggedIn
- handleClick
-
Name it clearly: The name of a variable should clearly convey its function or the information it holds, for example:
- cartItems (for items in the cart)
- authToken (for authentication token)
-
Use a descriptive name for the data type: If there are multiple data types in the same variable, for example:
- userAge (if there are multiple variables about the user)
- productPrice
-
Avoid abbreviations: Use full names for clarity, for example:
- Use userProfile instead of usrProf.
Folder naming
-
Use kebab-case or snake_case: for the name of the folder, for example:
- user-profile (kebab-case)
- user_profile (snake_case)
-
Name it descriptively: The name of the folder should reflect its contents or functionality, for example:
- components/ (for storing React components)
- services/ (for storing service functions or API)
- hooks/ (for storing custom hooks)
-
Use a consistent format: Maintain a consistent naming format across projects. For order, such as:
- If using kebab-case for a folder Use the same format for all folders
-
Avoid generic or vague names: Use names that reflect the folder's contents or function, such as:
- Use utils/ instead of misc/
- Use store/ instead of data/
example
Folder:
src/ ├── components/ │ ├── Button.tsx │ └── Header.tsx ├── hooks/ │ └── useFetch.ts ├── services/ │ └── apiService.ts ├── stores/ │ ├── auth/ │ │ ├── useAuthStore.ts │ │ └── authTypes.ts │ ├── user/ │ │ ├── useUserStore.ts │ │ └── userTypes.ts │ ├── product/ │ │ ├── useProductStore.ts │ │ └── productTypes.ts │ └── cart/ │ ├── useCartStore.ts │ └── cartTypes.ts └── index.ts
Variable:
// ตัวอย่างใน useAuthStore.ts interface AuthState { isAuthenticated: boolean; user: string | null; login: (username: string) => void; logout: () => void; } // ตัวอย่างใน useUserStore.ts interface UserState { name: string; email: string; updateUser: (name: string, email: string) => void; }
Using good naming rules will help your code look organized and easier to understand
Naming a configuration value or constant such as DATABASE_CONFIG Principles should be followed that make it easy to understand and meet the objective. Here are the rules for naming configurations:
กฎในการตั้งชื่อค่าคอนฟิก
-
ใช้รูปแบบ UPPER_SNAKE_CASE: ชื่อของค่าคอนฟิกหรือค่าคงที่ควรใช้รูปแบบ UPPER_SNAKE_CASE เพื่อแสดงให้เห็นว่านี่คือค่าคงที่และไม่ควรถูกเปลี่ยนแปลง เช่น:
- DATABASE_CONFIG
- API_ENDPOINT
- MAX_RETRY_ATTEMPTS
-
สื่อความหมายได้ชัดเจน: ชื่อของค่าคอนฟิกควรบ่งบอกถึงการใช้งานหรือวัตถุประสงค์ของมัน เช่น:
- DATABASE_HOST (สำหรับโฮสต์ของฐานข้อมูล)
- CACHE_EXPIRATION_TIME (สำหรับเวลาหมดอายุของแคช)
-
รวมคอนเท็กซ์และการใช้งาน: ค่าคอนฟิกควรมีชื่อที่รวมคอนเท็กซ์หรือการใช้งานเพื่อให้เข้าใจได้ง่าย เช่น:
- EMAIL_SERVICE_API_KEY (สำหรับคีย์ API ของบริการอีเมล)
- JWT_SECRET_KEY (สำหรับคีย์ลับของ JSON Web Token)
-
หลีกเลี่ยงการใช้ชื่อที่คลุมเครือ: ชื่อของค่าคอนฟิกควรเฉพาะเจาะจงและไม่ควรใช้ชื่อที่คลุมเครือหรือทั่วไปเกินไป เช่น:
- ใช้ DATABASE_PORT แทน PORT
- ใช้ SESSION_TIMEOUT แทน TIMEOUT
-
ใช้คำที่สื่อถึงประเภทของค่า: ชื่อค่าคอนฟิกควรสื่อถึงประเภทของค่า เช่น ค่าเชิงตัวเลข, สตริง, หรือ Boolean เป็นต้น เช่น:
- MAX_CONNECTIONS (ค่าตัวเลขสูงสุดของการเชื่อมต่อ)
- ENABLE_LOGGING (ค่า Boolean สำหรับเปิดหรือปิดการบันทึก)
ตัวอย่างการตั้งชื่อค่าคอนฟิก
ไฟล์คอนฟิก
// ตัวอย่างในไฟล์ config.ts export const DATABASE_CONFIG = { HOST: 'localhost', PORT: 5432, USER: 'dbuser', PASSWORD: 'password', DATABASE_NAME: 'mydatabase' }; export const API_CONFIG = { BASE_URL: 'https://api.example.com', TIMEOUT: 5000, // Timeout in milliseconds API_KEY: 'your-api-key-here' }; export const APP_SETTINGS = { MAX_RETRY_ATTEMPTS: 3, SESSION_TIMEOUT: 3600, // Timeout in seconds ENABLE_LOGGING: true };
การใช้ค่าคอนฟิกในโค้ด
import { DATABASE_CONFIG, API_CONFIG, APP_SETTINGS } from './config'; // การใช้ค่าคอนฟิกในการเชื่อมต่อฐานข้อมูล const dbConnection = connectToDatabase({ host: DATABASE_CONFIG.HOST, port: DATABASE_CONFIG.PORT, user: DATABASE_CONFIG.USER, password: DATABASE_CONFIG.PASSWORD, database: DATABASE_CONFIG.DATABASE_NAME }); // การใช้ค่าคอนฟิกสำหรับ API const fetchData = async () => { try { const response = await fetch(API_CONFIG.BASE_URL + '/data', { method: 'GET', headers: { 'Authorization': `Bearer ${API_CONFIG.API_KEY}` }, timeout: API_CONFIG.TIMEOUT }); const data = await response.json(); return data; } catch (error) { if (APP_SETTINGS.ENABLE_LOGGING) { console.error('Error fetching data:', error); } throw error; } };
การใช้หลักการเหล่านี้จะช่วยให้คุณตั้งชื่อค่าคอนฟิกอย่างมีระเบียบและเข้าใจง่ายครับ
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