Cursor rule

1---
2description: "TypeScript patterns extending common rules"
3globs: ["**/*.ts", "**/*.tsx", "**/*.js", "**/*.jsx"]
4alwaysApply: false
5---
6# TypeScript/JavaScript Patterns
7 
8> This file extends the common patterns rule with TypeScript/JavaScript specific content.
9 
10## API Response Format
11 
12```typescript
13interface ApiResponse<T> {
14  success: boolean
15  data?: T
16  error?: string
17  meta?: {
18    total: number
19    page: number
20    limit: number
21  }
22}
23```
24 
25## Custom Hooks Pattern
26 
27```typescript
28export function useDebounce<T>(value: T, delay: number): T {
29  const [debouncedValue, setDebouncedValue] = useState<T>(value)
30 
31  useEffect(() => {
32    const handler = setTimeout(() => setDebouncedValue(value), delay)
33    return () => clearTimeout(handler)
34  }, [value, delay])
35 
36  return debouncedValue
37}
38```
39 
40## Repository Pattern
41 
42```typescript
43interface Repository<T> {
44  findAll(filters?: Filters): Promise<T[]>
45  findById(id: string): Promise<T | null>
46  create(data: CreateDto): Promise<T>
47  update(id: string, data: UpdateDto): Promise<T>
48  delete(id: string): Promise<void>
49}
50```
51