Typescript DRY

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Avoid duplicating code in TypeScript. Extract repeated logic into reusable functions, types, or constants. You may have to search the codebase to see if the method or type is already defined.
Bad:
```typescript
// Duplicated type definitions
interface User {
  id: string
  name: string

Install this rule for wispbit

Add this rule to wispbit and it will run when you open a pull request

Install this rule for Coderabbit

Copy the configuration below and add it to your repository as .coderabbit.yml in your project root.

reviews:
  path_instructions:
    - path: "*.ts,*.tsx"
      instructions: |
                
        Avoid duplicating code in TypeScript. Extract repeated logic into reusable functions, types, or constants. You may have to search the codebase to see if the method or type is already defined.
        
        Bad:
        
        ```typescript
        // Duplicated type definitions
        interface User {
          id: string
          name: string
        }
        
        interface UserProfile {
          id: string
          name: string
        }
        
        // Magic numbers repeated
        const pageSize = 10
        const itemsPerPage = 10
        ```
        
        Good:
        
        ```typescript
        // Reusable type and constant
        type User = {
          id: string
          name: string
        }
        
        const PAGE_SIZE = 10
        ```

Install this rule for Greptile

Greptile rules can be added through the web interface. Please see this documentation for details on how to add custom rules and context.

Avoid duplicating code in TypeScript. Extract repeated logic into reusable functions, types, or constants. You may have to search the codebase to see if the method or type is already defined.
Bad:
```typescript
// Duplicated type definitions
interface User {
  id: string
  name: string
}
interface UserProfile {
  id: string
  name: string
}
// Magic numbers repeated
const pageSize = 10
const itemsPerPage = 10
```
Good:
```typescript
// Reusable type and constant
type User = {
  id: string
  name: string
}
const PAGE_SIZE = 10
```

File Path Patterns:

*.ts
*.tsx

Install this rule for GitHub Copilot

Copilot instructions can be added through the interface. See the documentation for details on how to create coding guidelines.

Avoid duplicating code in TypeScript. Extract repeated logic into reusable functions, types, or constants. You may have to search the codebase to see if the method or type is already defined.
Bad:
```typescript
// Duplicated type definitions
interface User {
  id: string
  name: string
}
interface UserProfile {
  id: string
  name: string
}
// Magic numbers repeated
const pageSize = 10
const itemsPerPage = 10
```
Good:
```typescript
// Reusable type and constant
type User = {
  id: string
  name: string
}
const PAGE_SIZE = 10
```

File Path Patterns:

*.ts
*.tsx

Install this rule for Graphite Diamond

Diamond custom rules can be added through the interface. See the documentation for details on how to create custom rules.

Avoid duplicating code in TypeScript. Extract repeated logic into reusable functions, types, or constants. You may have to search the codebase to see if the method or type is already defined.
Bad:
```typescript
// Duplicated type definitions
interface User {
  id: string
  name: string
}
interface UserProfile {
  id: string
  name: string
}
// Magic numbers repeated
const pageSize = 10
const itemsPerPage = 10
```
Good:
```typescript
// Reusable type and constant
type User = {
  id: string
  name: string
}
const PAGE_SIZE = 10
```

File Path Patterns:

*.ts
*.tsx

Use with Cline

Copy the rule below and ask Cline to review your code using this rule

Avoid duplicating code in TypeScript. Extract repeated logic into reusable functions, types, or constants. You may have to search the codebase to see if the method or type is already defined.
Bad:
```typescript
// Duplicated type definitions
interface User {
  id: string
  name: string
}
interface UserProfile {
  id: string
  name: string
}
// Magic numbers repeated
const pageSize = 10
const itemsPerPage = 10
```
Good:
```typescript
// Reusable type and constant
type User = {
  id: string
  name: string
}
const PAGE_SIZE = 10
```

Use with OpenAI Codex

Copy the rule below and ask OpenAI Codex to review your code using this rule

Avoid duplicating code in TypeScript. Extract repeated logic into reusable functions, types, or constants. You may have to search the codebase to see if the method or type is already defined.
Bad:
```typescript
// Duplicated type definitions
interface User {
  id: string
  name: string
}
interface UserProfile {
  id: string
  name: string
}
// Magic numbers repeated
const pageSize = 10
const itemsPerPage = 10
```
Good:
```typescript
// Reusable type and constant
type User = {
  id: string
  name: string
}
const PAGE_SIZE = 10
```

Use with Cursor

Copy the rule below and ask Cursor to review your code using this rule

Avoid duplicating code in TypeScript. Extract repeated logic into reusable functions, types, or constants. You may have to search the codebase to see if the method or type is already defined.
Bad:
```typescript
// Duplicated type definitions
interface User {
  id: string
  name: string
}
interface UserProfile {
  id: string
  name: string
}
// Magic numbers repeated
const pageSize = 10
const itemsPerPage = 10
```
Good:
```typescript
// Reusable type and constant
type User = {
  id: string
  name: string
}
const PAGE_SIZE = 10
```

Use with Claude Code

Copy the rule below and ask Claude Code to review your code using this rule

Avoid duplicating code in TypeScript. Extract repeated logic into reusable functions, types, or constants. You may have to search the codebase to see if the method or type is already defined.
Bad:
```typescript
// Duplicated type definitions
interface User {
  id: string
  name: string
}
interface UserProfile {
  id: string
  name: string
}
// Magic numbers repeated
const pageSize = 10
const itemsPerPage = 10
```
Good:
```typescript
// Reusable type and constant
type User = {
  id: string
  name: string
}
const PAGE_SIZE = 10
```

Install this rule for Windsurf

To set up rules for Windsurf Reviews, please see this documentation 

Avoid duplicating code in TypeScript. Extract repeated logic into reusable functions, types, or constants. You may have to search the codebase to see if the method or type is already defined.
Bad:
```typescript
// Duplicated type definitions
interface User {
  id: string
  name: string
}
interface UserProfile {
  id: string
  name: string
}
// Magic numbers repeated
const pageSize = 10
const itemsPerPage = 10
```
Good:
```typescript
// Reusable type and constant
type User = {
  id: string
  name: string
}
const PAGE_SIZE = 10
```