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TypeScriptReactBest Practices

Advanced TypeScript Patterns for React

10 min read

# Advanced TypeScript Patterns for React

TypeScript has become the standard for building robust React applications. In this post, we'll explore advanced patterns that will take your TypeScript skills to the next level.

Generic Components

Generic components allow you to create reusable, type-safe components:

interface ListProps {
  items: T[]
  renderItem: (item: T) => React.ReactNode
}

function List({ items, renderItem }: ListProps) { return

{items.map(renderItem)}
} ```

Discriminated Unions

Use discriminated unions for type-safe state management:

type State =
  | { status: 'idle' }
  | { status: 'loading' }
  | { status: 'success'; data: Data }
  | { status: 'error'; error: Error }

Utility Types

Master TypeScript's built-in utility types:

  • `Partial`: Make all properties optional
  • `Required`: Make all properties required
  • `Pick`: Select specific properties
  • `Omit`: Exclude specific properties

Conclusion

These advanced patterns will help you write more maintainable and type-safe React applications.