TypeScript Academy · Lesson

Re-exports and Barrel Files

Create index files to simplify import paths.

Welcome

Barrel files (index.ts) aggregate and re-export module contents, creating a simple public API for a directory so consumers have cleaner import paths.

A barrel is an index.ts that re-exports everything from the same directory. Consumers import from the directory instead of individual files.

// src/models/index.ts (barrel)
export { User } from './user';
export { Product } from './product';
export { Order } from './order';