tsdown

To bundle a TypeScript library for multiple formats like esm and cjs, you can use tsdown. It automates bundling TypeScript and JavaScript libraries, supporting esm, cjs, iife, and umd formats for different environments.

The fastest way to build JavaScript libraries with type declarations is using Rolldown. tsdown leverages Rolldown for blazing-fast builds while automatically generating .d.ts files for type-safe libraries.

Yes, tsdown supports minification and tree shaking for npm packages. It optimizes bundle size through tree shaking and minification when building your TypeScript or JavaScript library.

Yes, you can use Rolldown plugins with this build automation tool. tsdown requires tsdown and related plugins like rollup-plugin-node-resolve, rollup-plugin-commonjs, and rolldown-plugin-dts for full functionality.

To start automating TypeScript library builds, install tsdown as a dev dependency and run the `npx tsdown` command. This will bundle your TypeScript or JavaScript library efficiently.

You should choose Rolldown for JavaScript library bundling to achieve blazing-fast build speeds. tsdown leverages Rolldown to provide efficient bundling, type declaration generation, and minification for multiple output formats.