Maxence Poutord • 9/8/2023

How to publish an npm package for ESM and CommonJS with TypeScript

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This technical tutorial explains how to configure and publish an npm package written in TypeScript to support both ESM (ECMAScript Modules) and CommonJS environments. It covers setting up separate TypeScript configurations (tsconfig.esm.json and tsconfig.cjs.json), structuring the package.json with conditional exports, and building for dual module systems to ensure compatibility with modern frontend (e.g., Vite) and backend (e.g., NestJS) projects.

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#TypeScript #npm #commonjs
How to publish an npm package for ESM and CommonJS with TypeScript

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