Disable TypeScript from checking types validity when building for production

Question

I am using using Next.js with TypeScript for a small project. I am wondering if it's possible to disable types validity checks when I run npm run build considering type checking happened during npm run dev. Plus this will help to build production build without TypeScript package which is not used in production.

Answer 1

Open next.config.js and enable the ignoreBuildErrors option in the typescript config:

module.exports = {
  typescript: {
    // !! WARN !!
    // Dangerously allow production builds to successfully complete even if
    // your project has type errors.
    // !! WARN !!
    ignoreBuildErrors: true,
  },
}

More info on the docs: https://nextjs.org/docs/api-reference/next.config.js/ignoring-typescript-errors