NextJS type errors not showing with npm run dev

Question

If I have a typescript error, I can see it in my editor but not in the browser, nor in the terminal running npm run dev. It does show when running npm run build.

Is there any way to make type errors apparent during npm run dev in the terminal and the browser window?

Bennik2000 · Accepted Answer · 2023-05-05 13:35:40Z

0

As I know currently there is no easy way to enable checking during development https://github.com/vercel/next.js/issues/12735#issuecomment-626869676. It was done on purpose to speed up the development.

Maybe it would be helpful to know that you can disable those errors for the build. Add this to your next.config.js

module.exports = {
  typescript: {
    ignoreBuildErrors: true
  }
};

See here for the documentation of ignoreBuildErrors.

edited May 5, 2023 at 13:35

Bennik2000

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answered Jan 9, 2023 at 11:24

Maksym Shokin

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1 Comment

Bennik2000 Over a year ago

I think that you should not ignore build errors for production build as this masks the actual error and may lead to unnoticed bugs.

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