javascript - How to generate sourcemaps in create react app?

Question

I'm wondering how to generate source maps in create-react-app? are they done implicitly? and do they live in the build folder

I've read quite a lot about them being generated with webpack but my app is not using it, so I was wondering how I do this without webpack?

I also don't want to eject

Answer 1

According to CRA documentation, source maps are generated by default in production mode.

However, you can disable this behavior (generating source maps in production mode) by running GENERATE_SOURCEMAP=false ./node_modules/.bin/react-scripts build or if you want this behavior to be permanent, do one of the following solutions:

1. Set GENERATE_SOURCEMAP=false in your .env file.
2. Modify the scripts in your package.json and replace "build": "react-scripts build" with "build": "GENERATE_SOURCEMAP=false react-scripts build"

https://facebook.github.io/create-react-app/docs/advanced-configuration