esm-env
Uses export conditions to return environment information in a way that works with major bundlers and runtimes.
Usage
Install with npm install esm-env, then import as needed:
import { BROWSER, DEV, NODE } from 'esm-env';
Specify conditions in your bundler or runtime. For example:
If esm-env is used in both bundled code and an externalized library, you will need to specify conditions both at build-time and run-time.
Acknowledgements
Thank you to dominikg for refining the approach used by this library to suggest a more scalable method for adding additional conditions.