ES Modules for browsers

[jonjharrison]

Would be great to add support for browser-friendly ES modules if possible - currently they don't load when loaded as modules from the browser because of the process.env.NODE_ENV references.

Looks like this was solved in the core redux package by adding an additional rollup config, would it be possible to have something similar for toolkit?

[markerikson]

Sure, happy to accept a PR on that.

[msutkowski]

I did some digging around regarding this, and it seems like there is no easy way to get tsdx to do this at this time. I can swap out the regular ESM build with this browser-specific version like redux does but I've been unable to get multiple variations of the ESM build to happen. Ideally, we could just pass in a new custom build format (like 'mjs') and have it process the defined config for the format, but tsdx restricts the build to it's supported formats as it supplies defaults. There is some more context in this issue: jaredpalmer/tsdx#631, but it seems like the patch-package solution might be a little bit of a 🐰 🕳️. Maybe someone else can figure this out :)

[markerikson]

So this is a bit confusing to me. We apparently merged #658 a year ago, and that should have been in the 1.5.0 and 1.5.1 releases. But, I don't see any .esm.production artifacts in either published package.

So, I'm going to see if we can actually fix this in #957 , now.

[markerikson]

Should be resolved by #957 , and will be out in 1.6.