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by alangpierce 3466 days ago
In addition to sourcemaps, another option that I've been meaning to try is to skip most of the babel transforms for typical development builds. Chrome has had full ES2015 support for a while now and it looks like it now has async/await on stable, so it's getting to a point where it should be possible to just debug your ES2015/ES2016/whatever code within Chrome without needing source maps.

You'd still need to do some transpiling for imports/exports and JSX, though, depending on what you use. And running different code in development and production has its risks.

1 comments

(I feel like i'm all over this thread...)

I actually tried this for a bit. I found that it really increased the complexity of the build system for not that much of a gain.

Instead of having a "dev" build and a "prod" build, we needed a "chromeDev", a "otherBrowsersDev", and a "prod" build.

So now you have 3 separate environments for your babel configs which you need to keep in-sync, and you run the risk of the semantics being slightly different natively vs the transpiled version (Which IMO isn't that bad when you go from transpiled->native as the transpiled is normally a subset of the "native" functionality, so you are less likely to hit issues)

I don't have any such issue.

What I've been doing is just writing in ES6 and testing on Chrome, then after its towards V 1.0 I'll add webpack to the staging branch.

Very little work to switch from a bunch of script tags to a bundle towards the end of active development, much faster than bundling every single time I change the code a little bit.

That is, of course, unless I have to compile typescript, then I'll just target ES5 anyways.