babeljs integration example

[wmill]

Just a proof of concept showing how to integrate bablejs so that you can use newer JS features.

Edit files/bundles.yaml to control what files are transpiled.

[zorbathut]

Huh. Neat!

So, as I'm reading this, it looks like this is basically being given to Flask as a preprocessing step. Any idea if Flask is smart enough to cache, or is it regenerating every run? Also, if it's caching, is it smart enough to recognize when the underlying files have changed and reprocess it?

[wmill]

@zorbathut So Flask-Assets is built on top of WebAssets. It's supposed to handle caching, rebuilding, and can even upload the files to S3 if you want.

I haven't verified that it's all working correctly, additional configuration might be needed to set up caching properly. Note that if you're looking at the docs Python Babel is completely different from BabelJS. Python Babel does internationalization.

[zorbathut]

Any idea how hard it would be to work typescript into this? It looks like Babel and TS do similar-but-unrelated things.

[wmill]

Babel can compile typescript using @babel/preset-typescript, there are limits because it can't do things like generate .d.ts files. It should work for this.