RFC: Support for eslint-plugin-compat

[amilajack]

Recently I've been working on an eslint plugin called eslint-plugin-compat that lints support for API's by using the caniuse db. It seems there is demand from the community for this plugin. Wonder if it has a place in create-react-app. Would a PR for it be welcome?

Here's a demo of it in action

Also planning to add integration with babel-preset-env and browserlist

[gaearon]

That's pretty cool. Let's take another look at this after #1249.

[amilajack]

Great! This actually works with the browserslist config in the package.json 🎉

https://github.com/amilajack/eslint-plugin-compat-demo/blob/master/package.json#L9

[gaearon]

Do you want to send a PR for this?

[amilajack]

Sure! I don't know how CRA internals work. Which .eslintrc should I change?

[gaearon]

https://github.com/facebookincubator/create-react-app/blob/next/CONTRIBUTING.md#package-descriptions

[amilajack]

Thanks. I'll start working on this

[Timer]

How would polyfills work in something like CRA? Excited to see your PR.

[stereobooster]

There is also https://github.com/ismay/stylelint-no-unsupported-browser-features

[ackvf]

Is there a way how to use this with create-react-app 2.0 nowadays?

[morsdyce]

Is this being worked on? Can I open a PR for this?

[amilajack]

I wanted to wait to implement better polyfill and babel interoperability to the plugin before making a PR for this. I'll respond here again once I've implemented it.

[amilajack]

How would polyfills work in something like CRA? Excited to see your PR.

It detects if you're using babel or TS and if you are, it assumes all ES APIs are polyfilled and lints only WebAPIs

[amilajack]

I wanted to wait to implement better polyfill and babel interoperability to the plugin before making a PR for this. I'll respond here again once I've implemented it.

@morsdyce The plugin should be good to implement now!

[jakobvase]

@gaearon You last wrote on this 2 years ago. Would you still accept a PR for this? Or is CRA headed in another direction?