rollup-plugin-postcss VS browserslist

The React Library Builder supports both SCSS and CSS out of the box, so you can style your components as you normally would. If you want to use CSS modules, you can refer to the rollup-plugin-postcss documentation for more information.

import { nodeResolve } from "@rollup/plugin-node-resolve"; import postcss from "rollup-plugin-postcss"; import copy from "rollup-plugin-copy"; export default [ { input: "src/js/combine.js", output: { file: "src/js/minified/index.bundle.js", sourcemap: false, } plugins: [ nodeResolve(), postcss({ extract: true, // no way to move output to another folder https://github.com/egoist/rollup-plugin-postcss/issues/250 minimize: true, }), copy({ targets: [ { src: "src/js/minified/index.bundle.css", dest: "src/styles/minified", rename: "fonts.bundle.css", }, ], verbose: true, hook: "writeBundle", }) ], } ];

To process Less files we will use PostCSS, which is a JavaScript build tool for CSS, Less, and other CSS preprocessors. It also comes with a built-in minifier. We can add it to the project with a Rollup plugin:

Not these days, where most people are using evergreen browsers and iOS users upgrade very quickly.

Take a look at the defaults for browserslist, for example:

https://browsersl.ist/#q=defaults

It just barely supports Safari 15, on iOS only, and that’s likely to go away imminently because it’s under 1% usage.

browserslist

We compile JS only for modern browsers. The list of default browsers in Next can be overridden in your browserslist.

In the latest versions of Next.js, targeting specific browsers or features is a breeze using the Browserslist configuration in your package.json file. The latest version of Next.js (v13) uses the following configuration by default:

For a more general answer to browser support, check out https://github.com/browserslist/browserslist. That seems to be standard tool to help you with that.

As someone else pointed out, you're overestimating Chrome/ium's market share.

Regardless, after the web.dev/baseline announcement, I looked at Browslerlist and one of our site's analytics and it is shocking how many people are not using the last two versions of evergreen browsers. There is a long tail of browser versions in those stats.

https://browsersl.ist

The way folks handle this in production is with browserslist, which lets you query on different things you want to support: https://github.com/browserslist/browserslist. This in turn tells other parts of your tooling what language features to transpile for production.

I imagine tools could be built on top of that which do what you’re asking too

# .browserslist.rc # Babel Preset configuration # -------------------------- # Defines web-browser compatibility parameters for Babel to transpile your JS code. # This configuration is used by babel.config.js. # More information in here. # https://github.com/browserslist/browserslist # Support browsers with a market share higher than 5% >10%