rollup-plugin-postcss VS eslint-config-prettier

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:

As I was reading the Prettier documentation I stumbled upon this blob which talks about how to make ESLint and Prettier play nicely with each other. It instructed to install eslint-config-prettier dependency in my project using the command npm install --save-dev eslint-config-prettier. Then I added prettier as part of the .eslintrc.cjs' extends array making prettier dependency part of the linting process. Lastly, I ran its cmd line helper npx eslint-config-prettier path/to/main.js to check if there were any ESLint rules which are unnecessary or would conflict with Prettier. The test results came out fine with no unnecessary or conflicting rules. The use case on how it works and why to use it is mentioned here.

I wouldn’t say they’re arguing something completely different. A large subset of linting rules are by nature purely formatting rules. You can enforce line length with either prettier or a linter and both can auto fix the issue.

Because of this things like [`eslint-config-prettier`](https://github.com/prettier/eslint-config-prettier) exist to ensure conflicting eslint formatting rules are disabled if they can be handled by prettier.

If you use Prettier you should disable any and all eslint formatting rules. It's just not worth the hassle trying to make them "compatible". Fortunately there's an easy way to do that with a plugin.

Also add this eslint plugin, which makes eslint play nice with prettier: https://github.com/prettier/eslint-config-prettier

If you don’t care about the diagnostics, you should be using this instead. Prettier even says so.

Linting is an important step in maintaining code quality, The React Library Builder uses ESLint and eslint-config-prettier for linting. You can modify linting rules by overriding them in the .eslintrc file.

eslint-config-prettier: An ESLint configuration which disables the formatting rules in ESLint that Prettier is going to be responsible for handling, hence avoiding any clashes.

You can use both Eslint and Prettier if you care greatly about both linting and code formatting. Prettier had a plugin to disable Eslint's formatting rules.

The eslint-config-prettier package disables all ESLint rules that might conflict with Prettier. This lets us use ESLint configurations without letting it get in the way when using Prettier. We can then use the eslint-plugin-prettier package to integrate Prettier rules into ESLint rules. Finally, we must set the Prettier rules in the ESLint configuration file. Add the following configuration to the .eslintrc file in the root directory of the application: