postcss-js

What is postcss-js?

The postcss-js package allows you to use PostCSS, a tool for transforming CSS with JavaScript, in a JavaScript environment. This enables the processing of CSS styles with JavaScript objects, facilitating dynamic style generation and manipulation within JavaScript projects.

What are postcss-js's main functionalities?

Parsing CSS to JS Objects

This feature allows the conversion of CSS styles into JavaScript objects, making it easier to manipulate CSS properties and values programmatically.

const postcssJs = require('postcss-js');
const autoprefixer = require('autoprefixer');
const root = postcssJs.parse({ color: 'red' });
console.log(root);

Applying PostCSS Plugins

Enables the use of PostCSS plugins, such as autoprefixer, directly on JavaScript objects representing CSS styles, allowing for advanced CSS processing and manipulation.

const postcssJs = require('postcss-js');
const autoprefixer = require('autoprefixer');
const prefixer = postcssJs.sync([ autoprefixer ]); 
const prefixed = prefixer({ display: 'flex' });
console.log(prefixed);

Other packages similar to postcss-js

styled-components

Styled-components is a library for React and React Native that allows you to use component-level styles in your application. It uses tagged template literals to style your components. Unlike postcss-js, which focuses on transforming CSS with JavaScript, styled-components aim to enhance CSS for styling React component systems.

emotion

Emotion is a performant and flexible CSS-in-JS library that allows you to style applications quickly with string or object styles. It supports both the CSS and CSS-in-JS approaches, providing a more integrated styling solution for React applications compared to postcss-js, which is more focused on CSS transformation and manipulation.

tailwindcss

Tailwind CSS is a utility-first CSS framework for rapidly building custom designs. Unlike postcss-js, which is a tool for transforming CSS with JavaScript, Tailwind provides a set of utility classes to build custom designs directly in your markup, promoting a different approach to styling web applications.

README

PostCSS JS

PostCSS for CSS-in-JS and styles in JS objects.

For example, to use Stylelint or RTLCSS plugins in your workflow.

Docs

Read full docs here.

Changelog

4.0.1

• Fixed :export case sensitivity (by Iskren Slavov).

4.0

• Removed Node.js 10 support.
• Moved postcss to peerDependencies.
• Added case preserving of CSS Custom Properties (by Jordan Pittman).
• Fixed package.exports.