What is lightningcss?
LightningCSS is a high-performance CSS parser, transformer, and minifier. It is designed to handle large CSS files efficiently and provides various functionalities for CSS processing.
What are lightningcss's main functionalities?
CSS Parsing
This feature allows you to parse CSS strings into an Abstract Syntax Tree (AST). The code sample demonstrates how to parse a simple CSS string and log the resulting AST.
const { parse } = require('lightningcss');
const css = '.class { color: red; }';
const ast = parse(css);
console.log(ast);
CSS Minification
This feature enables you to minify CSS code, reducing its size for better performance. The code sample shows how to minify a CSS string and log the minified output.
const { minify } = require('lightningcss');
const css = '.class { color: red; }';
const minified = minify(css);
console.log(minified);
CSS Transformation
This feature allows you to transform CSS code based on specific targets, such as browser compatibility. The code sample demonstrates transforming a CSS string to be compatible with the specified browser targets.
const { transform } = require('lightningcss');
const css = '.class { color: red; }';
const transformed = transform(css, { targets: { browsers: ['> 1%', 'last 2 versions'] } });
console.log(transformed);
Other packages similar to lightningcss
postcss
PostCSS is a tool for transforming CSS with JavaScript plugins. It is highly extensible and can be used for a wide range of CSS processing tasks, including parsing, minification, and transformation. Compared to LightningCSS, PostCSS offers a more extensive plugin ecosystem but may not be as performant for large CSS files.
clean-css
Clean-CSS is a fast and efficient CSS minifier. It focuses primarily on minification and optimization of CSS files. While it is highly effective for reducing file size, it does not offer the same level of parsing and transformation capabilities as LightningCSS.
csso
CSSO (CSS Optimizer) is a CSS minifier that also provides structural optimizations. It is designed to reduce the size of CSS files while preserving their functionality. CSSO is similar to LightningCSS in terms of minification but may not offer as comprehensive parsing and transformation features.