postcss-minify-selectors

What is postcss-minify-selectors?

The postcss-minify-selectors package is a PostCSS plugin that minifies CSS selectors. It helps in reducing the size of CSS files by removing unnecessary spaces and characters from selectors, which can improve the performance of web pages.

What are postcss-minify-selectors's main functionalities?

Minify Selectors

This feature minifies CSS selectors by removing unnecessary spaces and characters. In the example, the selectors '.foo, .bar' are minified to '.foo,.bar'.

const postcss = require('postcss');
const minifySelectors = require('postcss-minify-selectors');

const css = '.foo, .bar { color: red; }';

postcss([minifySelectors])
  .process(css)
  .then(result => {
    console.log(result.css); // Output: '.foo,.bar{color:red;}'
  });

Remove Redundant Selectors

This feature removes redundant selectors. In the example, the redundant '.foo' selector is removed, resulting in a cleaner and smaller CSS file.

const postcss = require('postcss');
const minifySelectors = require('postcss-minify-selectors');

const css = '.foo, .foo { color: red; }';

postcss([minifySelectors])
  .process(css)
  .then(result => {
    console.log(result.css); // Output: '.foo{color:red;}'
  });

Other packages similar to postcss-minify-selectors

cssnano

cssnano is a modular minifier based on the PostCSS ecosystem. It includes a variety of optimizations, including selector minification, which makes it a more comprehensive tool compared to postcss-minify-selectors.

clean-css

clean-css is a fast and efficient CSS optimizer for Node.js. It provides a wide range of optimizations, including selector minification, similar to postcss-minify-selectors, but also offers additional features like advanced optimizations and compatibility options.

csso

csso (CSS Optimizer) is a CSS minifier that performs structural optimizations to make CSS files smaller. It includes selector minification as one of its features, making it comparable to postcss-minify-selectors, but it also focuses on other types of optimizations.

README

postcss-minify-selectors

Minify selectors with PostCSS.

Install via npm:

npm install postcss-minify-selectors --save

Example

var postcss = require('postcss')
var selectors = require('postcss-minify-selectors');

var css = 'h1 + p, h2, h3, h2{color:blue}';
console.log(postcss(selectors()).process(css).css);

// => 'h1+p,h2,h3{color:blue}'

For more examples see the tests.

Contributing

Pull requests are welcome. If you add functionality, then please add unit tests to cover it.

License

MIT © Ben Briggs