minify-selectors v2.6.0

minify-selectors

Post-processor that minifies classes and IDs selector names in CSS, HTML and Javascript files. Each unique selector, and any subsequent occurances elsewhere, is converted into an ultracompact one.

Enhance your front-end assets and build optimisations pipeline — wring even more out from your already minified and optimised payload sizes. Additionally, can offer a certain degree of obfuscation to your code.

Features

For a full outline of capabilities and current limitations, see parse_selectors/info.md.

Comprehensive out of the box selector support

minify-selectors aims to minify all obvious selectors right out of the gate. Any extra work configuring should be to assist minify-selectors to identify additional and/or ambigious selectors.

CSS (or embedded style) example

JS (or embedded script) example

HTML example

Opt-in/opt-out selector encoding

Available in v1.0.0

In cases where minify-selectors is unable to parse selectors, for example: in custom HTML attributes or JS variables. Or forcing a selector to be encoded when it otherwise would not be, such as in a HTML code element or comments. You can prefix your selector names so that minify-selectors knows to parse it and how to encode it:

• .__-- or #__-- — instead of the selector type ('#' or '.') before CSS selector names
• __class-- or __id-- — for "name only" selectors, use '__class--' for class selectors and '__id--' for ID selectors

Or, you do not want minify-selectors to encode certain selectors (for reasons such as SEO). You can prefix your selector names so minify-selectors will leave the name as is (the prefix will be omitted):

• .__ignore-- and #__ignore-- — instead of the selector type ('#' or '.') before CSS selector names
• __ignore-- — for selectors that are "name only"

Usage

Please note: minify-selectors only supports regular CSS, HTML and JS files. minify-selectors should be one of the final steps in your build process — SASS/SCSS, LESS, Typescript, JQuery, Handlebars, etc. should be compiled or transpiled first into its respective vanilla form.

Via npm and npm scripts

1. Install via npm:

   npm i minify-selectors

2. Include minify-selectors in your package.json 'scripts' property:

   "scripts": {
     "build": "npm run build:webpack && npm run build:minify-selectors",
     "build:minify-selectors": "minify-selectors --input \"example/dir/src/\" --output \"example/dir/dist/\"",
     "build:webpack": "webpack --config config/webpack-prod.config.js"
   },

3. Run npm script command, for example:

   npm run build

Running as CLI tool

1. Install via homebrew:

   brew tap adamgian/minify-selectors && brew install minify-selectors

2. Run in command line:

   minify-selectors --input "example/dir/src" --output "example/dir/dist"

Options