minify-selectors
Advanced tools
Post-processor that minifies classes and IDs in CSS, HTML and Javascript files.
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.
For a full outline of capabilities and current limitations, see parse_selectors/info.md.
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.
|
Source: [id='page--default'] { … }
.sidebar, .site-nav { … }
.sidebar .search:focus-within { … }
.sidebar--expanded a.is-active { … }
|
Output: [id='a'] { … }
.b, .c { … }
.b .d:focus-within { … }
.e a.f { … }
|
Source: for (let link of document.querySelectorAll('a.anchor')) {
link.classList.remove('is-active');
}
|
Output: for (let link of document.querySelectorAll('a.Bd')) {
link.classList.remove('f');
}
|
|
Source: <body id="page--default">
<nav class="site-nav">
<div class="search has-content">
<label for="site-search" class="text--muted text--c
enter">
Search app
</label>
<input type="text" id="site-search" class="form-inp
ut--single form-input--lg border--thick">
</div>
</nav>
</body>
|
Output: <body id="a">
<nav class="c">
<div class="d a1">
<label for="y" class="F j">
Search app
</label>
<input type="text" id="y" class="A9 t Av">
</div>
</nav>
</body>
|
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|
Source: <main class="page page-dark">
<button
class="btn btn-warning"
data-toggle="modal"
data-target="#__--prompt-delete-user">
</button>
</main>
<script>
view.className = isDarkMode
? '__class--page __class--page--dark'
: '__class--page __class--page--light';
</script>
|
Output: <main class="b2 b3">
<button
class="a4 a7"
data-toggle="modal"
data-target="#bc">
</button>
</main>
<script>
view.className = isDarkMode
? 'b2 b3'
: 'b2 b4;
</script>
|
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"|
Source: <nav class="site-nav"> <a href="/faq/#__ignore--new-user"><a> <nav> |
Output: <nav class="c"> <a href="/faq/#new-user"><a> </div> |
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.
Install via npm:
npm i minify-selectors
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"
},
Run npm script command, for example:
npm run build
Install via homebrew:
brew tap adamgian/minify-selectors && brew install minify-selectors
Run in command line:
minify-selectors --input "example/dir/src" --output "example/dir/dist"
| Flag | Description |
|---|---|
--input (or -i)
| Directory to process. Any CSS, HTML and JS files in the given directory and sub-directories will be parsed. |
--output (or -o)
| Directory to ouput processed files to. Setting the output path to be the same as the input path will overwrite existing files. |
--alphabet
|
String sequence of characters to use when encoding.
Default: "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
--start-index
|
Index to start incrementing and encoding from.
Default: 0
|
v1.0.0-beta.3
<sub>10 Sep 2022</sub>
code, head, script and style)getElementById() and get ElementsByClassName() getting incorrectly processed as a stringFAQs
Post-processor that minifies classes and IDs in CSS, HTML, Javascript and SVG files.
The npm package minify-selectors receives a total of 1 weekly downloads. As such, minify-selectors popularity was classified as not popular.
We found that minify-selectors demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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