class-order is a JavaScript library that provides a unique approach to CSS class precedence, allowing HTML developers to control class precedence based on the order of classes within the class attribute. This library is designed to offer an alternative to the traditional method where CSS rules defined later in the source override earlier rules.

You can install the library using npm:

npm install class-order

In React applications, you can use the merge function from the class-order library to control class precedence. Here's an example of how to use it:

import { merge } from 'class-order';

// ...

<div className={merge("classA classB ...")} /* other props */>
  {/* Your component content */}
</div>

merge takes a space-separated list of class names and arranges them in the order they appear within the class attribute.

For Svelte applications, you can use the classOrder directive provided by the class-order library. Here's an example of how to use it:

<script>
  import { classOrder } from 'class-order';
</script>

<div use:classOrder class="classA classB ..." /* other props */>
  <!-- Your component content -->
</div>

classOrder ensures that classes are applied in the order they appear within the class attribute.

You can also import from class-order/tailwind-merge if you just want to have a directive for this battle tested library.

• Fine-grained Control: With class-order, you can explicitly determine class precedence by the order of classes in the class attribute.

• Drop-in Replacement: The library is designed to be a seamless replacement for twMerge in Tailwind CSS setups and can be easily integrated into existing projects. For a detailed comparison between class-order and tailwind-merge, check out vs_twMerge.md.

You can import forceMergeor forceClassOrderrespectively if you want to completely enforce class precedence in your classattribute – this will also override !important properties, so your layout might break in multiple ways.

Contributions are welcome! If you find any issues or have suggestions for improvements, feel free to open an issue or submit a pull request.

This project is licensed under the MIT License - see the LICENSE file for details.

Give class-order a try and take control of CSS class precedence like never before! If you have any questions, feedback, or concerns, don't hesitate to reach out.