Css Types

What is this package for

The package provides a convenient way to create a typescript enum for css classes in *.css and *.scss files for later use in typescript or javascript files. It does not require a bundler and can be used on directories or separate files.

Usage

Install it from npm using your preferred package manager, i.e.:

npm install css-types --save-dev

Create a custom script in your package.json file:

"scripts": {
    "css-types": "css-types"
}

Then run it:

npm run css-types

You can also set it to watch mode:

"scripts": {
    "css-types": "css-types --watch"
}

By default css-types looks for the src directory and walks it, creating typescript enums for every *.css and *.scss file it finds. To set a different directory for crawling simply pass its relative path:

"scripts": {
    "css-types": "css-types --watch --directory=src/css"
},

What does it do

It creates a typescript a *.style.ts file containing enum with all style classes found in the stylesheet file as enum values *.css and *.scss file will receive.

For example, provided you have a stylesheet main.scss with the following contents:

// Hypothetical main.css file.
.content {
  color: pink;
  .ads {
    background: red;
  }
}

Performing css-types command will create main.style.ts file with the following enum:

export enum Main {
  Content = 'content',
  Ads = 'ads',
}

Now it can be used in ts:

import { Main } from './css/main.style';

document.getElementById('some-element-id').classList.add(Main.Content);

No need to worry about accidental renaming of css class that is used somewhere - as soon as types are updated and enum keys change, it will trigger an error if non-existant css classes are in use somewhere.

Plans for future

• add --watch flag for auto-updates of typings; added in version 1.1.0.
• add enumeration for IDs;
• add support for LESS.