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merge-class-names

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A function that merges given class names, no matter their format: string with single or multiple class names or an array of class names. Filters out invalid class names as well.

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# Merge-Class-Names

> **Warning**
>
> This package is no longer maintained. Consider [clsx](https://github.com/lukeed/clsx), equally tiny and more powerful utility that does the same thing.

A function that merges given class names, no matter their format. Filters out invalid class names as well.

## tl;dr

- Install by executing `npm install merge-class-names` or `yarn add merge-class-names`.
- Import by adding `import mergeClassNames from 'merge-class-names'`.
- Use it in `className` like so: `<div className={mergeClassNames('foo', condition && 'bar', arrayOfClasses)} />`

## Accepted formats

- Strings with one or multiple class names: `a`, `a b`
- Array of strings with one or multiple class names: `['a', 'b']`, `['a b', 'c d']`.

## Examples

```js
> mergeClassNames('a', 'b', 'c');
< 'a b c'

> mergeClassNames('a b', 'c d', 'e f');
< 'a b c d e f'

> mergeClassNames(['a', 'b'], ['c', 'd']);
< 'a b c d'

> mergeClassNames(['a b', 'c d'], ['e f', 'g h']);
< 'a b c d e f g h'

> mergeClassNames('a', 'b', falsyCondition && 'c');
< 'a b'

> mergeClassNames('a', 'b', 'c', null, ['d', null], () => {}, 'e', undefined);
< 'a b c d e'
```

## License

The MIT License.

## Author

<table>
  <tr>
    <td>
      <img src="https://github.com/wojtekmaj.png?s=100" width="100">
    </td>
    <td>
      Wojciech Maj<br />
      <a href="mailto:kontakt@wojtekmaj.pl">kontakt@wojtekmaj.pl</a><br />
      <a href="https://wojtekmaj.pl">https://wojtekmaj.pl</a>
    </td>
  </tr>
</table>

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