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  • License MIT

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.

Package Exports

  • merge-class-names

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (merge-class-names) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

npm downloads CI dependencies dev dependencies tested with jest

Merge-Class-Names

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

> 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

Wojciech Maj
kontakt@wojtekmaj.pl
https://wojtekmaj.pl