ClassName ·

Tiny helper for building CSS classes with BEM methodology.

Install

npm i -S @bem-react/classname

Usage

import { cn } from '@bem-react/classname';

const cat = cn('Cat');

cat(); // Cat
cat({ size: 'm' }); // Cat Cat_size_m
cat('Tail'); // Cat-Tail
cat('Tail', { length: 'small' }); // Cat-Tail Cat-Tail_length_small

const dogPaw = cn('Dog', 'Paw');

dogPaw(); // Dog-Paw
dogPaw({ color: 'black', exists: true }); // Dog-Paw Dog-Paw_color_black Dog-Paw_exists

classnames merge

import { classnames } from '@bem-react/classname';

classnames('Block', 'Mix', undefined, 'Block'); // 'Block Mix'

Configure

By default classname uses React naming preset. But it's possible to use any.

import { withNaming } from '@bem-react/classname';

const cn = withNaming({ n: 'ns-', e: '__', m: '_' });

cn('block', 'elem')({ theme: 'default' }); // ns-block__elem_theme_default