Run results for: Classnames vs CLSX vs Template Literals 2/28/2023

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:140.0) Gecko/20100101 Firefox/140.0

Browser: Firefox 140

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

Template Literals

8.9M/s

clsx

6.8M/s

classnames

4.9M/s

View exact numbers

Test name	Executions per second
✓ Template Literals	8,932,513 Ops/sec
clsx	6,764,126 Ops/sec
classnames	4,904,280 Ops/sec

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/classnames/2.3.2/index.min.js'></script>
<script src='https://unpkg.com/clsx@1.2.1/dist/clsx.min.js'></script>

Script Preparation code:

var str = 'style';
var obj = {
 	 'style-2': true,
  	 'style-3': false,
 	 'style-4': true,
}
var arr = ['style-5', 'style-6']

Tests:

classnames
const result = window.classNames(str, obj, arr, 'test classname')
clsx
const result = window.clsx(str, obj, arr, 'test classname')
Template Literals
const reduced = (o) => Object.entries(o).reduce((acc, cur) => { if (cur[1]) acc.push(cur[0]); return acc; }, []).join(' '); const result = `${str} ${reduced(obj)} ${arr.join(' ')} test classname`

Run results for: Classnames vs CLSX vs Template Literals 2/28/2023

Compare CLSX vs Classnames vs an own implementation of creating a template string

classnames

clsx

Template Literals