Run results for: Classnames vs CLSX vs classNamesCurrent

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Browser: Chrome 126

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

clsx

4.4M/s

classnames

4.3M/s

classNames current

3.1M/s

View exact numbers

Test name	Executions per second
✓ clsx	4,449,324 Ops/sec
classnames	4,251,026 Ops/sec
classNames current	3,051,614 Ops/sec

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/classnames/2.5.1/index.min.js'></script>
<script src='https://unpkg.com/clsx@2.1.1/dist/clsx.min.js'></script>
<script>
  window.classNamesCurrent = (...classes) => {
    return classes.filter(Boolean).join(" ");
  };
</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
let result = window.classNames(str, obj, arr, 'test classname')
clsx
let result = window.clsx(str, obj, arr, 'test classname')
classNames current
let result = window.classNamesCurrent(str, obj, arr, 'test classname')

Run results for: Classnames vs CLSX vs classNamesCurrent

Compare CLSX vs Classnames vs classNamesCurrent

classnames

clsx

classNames current