Run results for: Classnames vs CLSX vs light-classnames on string concatenation

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.3.1 Safari/605.1.15

Browser: Safari 26

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 4 months ago

light-classnames

217.0M/s

clsx

105.8M/s

classnames

36.8M/s

View exact numbers

Test name	Executions per second
✓ light-classnames	216,996,384 Ops/sec
clsx	105,812,160 Ops/sec
classnames	36,831,740 Ops/sec

HTML Preparation code:


<script src="https://cdnjs.cloudflare.com/ajax/libs/classnames/2.2.6/index.min.js"></script>
<script src="https://unpkg.com/clsx@1.1.0/dist/clsx.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/light-classnames@0.0.3/dist/bundle.umd.min.js"></script>

Script Preparation code:

var str = 'style';
var obj = {
 	 'style-2': true,
  	 'style-3': false,
 	 'style-4': 9,
  	 'style-5': null
};
var number = 6;
var anotherStr = 'jigucha';
var moreObject = {a: undefined, b: 'asdf'}

Tests:

classnames
let result = window.classNames(str, anotherStr)
clsx
let result = window.clsx(str, anotherStr)
light-classnames
let result = window.lcn(str, anotherStr)

Run results for: Classnames vs CLSX vs light-classnames on string concatenation

In doing my new package light-classnames. I'm trying to see if my package is faster than the other two major competitors/

classnames

clsx

light-classnames