Run results for: Classnames vs CLSX vs templateLiterals

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.2 Safari/605.1.15

Browser: Safari 15

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
classnames	2607879.0 Ops/sec
clsx	3263179.0 Ops/sec
My attempt using templateLiterals	2167950.5 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 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')
My attempt using templateLiterals
const classname = (...args) => { let joined = ""; args.forEach((arg) => { if (!arg || typeof arg === 'boolean') { return; } if (typeof arg === "string") { joined += ` ${arg} `; } else if (typeof arg === "object") { if (arg?.join) { joined += arg.filter((v) => !!v).join(" "); } else { const keys = Object.keys(arg); keys.forEach(key => { if(!!arg[key]){ joined += ` ${key} ` } }) } } }); return joined; }; let result = classname(str, obj, arr, 'test classname')

Run results for: Classnames vs CLSX vs templateLiterals

Compare CLSX vs Classnames vs templateLiterals

classnames

clsx

My attempt using templateLiterals