Run results for: Classnames vs CLSX vs [].filter(Boolean).join(" ")

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser: Chrome 122

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
classnames	3236455.2 Ops/sec
clsx	3122987.0 Ops/sec
Entries, filter, map, join	1713268.2 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@1.1.1/dist/clsx.min.js'></script>

Script Preparation code:

var neco = [true, false, undefined, "lorem-ipsum"];

Tests:

classnames
let result = window.classNames("dolor-sit-amet", ...neco, undefined)
clsx
let result = window.clsx("dolor-sit-amet", ...neco, undefined)
Entries, filter, map, join
function cx(...input) { return input.filter(Boolean).join(" "); } let result = cx("dolor-sit-amet", ...neco, undefined)

Run results for: Classnames vs CLSX vs [].filter(Boolean).join(" ")

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

classnames

clsx

Entries, filter, map, join