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jsPerf.app is an online JavaScript performance benchmark test runner & jsperf.com mirror. It is a complete rewrite in homage to the once excellent jsperf.com now with hopefully a more modern & maintainable codebase.

jsperf.com URLs are mirrored at the same path, e.g:

https://jsperf.com/negative-modulo/2

Can be accessed at:

https://jsperf.app/negative-modulo/2

Test case details

Title *

Description
(Markdown syntax is allowed)

Preparation Code

Preparation HTML
(this will be inserted in the <body> of a valid HTML5 document in standards mode)
(useful when testing DOM operations or including libraries)

<div id="1"></div>
<div id="2"></div>
<div id="3"></div>

Setup JS

Teardown JS

Test cases

Test #1

Title *

Async

Code *

document.getElementById("1").style.color="#F00";
document.getElementById("2").style.color="#0F0";
document.getElementById("3").style.color="#00F";

Test #2

Title *

Async

Code *

document.getElementById("1").style.color="#f00";
document.getElementById("2").style.color="#0f0";
document.getElementById("3").style.color="#00f";

Test #3

Title *

Async

Code *

document.getElementById("1").style.color="#FF0000";
document.getElementById("2").style.color="#00FF00";
document.getElementById("3").style.color="#0000FF";

Test #4

Title *

Async

Code *

document.getElementById("1").style.color="#ff0000";
document.getElementById("2").style.color="#00ff00";
document.getElementById("3").style.color="#0000ff";

Test #5

Title *

Async

Code *

document.getElementById("1").style.color="rgb(255, 0, 0)";
document.getElementById("2").style.color="rgb(0, 255, 0)";
document.getElementById("3").style.color="rgb(0, 0, 255)";