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

incremental text updates

Benchmark created on October 26, 2024

Setup

document.body.textContent = "Hello";

Teardown

document.body.textContent = "Hello";

Test runner

Ready to run.

Test Ops/sec

nodeValue

Testing in
Test	Ops/sec
nodeValue	`const node = document.body.firstChild; node.nodeValue = "Hello World";`	ready
after	`const node = document.body.firstChild; node.after(" World");`	ready
after + normalize	`const node = document.body.firstChild; node.after(" World"); node.parentNode.normalize();`	ready

const node = document.body.firstChild;
node.nodeValue = "Hello World";

ready

after

const node = document.body.firstChild;
node.after(" World");

ready

after + normalize

const node = document.body.firstChild;
node.after(" World");
node.parentNode.normalize();

ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

Revision 1: published on October 26, 2024