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

Number formatter

Benchmark created on March 24, 2025

Setup

const formatOptions = {
  style: "decimal",
  minimumFractionDigits: 0,
  maximumFractionDigits: 2,
  useGrouping: false,
}
const cachedNumberFormat = Intl.NumberFormat('de-DE', formatOptions)

Test runner

Ready to run.

Testing in
Test		Ops/sec
cached	`cachedNumberFormat.format(12023.24124)`	ready
new instance	`Intl.NumberFormat('de-DE', formatOptions).format(12023.24124)`	ready

Revisions

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

Revision 1: published on March 24, 2025